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History - People - William Edward Garner
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William Edward Garner |
Tenure: Senior Lecturer 1921-1924
Reader 1924-1927
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We know little of Garner and the dates given above, which come from College Records, must be wrong. Garner's first paper (1914) was lists the Birmingham organic chemist Percy Faraday Frankland (the son of the great Edward Frankland who invented the term valency and who made the first organometallic compounds, particularly the pyrophoric organozincs) as one of the authors. In his next paper, written at UCL on the synthesis of amines, Garner thanks the then UCL Head of Department Norman Collie for his interest. Garner's interests then moved steadily across towards physical chemistry, presumably under the guidance of Frederick Donnan, with whom he published one paper. He published papers on thermodynamics, kinetics, catalysis and crystallization. He moved on to Bristol around 1927.
Garner was remembered by Bill Woodings, lab superintendent after the war, as "a mild-mannered sort of bloke".
Publications
- The heats of crystallization of the ethyl esters of the monobasic aliphatic
acids. King, Annie M.; Garner, William E.. Journal of the Chemical
Society (1934), 1449-56. CODEN: JCSOA9 ISSN: 0368-1769. Journal
language unavailable. CAN 29:335 AN 1935:335 CAPLUS (Copyright
(C) 2010 ACS on SciFinder (R))
Abstract
The thermal data for the Et esters of the monobasic acids between C14 and
C30 were detd. These esters exist in 2 forms, one with a vertical and the
other with a tilted chain. The form stable at the m. p. possesses a
vertical chain when C is greater than 20 and a tilted chain when C is less
than 20. The heats of crystn. of the vertical forms vary linearly with C,
but there is a change of slope for the tilted forms when C = 20. This is
attributed to a change in the mode of orientation of the ester group in the
lattice. The vertical forms possess the highest m. p., and this is ascribed
to a greater rate of attachment of the chain to the surface of a solid.
-
The thermal decomposition and detonation of lead azide crystals. Garner,
Wm. E.; Gomm, A. S. Journal of the Chemical Society (1931), 2123-34.
CODEN: JCSOA9 ISSN: 0368-1769. Journal language unavailable. CAN
25:51867 AN 1931:51867 CAPLUS (Copyright (C) 2010 ACS on SciFinder
(R))
Abstract
The critical increments (I) of the rate of thermal decompn. of alpha - and
beta -azides were detd. at 210-295 Deg, and an approx. value was obtained
for the I of detonation. The temp. coeffs, for alpha -azide were found to
be const. (2.43 av.) between 220 Deg and 280 Deg, from which I was calcd. as
47,600 cals. For the beta -azide the av. value of the temp. coeff. between
200 Deg and 270 Deg is 2.06, from which I was calcd. as 38,800 cal. The
detonation expts. at 295 Deg and 292.5 Deg give the temp. coeff. as 2.2 for
2.5 Deg, from which I was calcd. as 200,000 cal. (approx.). The greater
instability of the beta -form is ascribed to the lower value of its I. It
was shown that, at 260 Deg, for crystals of the same area the decompn. is
about 20 times as rapid as that of the alpha -form. The detonating temp. of
Pb azide is lower in a vacuum than in air. No difference could be detected
between the infra-red spectra for the two short axes of these crystals.
- Melting points and heats of crystallization of the normal long-chain
hydrocarbons. Garner, Wm. E.; Van Bibber, Katherine; King, Annie M.
Journal of the Chemical Society (1931), 1533-41. CODEN: JCSOA9 ISSN:
0368-1769. Journal language unavailable. CAN 25:42338 AN 1931:42338
CAPLUS (Copyright (C) 2010 ACS on SciFinder (R))
Abstract
The heats of crystn. of the alpha form of the following hydrocarbons in
kg.-cal./g. mol. are: C22H46 11.7; C26H54 14.04; C30H62, 16.45; C34H70
19.11; C35H72, 20.65. The heat of crystn., Q, and Q/T, plotted against, n,
the no. of C atoms, gives a linear relationship. Between C20 and C70 the
setting points of the hydrocarbons are given by the equation T = (0.6085 n -
1.75)/(0.001491 n + 0.00404). The increment in the heat of crystn. for one
CH2 group in the alpha form is 0.608 kg.-cal., and 1.0 kg.-cal. for the
beta form. The heat of transition of the alpha -> beta form is 6 to 11
kg.-cal., varying with chain length.
- Melting point curves of the monobasic fatty acids. King, Annie
Millicent; Garner, Wm. Edw.. Journal of the Chemical Society (1931),
578-80. CODEN: JCSOA9 ISSN: 0368-1769. Journal language unavailable.
CAN 25:26248 AN 1931:26248 CAPLUS (Copyright (C) 2010 ACS on
SciFinder (R))
Abstract
The entropy change on crystn. can be accurately represented by the equation
Q/T = 0.002698n - 0.0061 + 0-00475 Sigma 24n log 10n/(n - 2), where n is the
no. of C atoms. In order to make a calcn. of the m. p. of an unknown acid,
it is necessary to be able to det. a value for Q. The manner in which the
heat of crystn. varies with the no. of atoms in the C chain has not been
interpreted theoretically, so that it is only possible to employ an
empirical relationship. For acids having more than 12 C atoms, Q increases
at the rate of 2.060 cal./g. mol. for every 2CH2 groups added to the chain.
- The heats of association of acetic and heptoic acids in the vapor state.
Fenton, Temple M.; Garner, William Edw.. Journal of the Chemical Society
(1930), 694-700. CODEN: JCSOA9 ISSN: 0368-1769. Journal language
unavailable. CAN 24:34710 AN 1930:34710 CAPLUS (Copyright (C)
2010 ACS on SciFinder (R))
Abstract
The heats of assocn. of HOAc find heptoic acid were detd. with a modified
form of the app. used by Ramsay and Young and were found to be 13,790 cal.
per g. mol. from 110 Deg to 194 Deg for the former and 7050 cal. per g. mol.
for the latter between 185 Deg and 230 Deg, this value varying with temp.
The decrease in Heat with increase in length of chain accords with the view
that linkage occurs through the carboxyl groups.
- The dehydration of copper Sulfate pentahydrate. Garner, Wm E.; Tanner,
M. G. Journal of the Chemical Society (1930), 47-57. CODEN: JCSOA9
ISSN: 0368-1769. Journal language unavailable. CAN 24:22618 AN
1930:22618 CAPLUS (Copyright (C) 2010 ACS on SciFinder (R))
Abstract
The rates of dehydration of CuSO4.5H2O crystals 0.2-0.5 g. each) are
measured in a vacuum at 20-56 Deg, their surfaces being activated to insure
an even intersurface from which H2O is liberated) by rubbing (15 min.) with
a CuSO4.H2O crystal enmeshed in silk. The partly dehydrated crystals show a
core of unchanged hydrate, whose surface runs parallel to that of the
original crystal. It is shown experimentally that there is a const.
unidirectional stream of mols. from a unit of the CuSO4.5H2O-CuSO4.H2O
intersurface to the crystal surface. The dehydration product of the
pentahydrate below 46 Deg is CuSO4.H2O; this loses H2O very slowly. On
dehydrating at 56 Deg, the first product is CuSO4.3H2O, which does not
dehydrate further until all the pentahydrate has disappeared. A plot of log
k (k = the velocity coeff. per unit area of intersurface) against the
reciprocal of abs. temps. (1/T) shows that the values at 56.0 Deg lie on the
same straight line as those of the other temps. The crit. increment is
10,300 cal., and calcd. from this micro = 2.77, which corresponds to one of
the vibration frequencies of H2O.
- Alteration in the heats of crystallization of the normal monobasic fatty
acids. IV. Garner, Wm. E.; King, Annie M. Journal of the Chemical
Society (1929), 1849-61. CODEN: JCSOA9 ISSN: 0368-1769. Journal
language unavailable. CAN 24:562 AN 1930:562 CAPLUS (Copyright
(C) 2010 ACS on SciFinder (R))
Abstract
cf. C. A. 21, 2874. The heats of crystn. of the following acids are given
in cals./g.-mol.; Margaric 12.22; tricosanoic 17.60; pentacosanoic 20.00;
behenic 18.75; lignoceric 21.10; that of cerotic acid is 52.25 cals./g. Q.
and Q/T when plotted against n give linear relationships. Cerotic acid is
an exception but this is a mixt. of at least 2 acids. The equation Tm =
(0.9651n-4.49)/(0.002505n-0.0071) has been obtained for the setting points
of the odd acids and gives a curve of similar shape to that previously
obtained for the even acids. There is a difference of 3 Deg in the
convergence temps. of the odd and even acids, which is almost within exptl.
error. A detailed study of the transition of the alpha -and beta -forms of
the odd acids has been made and the heats of transition alpha -> beta have
been measured and found to be const. within the exptl. error (1.55, 1.62 and
1.47 cals./mol. for C17, C23 and C25). For acids above C11 the change beta
-> alpha does not occur readily on raising the temp. This lack of
reversibility is considered to provide a further example of unilateral
equil. The results are correlated with the x-ray measurements of Piper and
in agreement with his results, it is shown that metastable forms make their
appearance on passing from C11 to C13.
- Effect of the addition of hydrogen and water on the radiation emitted from
the carbon monoxide flame. Garner, Wm. E.; Roffey, F. Journal of the
Chemical Society (1929), 123-40. CODEN: JCSOA9 ISSN: 0368-1769.
Journal language unavailable. CAN 23:37916 AN 1929:37916 CAPLUS
(Copyright (C) 2010 ACS on SciFinder (R))
Abstract
The addn. of H2 or water decreases the radiation from the flame and
increases the speed of flame. The difference between the effects of the two
gases is slight. There is a crit. region at 0.02-0.04% of H2, where the
radiation falls abruptly, and the properties of the flame undergo a marked
change. Radiation-compn. and radiation-speed curves give a break at this
point. Logarithmic relationships are found to hold between the speed of
flame and the radiation emitted. These apply to mixts. above and below the
crit. point. They support the "energothermic" theory of catalysis. The
step on the radiation curves is considered to be due to a change in the
nature of the chem. reaction.
- The ionization of aromatic nitro compounds in liquid ammonia. II.
Garner, William E.; Gillbe, Henry F. University College, London, J.
Chem. Soc. (London) (1928), 2889-904. Journal language unavailable.
CAN 23:11731 AN 1929:11731 CAPLUS (Copyright (C) 2010 ACS on
SciFinder (R))
Abstract
cf. C. A. 19, 2588. The velocity of ionization in solns. of
m-dinitrobenzene and of m-dinitrotoluene in liquid NH3 was found to follow a
first-order law, even in those cases where the ionization did not go to
completion. The ionic concns. were detd. by measuring the extinction
coeffs. of the colored solns. The ionic concn. at any time was found to be
proportional to the cond. The most probable course of the reaction is
R(NO2)2 + 2NH3 .dblharw. R(NO2)2.2NH3 .dblharw. R(NO2)2-- + (N2H6)++, the
velocity of the reaction being governed by the first step. The color is
very probably due to the org. anion R(NO2)2--. The temp. coeff. is that of
ordinary chem. reactions. The calcd. crit. increment is 7520 cal. No
evidence was obtained for the existence in the solid state of complexes such
as R(NO2)2.xNH3.
- The critical increment of chemical reactions. Garner, Wm. Edw..
Philosophical Magazine (1798-1977) (1925), 49 463-5. CODEN: PHMAA4
ISSN: 0031-8086. Journal language unavailable. CAN 19:13942 AN
1925:13942 CAPLUS (Copyright (C) 2010 ACS on SciFinder (R))
Abstract
If a given reaction is made up of successive or parallel steps, the failure
of the crit. increment calcd. from the temp. coeff. of the total resultant
reaction to agree with the activation energy does not necessarily mean the
failure of the radiation theory of reaction.
- Alternation in molecular volume of the normal monobasic fatty acids.
Garner, Wm. E.; Ryder, E. A. Journal of the Chemical Society,
Transactions (1925), 127 720-30. CODEN: JCHTA3 ISSN: 0368-1645.
Journal language unavailable. CAN 19:12901 AN 1925:12901 CAPLUS
(Copyright (C) 2010 ACS on SciFinder (R))
Abstract
cf. G. and Randall, C. A. 18, 2637. The following d. are reported: C8H16O2,
50.27 Deg, 0.8862; 20.02 Deg, 0.9101. C9H18O2, 50.17 Deg, 0.8813; 15 Deg,
0.9087. C10H20O2, 50.17 Deg, 0.8773; 35.05 Deg, 0.8884. C11H22O2, 50.15 Deg,
0.8741; 30 Deg, 0.8889. C12H24O2, 50.25 Deg, 0.8707; 45.10 Deg, 0.7844. The
following figures give the sp. vol. of the solid and liquid acids at the m.
p. and of the liquid acids at 50 Deg (the first by the air-thermometer
method, the last 2 by the pyknometer method) and Delta -MV at the m. p.:
C8H16O2, 0.9737, 1.0951, 1.1283, 17.51; C9H18O2, 1.0104, 1.0979, 1.1347,
13.95; C10H20O2, 0.9870, 1.1220, 1.1398, 23.24; C11H22O2, 1.0121, 1.1232,
1.1440, 20.68; C12H24O2, 0.9971, 1.1423, 1.1483, 29.07. The mean temp.
coeff. of the sp. vol. is: solids, 0.00077 per 1 Deg; liquids, 0.00103 per 1
Deg. The mol. vols. for the liquid state at 50 Deg increase by 16.8 cc./g.
mol. for each CH2 group added to the chain, whereas those for the solid
state alternate in a marked manner as the series is ascended. The area of
cross section of 1 mol. in the crystal, 23.8 .ANG.., is non-alternating,
hence the alternation in mol. vol. is due entirely to changes in the chain
length from member to member. The magnitude of the alteration is in
agreement with the views expressed by G. and R. with regard to the
constitution of these acids in the solid state.
- The explosion of acetylene and nitrogen. IV. Spectra of explosions of gases
containing hydrogen, carbon, nitrogen and oxygen. Garner, Wm. E.;
Saunders, S. W. Journal of the Chemical Society, Transactions (1925),
127 77-82. CODEN: JCHTA3 ISSN: 0368-1645. Journal language unavailable.
CAN 19:9928 AN 1925:9928 CAPLUS (Copyright (C) 2010 ACS on
SciFinder (R))
Abstract
cf. C. A. 18, 2331. The origin of the Swan and CN band spectra has been
much investigated and discussed. The results obtained by G. and S. indicate
that the presence of both C and N is essential for the production of the CN
spectrum. The nature of the spectrum emitted during explosion of C2H2 in O
and N is very largely dependent on the ratio of g.-atoms of C to O in the
mixt. The Swan and CN spectra appear and disappear together as the O
percentage increases. Their disappearance occurs approx. at the concns. for
the disappearance of free C and HCN from the final products of the explosion
which is when the ratio of O to C becomes unity. Thus the presence of free
C is essential not only to the production of HCN but also for both the Swan
and the CN spectra. On the mol. collision view of the propagation of the
explosion wave, undecomposed C2H2 mols. immediately in front of the wave
will be bombarded by swiftly moving mols. of C, H, O, CO, etc., from the
explosion wave itself. An O mol., in collision with an C2H2 mol., would be
likely to give CO, but no free C, thus (C2H2 + O2 -> 2CO + H2), but any
other mol. may bring about the change (C2H2 -> 2C + H2). Hence even in the
presence of excess O free C may be momentarily formed, and if the av. life
of the C particles, before conversion to CO, is long enough the Swan
spectrum may be emitted.
- The heat of adsorption of oxygen by charcoal. Blench, E. A.; Garner, Wm.
E.. Journal of the Chemical Society, Transactions (1924), 125 1288-95.
CODEN: JCHTA3 ISSN: 0368-1645. Journal language unavailable. CAN
18:21085 AN 1924:21085 CAPLUS (Copyright (C) 2010 ACS on SciFinder
(R))
Abstract
"The heat of adsorption of O2 by charcoal for the first small quantities of
O2 adsorbed ranges from 60 to 220 cal./mol. of O2 adsorbed as the temp. of
adsorption rises from 18 Deg to 450 Deg, and falls off rapidly as the
surface becomes satd. The rapid rise in the heat of adsorption is ascribed
to changes in the mode of orientation of the O atoms on the surface with
temp. At low temp. O2 mols. are adsorbed without chem. change but at high
temp. intimate combination occurs with the formation of groups CxOy on the
surface. Some of these groups are stable and others unstable at any
particular temp. The heat of formation of the stable groups increases with
increase in the temp. of adsorption."
- The rapid admixture of hot combustible gases with air. Cray, F. M.;
Garner, Wm. E.. Journal of the Chemical Society, Transactions (1924),
125 57-69. CODEN: JCHTA3 ISSN: 0368-1645. Journal language unavailable.
CAN 18:10325 AN 1924:10325 CAPLUS (Copyright (C) 2010 ACS on
SciFinder (R))
Abstract
Expts. are described in which picric acid in steel containers and mixts. of
C2H2 and O in glass bulbs were exploded in a limited vol. of air. The
combustion products were analyzed to det. the degree of ignition which had
occurred. With picric acid, representing a high explosive, the phenomenon
of "after-ignition" is partly detd. by the vol. of air into which the gases
are projected, ignition occurring when the ratio of the wt. of explosive to
the vol. of air exceeds a definite value. Interpretation of the results is
made difficult by the unknown amt. of cooling brought about by disruption of
the container. On the other hand, the gaseous products from mixts. of C2H2
and O, because of their much slower rates of explosion compared with the
velocity of detonation of high explosives, in all cases underwent partial
ignition on admixt. with air. The degree of ignition depended partly on the
ratio of the vol. of air to vol. of explosive and slightly on changes in
compn. of the gaseous mixt. The ignition is more complete the slower the
velocity of explosion of the gases, confirming the view that the ignition
temp. of hot gases projected into cold air depends on the rapidity of
admixt. The app. and technic are described.
- Note on the effect of a magnetic field on catalysis by ions in the presence
of a paramagnetic salt. Garner, Wm. E.; Jackman, D. N. Journal of the
Chemical Society, Transactions (1922), 121 1298-9. CODEN: JCHTA3 ISSN:
0368-1645. Journal language unavailable. CAN 16:22265 AN 1922:22265
CAPLUS (Copyright (C) 2010 ACS on SciFinder (R))
Abstract
The mutarotation of dextrose and the hydrolysis of sucrose by HCl, both in
the presence of the paramagnetic salt MnCl2, were not affected measurably by
a magnetic field of 8000 units.
- Catalysis of the mutarotation of dextrose by metals. Garner, Wm. E.;
Jackman, D. N. Journal of the Chemical Society, Transactions (1921),
119 1936-48. CODEN: JCHTA3 ISSN: 0368-1645. Journal language
unavailable. CAN 16:5986 AN 1922:5986 CAPLUS (Copyright (C) 2010
ACS on SciFinder (R))
Abstract
The mutarotation of dextrose, lactose and maltose is catalyzed by metallic
Ni, Co, Fe, and Cu. Most of the expts. were performed with dextrose and Ni
or Co. The catalyst was added to the dextrose soln. in a polarimeter tube.
A second tube contg. the soln. without catalyst was always used as a blank.
The tubes were kept at 25 Deg and agitated by rocking. At intervals the
rotation of the solns. in the 2 tubes was detd. and the difference taken as
the catalytic effect of the metal. The metals are much more active after a
preliminary oxidation at 800 Deg followed by reduction in H2. The catalyst
is most active when the reduction is carried out at 340-60 Deg; the activity
falls off rapidly at higher or lower temps. The catalytic effect decreases
with time; it is max. about 48 min. after the beginning of the reaction.
After use in one expt. the catalytic-effect is destroyed, but the soln. from
one expt. is often capable of catalyzing a fresh dextrose soln. The addn.
of NaOH or NH4OH to the soln. does not affect the catalysis, but it is
inhibited by N/50,000 HCl. Since the temp. coeff. of the velocity const. is
about the same as for the ordinary mutarotation, i. e., doubled for every 5
Deg rise in temp., it is unlikely that the catalysis occurs on the metal
surface. Both metal and hydroxyl ions can be detected in the solns. even
when dissolved O2 is entirely absent. The OH- concn. obtained is of the
order necessary to produce the observed change in the velocity of
mutarotation. It is concluded that the function of the metal is to produce
OH- by soln. of some of the freshly reduced metal as the hydroxide.
- A metal-glass tap. Garner, Wm. Edward. University Coll., London,
Journal of the Society of Chemical Industry, London (1920), 39 347-8T.
CODEN: JSCIAN ISSN: 0368-4075. Journal language unavailable. CAN
15:3538 AN 1921:3538 CAPLUS (Copyright (C) 2010 ACS on SciFinder
(R))
Abstract
cf. C. A. I4, 2567. A joint is made between a metal disk brazed to the
metal capillary and a glass disk formed on the end of the glass capillary.
The capillary opening is bored straight through the glass disk, but
obliquely through the metal disk, and the two are held in eccentric position
by screw compression members, so that when the metal capillary with its disk
is rotated, the capillaries may be made to communicate, an indicator on the
rotating capillary engaging with a pin at this point.
- Effect of the addition of certain fatty acids on the inter-facial tension
between B. P. paraffin oil and mercury. Bhatnagar, S. S.; Garner, Wm.
E.. Journal of the Society of Chemical Industry, London (1920), 39
185-7T. CODEN: JSCIAN ISSN: 0368-4075. Journal language unavailable.
CAN 14:14747 AN 1920:14747 CAPLUS (Copyright (C) 2010 ACS on
SciFinder (R))
Abstract
Since there is no method yet known for measuring the solid-liquid
interfacial tension, the liquid metal Hg was chosen. B. P. paraffin was
selected on account of its definite compn. and its high viscosity and b. p.,
properties which are good characteristics of an oil for lubrication
purposes. The fatty acids (oleic, stearic, palmitic and linolic) examd.
were pure except the last-named, which was a technical product. The
inter-facial tension between Hg and the solns. of fatty acids in paraffin
oil was detd. by the dropping pipet method, already used by Donnan (cf. Z.
physik. Chem. 31, 42). The bulk of the pipet was filled with carefully
cleaned Hg up to a definite mark, and the head of the Hg was always kept
const. by an adjustable side-reservoir of Hg (see original for cut). This
kept the rate of the falling drop quite const. The end of the capillary
dipping in the oil solns. was made smooth and as regular as possible by
careful grinding, the inner capillary being protected by sealing wax. The
capillary was so narrowed that only 2 drops of Hg were formed in about a
min. The rate of formation of the drop must be very slow; otherwise the
size and shape will be irregular, as pointed out by Rayleigh (cf. Proc. Roy.
Inst. 13, 857). The results obtained with the materials and pipet above
indicated were plotted in 4 curves, the 3 involving oleic, stearic and
palmitic acids being very similar in nature, especially at higher molar
concn., while the linolic acid being impure shows a diminution in the wt. of
the drop of Hg very much greater than in the case of stearic and palmitic
acids. The curve for oleic acid shows an inflexion pt. at a concn. of about
0. 25 %. Similar abnormalities were observed by Donnan and also by Forch in
the case of nonylic acid. The resemblance of these curves to those for
fatty acids obtained by Langmuir (J. Am. Chem. Soc. 39, 1879; C. A. 11,
2849) is very striking. It appears that the increased efficiency of a
mineral oil as a lubricant to which an org. acid is added runs parallel with
a lowering of tension at the metal-oil surface.
- Equilibria across a copper ferrocyanide and an amyl alcohol membrane.
Donnan, Frederick George; Garner, William Edward. Journal of the Chemical
Society, Transactions (1919), 115 1313-28. CODEN: JCHTA3 ISSN:
0368-1645. Journal language unavailable. CAN 14:4734 AN 1920:4734
CAPLUS (Copyright (C) 2010 ACS on SciFinder (R))
Abstract
Solns. of Na4Fe(CN)6 and K4Fe(CN)6 were sepd. by a Cu2Fe(CN)6 membrane which
is permeable to K+ and Na+ ions but not permeable to Fe(CN)6 ions. The
solns. were held in contact with the membrane until equil. was reached as
shown by the cond. of the solns. Analysis of the solns. at equil. proved
the following equation to be true: (Na1+) (K2+) = (Na2+) (K2+) where Na1+
and K1+ are the concn. on one side of the membrane and Na2+ and K2+ are the
concn. on the other side of the membrane. Similar expts. were carried out
in which amyl alc. was used as a membrane. The actual procedure in this
case differed from that used with the Cu2Fe(CN)6. The distribution of LiCl
between amyl alc. and water was detd. A soln. of KCl (insol. in amyl alc.)
and Licl was then shaken with amyl alc. and the amt. of LiCl in each layer
detd. It was then possible to calc. the concn. of the LiCl soln. which
would be in equil. with the same amyl alc. soln. The following relation was
shown to exist: (Li1+) (Cl1-) = (Li2+) (Cl2-) where Li1+ and Cl1- are the
concn. of these ions in the soln. containing KCl and Li2+ and Cl2- are the
concns. of the ions in the LiCl soln. LiCl was found to exist as double
mols. in amyl alc.
- Preparation of diethylamine. Garner, William E.; Tyrer, Daniel. Univ.
Coll., London, Journal of the Chemical Society, Transactions (1916),
109 174-5. CODEN: JCHTA3 ISSN: 0368-1645. Journal language unavailable.
CAN 10:6986 AN 1916:6986 CAPLUS (Copyright (C) 2010 ACS on
SciFinder (R))
Abstract
A modification of Hofmann's method. While H. could not sep. a mixt. of
Et3NH2, Et2NH, and Et3N, G. and T. have found that practically pure Et2NH
may be fractionated from a mixt. of the 3. 8000 cc. alc. and 3000 g. EtBr
were satd. with NH3 several times during the day, the temp. gradually rizing
to 30 Deg, and NH4Br crystg. out. After 24 hrs. the soln, was sepd. from
the salt, and the alc. and unchanged EtBr distd. off, adding H2O and boiling
to remove the last traces of alc. Concd. NaOH was then added and the amines
distd. off. The alc. NH3-EtBr was used in the prepn. of a new lot. Using a
10-bulb column, there was no difficulty in sepg. the amines. Yields, 10.9%
EtNH2, 17.9% Et2NH, 19.1% Et3N. About 80% of the Et2NH (b. within 1 Deg)
can be obtained by 2 fractional distns. The crude EtNH2 fraction was worked
up as follows: 500 g. (containing about 10% Et2NH) were dissolved in 2500
cc. alc. and 1000 g. EtBr added, cooling with ice. After 24 hrs. 2oo g.
NH4Br were added to fix any free amines present, and the soln. was treated
as above. Yields, 38.7% EtNH2, 30.1% Et2NH, 17.3% Et3N. As the EtNH2 can
be again used, about 50% of this can be converted into Et2NH.
New model to illustrate the Walden inversion. Garner, William E..
Proceedings of the Chemical Society, London (1914), 29 198-201. CODEN:
PCSLAW ISSN: 0369-8718. Journal language unavailable. CAN 8:22687
AN 1914:22687 CAPLUS (Copyright (C) 2010 ACS on SciFinder (R))
- Action of thionyl chloride on lactic acid and on ethyl lactate.
Frankland, Percy F.; Garner, William E.. Birmingham, Journal of the
Chemical Society, Transactions (1914), 105 1101-15. CODEN: JCHTA3 ISSN:
0368-1645. Journal language unavailable. CAN 8:16061 AN 1914:16061
CAPLUS (Copyright (C) 2010 ACS on SciFinder (R))
Abstract
The action of SOCl2 and Ag2O upon optically active HO compds. falls into 2
classes, in both of which inversion occurs: (1) l-OH -> l-Cl -> d-OH. (2)
l-OH -> d-Cl -> d-OH. A study of lactic acid shows that the reaction
belongs to (2). The complete analogy between the transformations of malic
and lactic acids may now be regarded as established. 38 g. MeCH(OH)CO2H
([alpha ]D18 1.68 Deg), heated with 116 g. SOCl2 3 hrs. at 95 Deg and then 8
hrs. at 113 Deg, gave l-chloropropionyl chloride (A), b. 110-3 Deg, [alpha
]D18 0.2 Deg. (In the work no attempt was made to isolate optically pure
substances.) This gave l-chloropropionic acid, [alpha ]D17 -2.36 Deg.
Ethyl ester (D), b746 143.5 Deg, [alpha ]D17 -2.92 Deg. When 20 g.
MeCH(OH)CO2H and 65 g. SOCl2 are heated 3 hrs. at 100 Deg (bath temp.) and
6-7 hrs. at 105-8 Deg (temp. of liquid not over 97 Deg),
chlorosulfinyllactyl chloride (B), MeCH(OSOCl)COCl results, pungent smelling
liquid, b12 72.5 Deg, alpha D 42 Deg, fumes in the air. It decomps. very
slowly at 100 Deg but at 125 Deg readily gives (A). (B) cannot be prepd. by
the action of SO2 or SOCl2 upon (A). MeCH(OH)CO2H and SOCl2 heated at
110-15 Deg for 16-17 hrs. gives a mixt. of (A) and chloropropionyllactyl
chloride, MeCH(OCOCHClMe)COCl, b13 93-4 Deg, alpha D 3.60 Deg. It is not
changed by further b. with SOCl2. Free acid, m. 48-50 Deg, [alpha ]D58 4.04
Deg. 22 g. SOCl2 and 14.5 g. MeCH(OH)CO2Et, heated 2 hrs. at 100 Deg, gave
ethyl chlorosulfinyllactate (C), b12 96.5-7 Deg, [alpha ]D18 77.62 Deg. It
fumes in the air and is decompd. by H2O. Heated with MeCH(OH)CO2Et 1.5 hrs.
at 120-5 Deg, it gives ethyl thionyllactate, SO(OCHMeCO2Et)2, b13 167 Deg,
[alpha ]D15 42.64. It is not affected by cold alk. With SOCl2 at 100-10
Deg it gives (C). C5H5N.HCl acting upon (C) 6 hrs. at 80 Deg gave (D),
[alpha ]D16 -3.82 Deg. 4.5 g. (D) and 5 g. C5H5N.HCl heated 19 hrs. at 105
Deg gave an inactive ester. PhNH2.HCl and (C) heated 8 hrs. at 90-100 Deg
gave (D) with [alpha ]D20 -4.32 Deg and -4.76 Deg. PhNH2 and (C) give a
different product, probably MeCH(OSONHPh)CO2Et.
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20 September, 2010
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