Honolulu star-bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1912-2010, 1915-10-20
CHEMISTRY OF
SUGAR UP FOR
DISCUSSION
First Of Series Of Technical
Papers Read at Opening
Session Of Convention

With more than IS members from
various parts OF the territory In at
tendance, the 18th annual convention
of the Hawaiian Chemists Associs-
ton convened in the Library of fIa-
wall at 9 O'Clock this morning II. P.
Agee, president Of the association,
presided and opened the convention.
One OF the first matters to be con-
s!dered was a letter from the sugar
mill engineers Of Hawaii, inviting the
members Of the chemists association
to attend the engineers convention,
which begins next Tuesday morning.
President Agee Urged that as many
members of the chemists association
as possible attend. An invitation to
attend the chemists convention was
to be forwarded to the engineers to-
day.
Both of today's sessions were TAX
en- up with the reading or interesting
papers pertaining to chemistry in the
manufacture of sugar, and discussion.
The f4rst paper, entitled Glucose. De-
rterinination,p was read by W. B. Nc,
Allen. In June, 1918, the president
of, the association requested Mr.. Nc,
Aliep to assume the duties Of chair
man of a committee on glucose de-
Examinations. 70. ! 80, -: ~. 49,;
Original Work Abandoned. -. 81.
+. AS Il seemed improbable that time
could be spared, at the experiment sta.
ton laboratory for research work On
this, subject stated Mr.. McAHep's. pa
Der, and as it would De neither prac-
ticable nor equitable To request work
from members Of the committee, in
which the experiment STATEN could
cooperate, the idea of any original in
vestigation was abandoned.
The report dealt with data on the
subject compiled from other sources.
1t quoted at length from paper by
Wedderburn on Reduction OF Copper
Oxide in Alcohol Vapor in Reducing
Sugar Determinations and Copper An
alysis," which was published In the
Journal of Industrial End Engineer
ing Chemistry In July, this year.
The report goes on to say that seq
eral letters were sent out containing
the following questions: -@-
What method do you prefer for
ACCURATE determinations in cane sugar
house products? =, 4
what method do you recommend
for, routine. factory work. > ~
:; DO you know Of any recent work
along this line which has made, or
PROMISES to make any ifnproS eTneIit
on the conventional methods? ~ '.'s "a
Would you have any objection to-
eur quoting you "A s6ar report at the
annual meeting of the Hawaiian Che
mists'. ,Association? HsEf.r':F' .'."'.'7I
:, Replies were received from C. A.
Browne, referee upon sugar fare the
Association of Official Agricultural
Chemists; w. G.. Taggart, acting d.
rector of the sugar experiment sta
ton of Louisiana state university, and
G. l.. Spencer of the Guban-Ar> 3fieaR
Sugar Company. s>.> ./--~
&c. L. Spencer replied as follows:a i
The preliminary steps for all the
methods we use are the same, and
are described in the accompanying
proof sheets. l am following your num-
bering in replying to your inquiries:
Very Rapid; Good Results.
Il. For accurate determination | pre-
fer gravimetric method with electro
lytic reduction to metallic copper from
nitric solution. The calculation Is
made using Meissl-Hiller factors.
Wedderburn's reduction to copper In
alcohol vapor, using a Gooch crucible
(silica) is very rapid and gives almost
this morning on the Matsonia for his
home, in San Francisco. .;,,.: -