Photometric Determination of Phosphorus in Limestone

Spectrophotometric Determination of Phosphorus in Limestone, Lime, Calcium Hydroxide, Calcium Carbide, and Acetylene

“…T NFRARED frequencies characteristic of the number and position of substituting groups on an aromatic ring have been reported (1,3,5) for mono-and for all possible diand trisubstituted benzene configurations. Of the three tetrasubstituted rings, frequencies associated with the 1,2,3,5-and 1,2,4,5-configurations have also been reported ( 5), but the frequency characteristic of 1,2,3,4-substitution has not been established.…”

“…These results are in agreement with the findings of Kitson and Mellon (3). Therefore, the molvbdivanadophosphate method was considered the most suitable and research was based on the work done by Brabson, Karchmer, and Katz (1), who adapted this method to the determination of phosphorus in limestone.…”

Sugar Quality Control, Colorimetric Determination of Phosphate in Sugar Products

“…Most acute toxicological data appear to have been summarized in the "Handbook of Toxicology" (7). Some data from this handbook which are useful to the present investigation are reproduced in Table I. Acute oral toxicity tests have been carried out on several acetate salts of aliphatic amines (2). The compounds tested were Armour's Armac C, Armac T, Armac T D , and Armac HT.…”

“…The compounds tested were Armour's Armac C, Armac T, Armac T D , and Armac HT. The descriptions of these compounds have been given (2). They are manufactured from amines containing from 8 to 18 carbon atoms.…”