Titanous Chloride Method for Determination

Thallous Azidodithiocarbonate A637-L Thallous-Thallic Azide A623-R Thermonuclear or Fusion Bomb. See under Atomic Bomb A499-L Thorium Dicarbide A82-R Tin Azide A624-L Titanium Carbide A82-R Titanous Chloride Method for Determination of Nitrobenzene in Aniline A415-R TNT Recovery from Scrap Amatol A161-L Toluidine. See under Aminotoluenes A265-R... 

The prescribed analytical method for determining nitrogen content in PETN is the MIL-STD-286 Method 209.3. The ferrous chloride-titanous chloride method described for NG in Vol 6, G106-7 is also applicable to PETN... 

STD-286B (1 Dec 1967), Method 601.1.1, "Titanous Chloride (0.2N Standard Solution) 20) Frank pristera , 1 Expiosives in Vol 12 of Encyclopedia of Industrial Chemical Analysis, Wiley, NY (1971), pp443—45 (Nitroglycerin and Dynamites, Analysis) 445 (PETN) 445 fit 451 (Ethyleneglycol Nitrates) - 451 (Other organic nitrate esters) 451 (Ammonium Nitrate) 452—60 (Identification of explosives by infrared spectroscopy) 460—62 (Analysis of unknown HE s) 461—67 (Nitrogen content determinations) 467—70 (Other methods for quality control) 470—71 (67 references on analytical procedures)... 

Keay and Menage [13] have described an automated method for the determination of ammonium and nitrate in 2 M potassium chloride extracts of soil. In this method, a sample of soil (2 g) is shaken for one hour with 2 M potassium chloride (20 ml) and the filtrate is diluted, in the AutoAnalyser, with a 0.25% suspension of magnesium oxide the ammonia evolved is absorbed in 0.1 M hydrochloric acid and determined spectrophotometrically at 625 nm by the indophenol method. The sum of ammonium plus nitrate is determined similarly, but with addition of 4.5% titanous chloride solution before distillation this reduces nitrate but not nitrite. 

Using a titrimetric iron determination with titanous chloride, Remmer (R3) obtained for e N a value of 11.09 as an average of 11 determinations. Minkowski (M7) found t N = 11.15, using a spectrophotometric method involving the use of orthophenanthroline. These values are in fair agreement with our results (see Section 2.1.5 and Table 2). An indirect proof of cn =... 

ASCARIDOLE. The B,P.C. method for the determination of ascaridole is that of Cocking and Hymas based upon the oxidising action of the peroxide radical present in the molecule on a strongly acidified solution of potassium iodide and titration of the iodine liberated, under specified conditions. It was found necessary to resort to an empirical method based on the titration of pure ascaridole (standardised by titanous chloride—a method inapplicable to general determination as it has to be carried out in an inert atmosphere) as the reaction which takes place is complex and not yet fully understood. The conditions adopted result in the maximum liberation by a normal peroxide. Obviously, to obtain accurate and concordant results, it is essential to adhere strictly to the conditions laid down. 

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