Fulminate-chlorate

J. Taylor (Ref 1, p 161), investigated the effect of aeration on the development of high detonation velocity in BG within 4 inches of the origin of initiation, using fulminate-chlorate detonators. He found that there was a critical density (ca 1,46 g/cc) above which high deton vel did not occur. 

Fulminate Chlorate (90 10). A mixture of MF (Mercuric Fulminate 90 K chlorate) usually employed in older types of detonaiors... 

Explosives , USBurMinesBull 219(1923), pp 62—3(Analysis of MF) l62(Analysis of fulminate—chlorate—Terry 1 detonating mixts) ... 

Modern detonators have a double filling, i.e. a charge of high explosive such as tetryl or penthrite at the bottom, initiated by a layer of mercury fulminate or fulminate-chlorate placed on top (Fig. 56b). In this way more powerful detonators have been produced for mining purposes, containing the following charges ... 

Primary plosophores include the following groups nitrate ester, aromatic nitro, aliphatic nitro, and nitramines while the secondary plosophores include the remainder, such as azo, azido, nitro so, peroxide, fulminate, chlorate, bromare, perchlorate, per-bromate, etc groups... 

With each of the initiators which was tried, tetryl was more easily detonated than TNT. Taylor and Cope100 have determined the minimum charges of fulminate-chlorate (90 10) necessary to cause the complete detonation of various mixtures of TNT and tetryl, as follows ... 

The analysis of simple fulminate-chlorate mixtures may be effected by extraction either with water or with pyridine. In the former method the mixture ts digested with c

mercury fulminate is dried at 50 for three hours and weighed. Some fulminate dissolves in the water. This is estimated by precipitation as sulphide. The chlorate may also be determined in the filtrate. The solution t boiled with nitric acid and tlwn treated with fbrntaldehyde and silver nitrate. Silver chloride is precipitated and the estimation may be made gravimetrically or by Vol hard s method. 

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