Cross gases, blue

Blue Cross Gases. This includes solid substances with low volatility and great irritant power diphenyl chloroarsine, diphenyl cyanoarsine, etc. 

SYNS BLUE CROSS CLARK I DA DIPHENYL-ARSINOUS CHLORIDE DIPHENYLCHLOORARSINE (DUTCH) DIPHENYLCHLOROARSINE (DOT) SNEEZING GAS... 

The first of the lung-injurant agents to appear in the World War was phcnyldiehlorarwine. ThU gas was first used by the Gerniaas in September, 1917, with, and as a solvent for, diphenylcyauarsine (Clark 2) in Blue Cross I artillery shell, and later by the French in a mixture with 40 per cent cUphcnylchlorarsine, knowm as Sternite. ... 

It is of interest in connection with these arsenic compounds to mention one which was extensively used by the Germans in the Great War. It was known as blue cross or sneeze gas it has the formula (C6H5)2AsCl and is diphenyl-chloroarsine. It was prepared in large quantities through the use of Bart s reaction, which has been mentioned above. 

Organobismuth compounds are extremely toxic. BiPh2X is a more powerful chemical warfare agent than AsPh2Cl, which is known as blue-cross shell gas. Several organometallic compounds of Bi are used for bactericidal and fungicidal applications [7]. 

As regards Blue Cross shell, there is no doubt that the enemy over-estimated their value their gas effect was small on our troops and no fatal cases of poisoning are known to have resulted from them so that the loss of explosive effect resulting from the inclusion of the chlor-arsines in the filling was not justified. ... 

Fig. 4.33. Measured CO oxidation rate on EBL-fabricated model catalysts with different support materials and particle sizes (a) The inlet gas mixture represented by the parameter (3 = Pco/ Pco + P02) has been scanned up/down at a constant temperature of 450 K, and the rate of CO2 production has been monitored during the gas scan in j3. This has been made for three different samples (a) 750-nm Pt/Si02 (blue), (b) 750-nm Pt/CeOj, (black), and (c) Pt/CeOj, sample (200mn, red, disintegrated particles). Results both from experiments (filled circles) and simulations solid lines) are shown. The arrows indicate which reaction rate branch that has been observed while scanning up/down in (3. A bistable region (hysteresis) is observed for all samples, (b) The bistability diagrams determined from a series of measurements as those shown in (a) at different temperatures (Pt/Si02, blue and open squares) Pt/CeOj, black hatch marks and crosses and the 200-nm Pt/CeOj, red hatched area and open squares). The observed differences can be traced back to a pronounced O-spillover effect on ceria. Note the logarithmic scale for the /3-value (from [29])...

Use of non-gas-resistant DPM (blue backing colour) which is same colour as the gas-resistant membrane (silver backing colour). The gas-resistant membrane was used at the edges to cross tiie cavity so that after casting the concrete it would appear that a gas-resistant membrane had been placed below the whole slab... 

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