Assertion: phosphine | /r/HasProperty | free of autoigniting contaminants
Facets:
Source sentences:
text: The phosphine formed is free of autoigniting contaminants, and the gas mixture formed has no tendency to autoignite (see description, page 8, second and third paragraphs; page 9, second to fourth paragraphs; page 18, example, first paragraph, lines 13-15).
text: A process for the manufacture of a metal phosphide composition according to claim 1 ready to be used for preparing phosphine by release into liquid water, which phosphine is free of auto-igniting contaminants which comprises reacting between 300 and 600ºC a metal, selected from aluminum, calcium and magnesium with yellow phosphorus in an inert gas atmosphere and in the presence of a catalyst, selected from the group consisting of chlorine, bromine, iodine, compounds of any of the aforegoing with one of phosphorus, sulphur, hydrogen, zinc, ammonium and the aforesaid metals, and of water, characterised in that the metal is reacted in a finely divided particulate form more than 90% by weight having a particle size of from 0,1 to 2,5 mm and that throughout the reaction batch and throughout the process, once reacting has commenced, the temperature is maintained within the range of 350ºC to 550ºC, so that metal phosphide particles produced have essentially the same particle size(s) as the finely divided metal and that the metal phosphide is withdrawn as a free-flowing material of loose particles being further essentially free of metal phsophide dust, essentially free of hydrophobising substance in the form of coating or hydrophobising additives and essentially free of hydrolysis retarding agents and is packaged in a gas-tight dispenser container for use in phosphine generation in such free-flowing condition, for the doping of semiconductors or for fumigation with hydrogen phosphide.
text: Because of the nature of the novel metal phosphide composition being used in the preferred process, the phosphine formed is free of autoigniting contaminants, and the gas mixture formed was found to have no tendency to autoignite, even when released into air in such amounts that the concentration of the phosphine in air exceeds the ignition limit as known for mixtures of air and phosphine.
text: Because of the nature of the novel metal phosphide composition being used in the preferred process, the phosphine formed is free of autoigniting contaminants, and the gas mixture formed was found to have no tendency to autoignite, even when released into air in such amounts that the concentration of the phosphine in air exceeds the ignition limit as known for mixtures of air and phosphine.
text: Because of the nature of the novel metal phosphide composition being used in the preferred process, the phosphine formed is free of autoigniting contaminants, and the gas mixture formed was found to have no tendency to autoignite, even when released into air in such amounts that the concentration of the phosphine in air exceeds the ignition limit as known for mixtures of air and phosphine.
text: Because of the nature of the novel metal phosphide composition being used in the preferred process, the phosphine formed is free of autoigniting contaminants, and the gas mixture formed was found to have no tendency to autoignite, even when released into air in such amounts that the concentration of the phosphine in air exceeds the ignition limit as known for, mixtures of air and phosphine.