Fulminating platinum

Fulminating gold Fulminating mercury Fulminating platinum Fulminating silver Fulminic acid Furan... 

Fulminating platinum was first prepared by E. Davy, about 1825, by adding ammonia water to a solution of platinum sulfate, boiling the precipitate with a solution of potash, washing, and allowing to dry. It was exploded by heat, but not easily by percussion or friction. 

If an excess of ammonium hydroxide is added to a solution of the tetrahydroxy acid the liquid darkens and ultimately deposits a brown flocculent mass of Fulminating Platinum,1 NH3Pt,2(OH)10, which is soluble in dilute hydrochloric acid. The flocculent mass resembles hydrated ferric oxide in appearance and contains no chlorine. If dried at 100° C. after thorough washing, and then exposed to further desiccation over sulphuric acid, it absorbs moisture upon exposure to air with such avidity that the particles jump about. 

Fulminating Platinum is obtained by dissolving binoxide of platinum in diluted sulphuric acid and roixiner the solution with an excess of ammonia, when a black precipitate will result which detonates violently at about 400° F. 

This class of compounds showing explosive instability deals with heavy metals bonded to elements other than nitrogen and contains the separately treated groups GOLD COMPOUNDS LEAD SALTS OF NITRO COMPOUNDS LITHIUM PERALKYLURANATES MERCURY COMPOUNDS METAL ACETYLIDES METAL FULMINATES METAL OXALATES PLATINUM COMPOUNDS PRECIOUS METAL DERIVATIVES SILVER COMPOUNDS... 

The complex salts of precious metals, formed by the action of ammonia either on aqueous solutions of silver, gold and platinum salts or on silver oxide were the first substances tp reveal the ability to explode violently on heating, on direct contact witl flame or by friction or impact ( fulminating silver and gold). 

The oxidation of free cyanide ion yields cyanogen or cyanate, never fulminate. It might seem that when the carbon atom is attached to hydrogen or a metal, addition of oxygen to the nitrogen atom should be possible, but there is no record of such an oxidation ever having been achieved. The reverse process, conversion of combined fulminate into combined cyanide, has, however, been demonstrated for platinum(II) and iron(ll) complexes. 

The same is not true of acetylene taken in the gaseous state under atmospheric pressure in these conditions this gas does not detonate either by the action of a red-hot platinum wire or by an electric spark, not even by the explosion of a fulminating mercury cartridge. 

Berthelot and Vielle have shown that, in order for acetylene to explode in contact with a platinum wire brought to incandescence, it was necessary to submit the gas to an initial pressure measured by 137 centimetres of mercury. But acetylene detonates by the explosion of a cartridge containing 0.1 gr. of mercury fulminate, as soon as the initial pressure is measured by 100 centimetres of mercury. 

METAL FULMINATES METAL OXALATES PLATINUM COMPOUNDS PRECIOUS METAL DERIVATIVES SILVER COMPOUNDS... 

ABSOLUTE ALCOHOL or ABSOLUTE ETHANOL (64-17-5) Forms explosive mixture with air (flash point 55°F/13°C). Reacts, possibly violently, with strong oxidizers, bases, acetic anhydride, acetyl bromide, acetyl chloride, aliphatic amines, bromine pentafluoride, calcium oxide, cesium oxide, chloryl perchlorate, disulfuryl difluoride, ethylene glycol methyl ether. Iodine heptafluoride, isocyanates, nitrosyl perchlorate, perchlorates, platinum, potassium- er -butoxide, potassium, potassium oxide, potassium peroxide, phosphonis(III) oxide, silver nitrate, silver oxide, sulfuric acid, oleum, sodium, sodium hydrazide, sodium peroxide, sulfmyl cyanamide, tetrachlorosilane, i-triazine-2,4,6-triol, triethoxydialuminum tribromide, triethylaluminum, uranium fluoride, xenon tetrafluoride. Mixture with mercury nitrate(II) forms explosive mercury fulminate. Forms explosive complexes with perchlorates, magnesium perchlorate (forms ethyl perchlorate), silver perchlorate. Flow or agitation of substance may generate electrostatic charges due to low conductivity. 

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