Antimony powder

Fieber-pulver, n. fever powder, ague powder (antimonial powder), -rinde, /. cinchona bark. 

Iodine and antimony powder react so violently as to cause ignition or explosion of the bulk of the mixture. A mixture of potassium and iodine explodes weakly on impact, while potassium ignites in contact with molten iodine [1], Interaction of molten iodine with titanium above 113°C under vacuum to form titanium tetraiodide is highly exothermic and sparks are produced. The preparative technique described permits the progressive reaction of 0.5 g portions of the titanium powder charged (7.2 g) to minimise hazard [2],... 

Potassium chlorate. Sulfur, Charcoal powder Potassium chlorate. Sulfur, Antimony powder Sodium perchlorate. Aluminum powder... 

Potassium bichromate. Antimony sulfide Potassium permanganate. Powdered sugar Barium chlorate, Paraffln wax Potassium perchlorate. Cane sugar Sodium nitrate. Sulfur Sodium peroxide. Sulfur Sodium chlorite. Aluminum powder Magnesium chlorate. Aluminum powder Guanidine nitrate. Antimony powder Ammonium nitrate. Gasoline... 

Reaction of Chlorine with Metals. 1. Put a little of antimony powder on a sheet of paper, open one of the bottles with chlorine and gradually spill the antimony into it. What happens Write the equation of the reaction. 

A gram or two of antimony powder may be added to the solution before distillation to reduce any trivalent Iron to the ferrous state ... 

Twenty grams of antimony powder is suspended in 1 1. of boiling benzene in a flask fitted with a reflux condenser. 

Metals. Antimony powder reacts violently mixture of potassium and iodine explodes weakly on impact and potassium ignites in contact with molten I2."... 

Shslis", [SbL ]x, [Sb2l lx)." Abinuclear Sb(III) complex with bridging iodine and sulfur atoms of the type LSb(/u.-I)2(/n-S)SbL is formed by reacting antimony powder with diiodine and (SPPh2NHPPh2S) (HL). ... 

SYNS ANTIMONY BLACK ANTIMONY POWDER (DO-p ANTIMONY REGULUS ANTYMON (POLISH) C.I. 77050 STIBIUM... 

Ignition or explosive reaction with metals (e.g., aluminum, antimony powder, bismuth powder, brass, calcium powder, copper, germanium, iron, manganese, potassium, tin, vanadium powder). Reaction with some metals requires moist CI2 or heat. Ignites with diethyl zinc (on contact), polyisobutylene (at 130°), metal acetylides, metal carbides, metal hydrides (e.g., potassium hydride, sodium hydride, copper hydride), metal phosphides (e.g., copper(II) phosphide), methane + oxygen, hydrazine, hydroxylamine, calcium nitride, nonmetals (e.g., boron, active carbon, silicon, phosphoms), nonmetal hydrides (e.g., arsine, phosphine, silane), steel (above 200° or as low as 50° when impurities are present), sulfides (e.g., arsenic disulfide, boron trisulfide, mercuric sulfide), trialkyl boranes. 

Explosive reaction with acetylene, antimony powder, hafnium powder + heat, tetraamine copper(II) sulfate + ethanol, trioxygen difluoride (possibly ignition), polyacetylene (at 113°C). Forms sensitive, explosive mixtures with potassium (impact-and heat-sensitive), sodium (shock-sensitive), oxygen difluoride (heat-sensitive). Reacts to form explosive products with ammonia, ammonia + Uthium 1-heptynide, ammonia + potassium, butadiene + ethanol + mercuric oxide, silver azide. 

Dr. James antimonial powder (fever powder) patented in 1747... 

These are the same as for the match compositions. Manganese dioxide, the sulphides of antimony, powdered charcoal, amorphous phosphorus potassium chlorate, glass powder, etc., as frictional materiab chalk, etc., as hlling materials umber and the like as colouring matters glue, gelatin, and dextrin as binding nuterials. 

The reaction is rapid and exothermic (and may be explosive at too high a temperature), and the COFj and COBrF are readily separated by condensing out the COBrF into a trap cooled to -78 "C, and subsequently trapping the COFj into a trap cooled to -196 C. To remove the final traces of bromine from the COFj, it may be passed over antimony powder and recondensed [1193],... 

COCIF may be prepared by the passage of a gas stream of chlorine(I) fluoride and an excess of carbon monoxide at -18 C into an iron reaction vessel, with the exclusion of air and moisture. The gaseous reaction product is then condensed into a quartz vessel and the crude product distilled through, and from, antimony powder. The yield was found to vary between 85 and 90% (based upon CIF), and was greater if the reaction was performed more slowly the main contaminants were COF and COClj [1194]. Only a ten percent yield of COCIF was obtained by reaction of CIF 3 and CO (diluted with dinitrogen) at -180 C over activated charcoal [1196a],... 

Dibromine contamination can be removed by passing the impure carbonyl bromide fluoride over antimony powder [1SS5], and then COBrF can be purified by fractional distillation... 

The product (90% yield based on BrFj) was purified by passing through antimony powder, followed by distillation (in quartz equipment) to separate it from COFj. 

The reaction takes place in a rotating autoclave over eight hours, and under a partial pressure of carbon monoxide of 12 MPa. After bleeding off the carbonyl difluoride co-product and the excess of carbon monoxide, the COFI was removed by distillation at about 26.7 kPa, foliowed by a further distillation in vacuo over antimony powder to give a yield of 12% for COFI (based on IF ). The material is suitably stored in quartz vessels cooled with dry ice [1196,1751]. 

Antimony powder reacts with bromine more rapidly at 75°C (left) than at 25°C (right). 

Bis(trifluoromethyl)(trimethylsilyl)phosphine (22) has been prepared by an exchange reaction using bis(trifluoromethyl)phosphine. Fluoroalkylphos-phines (23) may also be obtained by treatment of (fluoroalkyl)iodophosphines with trifluoromethyl iodide in the presence of antimony powder. ... 

We report on the powder metallurgical fabrication of bismuth-antimony solid solution and the thermoelectric properties of the fabricated composites. The solid solution powders were prepared by mechanical alloying (MA) aiming at large reduction of the thermal conductivity with the very fine microstructures obtained through MA process. The prepared bismuth-antimony powders (Bi-7.5at%Sb) have been sintered by hot pressing. 

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