Antimony thio-antimonate

The use of antimony tetrasulphide (86254), also known as antimony thio-antimonate, is in a rather different category. Centers showed that when 36 vol%... 

Lavik et al ° reported up to 400% improvement in wear life, and lower friction at high or low temperature, when antimony trioxide was used in polyimide or polybenzothiazole-bonded films. Lower improvements, up to 270%, were obtained with antimony trisulphide, while Bartz reported that the addition of both graphite and antimony tetrasulphide (or antimony thio-antimonate Sb(SbS4)) gave a much greater improvement in the life of a polybutyltitanate-bonded molybdenum disulphide film than either of the additives separately. 

The results of the experiments made by Borchers in 1886 prove that antimony was deposited in equal quantity both from the thio-antimoniate and thio-antimonite. If a sodium thio-antimonate solution be used, it is only necessary to add either sodium sulphide or sodium hydroxide, in such quantity that there is at least one atom of sodium for every atom of sulphur, in order to prevent the separation of sulphur at the anode. In other words, the action takes place best when three molecules of sodium sulphide (Na2S) are present for each molecule of antimony sulphide (SbjSj). 

All reported cases of CD antimony sulphide involve the trisulphide, Sb2S3. Sb2S3 is soluble in hydroxide to give antimonates and in excess sulphide to give thio-complexes. The latter is not a problem in CD since free sulphide, if it exists, does so in a very low concentration and is rapidly taken up to precipitate Sb2S3. However, the solubility in alkaline solutions limits the pH of the deposition solutions. Sb2S3 exists in two forms so-called amorphous Sb2S3, which varies in color from... 

SYNS ANTHIOLIMINE ANTHIOMALINE UTHIUM ANTIMONIOTHIOMALATE MERCAPTO-SUCCINIC ACID ANTIMONATE(III) HEXAUTHIUM SALT MERCAPTOSUCCINIC ACID-S-ANTIMONY DERIVATIVE LITHIUM SALT MERCAPTOSUCCINIC ACID,THIOANTIMONATE(III), DIUTHIUM SALT 2,2, 2"-(STIBILIDYNETRIS(THIO))TRIS-BUTANEDIOIC ACID HEXALITHIUM SALT... 

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