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|Section3= }} Antimony trisulfide Sb2S3 is found in nature as the crystalline mineral stibnite and the amorphous red mineral metastibnite.〔SUPERGENE METASTIBNITE FROM MINA ALACRAN, PAMPA LARGA, COPIAPO,CHILE, Alan H Clark, THE AMERICAN MINERALOGIST. VOL.55.,I97O〕 It is manufactured for use in safety matches, military ammunition, explosives and fireworks. It also is used in the production of ruby-colored glass and in plastics as a flame retardant. Historically the stibnite form was used as a grey pigment in paintings produced in the 16th century.〔 〕 It is a semiconductor with a direct band gap of 1.8-2.5 eV. With suitable doping p and n type materials can be produced.〔Electrochemistry of Metal Chalcogenides, Mirtat Bouroushian, Springer, 2010〕 == Preparation and reactions == Sb2S3 can be prepared from the elements at temperature 500-900 °C:〔 :2Sb + 3S → Sb2S3 Sb2S3 is precipitated when H2S is passed through an acidified solution of Sb(III). This reaction has been used as a gravimetric method for determining antimony, bubbling H2S through a solution of Sb(III) compound in hot HCl deposits an orange form of Sb2S3 which turns black under the reaction conditions.〔A.I. Vogel,(1951), Quantitative Inorganic analysis, (2d edition), Longmans Green and Co〕 Sb2S3 is readily oxidised, reacting vigorously with oxidising agents.〔 It burns in air with a blue flame. It reacts with icandescence with cadmium, magnesium and zinc chlorates. Mixtures of Sb2S3 and chlorates may explode.〔Hazardous Laboratory Chemicals Disposal Guide, Third Edition,CRC Press, 2003, Margaret-Ann Armour, ISBN 9781566705677〕 In the extraction of antimony from antimony ores the alkaline sulfide process is employed where Sb2S3 reacts to form thioantimonate(III) salts (also called thioantimonite): :3Na2S + Sb2S3 → 2Na3SbS3 A number of salts containing different thioantimonate(III) ions can be prepared from Sb2S3 these include:〔Inorganic Reactions and Methods, The Formation of Bonds to Group VIB (O, S, Se, Te, Po) Elements (Part 1) (Volume 5) Ed. A.P, Hagen,1991, Wiley-VCH, ISBN 0-471-18658-9〕 :()3−, ()−, ()4−, ()6−, ()2− and ()10− "Schlippe's salt", Na3SbS4·9H2O, a thioantimonate(V) salt is formed when Sb2S3 is boiled with sulfur and sodium hydroxide. The reaction can be represented as:〔 :Sb2S3 + 3S2− + 2S → 2()3− 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「antimony trisulfide」の詳細全文を読む スポンサード リンク
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