싸이오사이안산암모늄(로단암몬)

싸이오사이안산암모늄(로단암몬) 속성

싸이오사이안산암모늄(로단암몬) MSDS

Ammonium thiocyanate

싸이오사이안산암모늄(로단암몬) C화학적 특성, 용도, 생산

화학적 성질

Ammonium thiocyanate is a colorless solid which absorbs moisture, becoming liquid, known as the “liquor.”

용도

Colorless deliquescent crystals made by boiling an aqueous solution of ammonium cyanide with sulfur or polysulfides. It must be kept in a well-sealed container. The principal use for ammonium thiocyanate was in gold-toning formulas, but it was also used in a 5 percent solution to dissolve gelatin in overexposed carbon prints.

생산 방법

Ammonium thiocyanate (plus ammonium sulfide) [CAS: 12135-76-1] may be made by reaction of ammonia and carbon disulfide, a reaction which probably accounts for the presence of ammonium thiocyanate in the products of the destructive distillation of coal. This reaction corresponds to the formation of ammonium cyanate from ammonia and carbon dioxide.

제조 방법

(NH₄)₂S is obtained from reacting hydrogen sulfide with excess of ammonia:
H₂S + ₂NH₃ → (NH₄)₂S.

정의

ammonium thiocyanate: A colourless, soluble crystalline compound,NH₄NCS. It is made by theaction of hydrogen cyanide on ammoniumsulphide or from ammoniaand carbon disulphide in ethanol. Onheating, it turns into its isomerthiourea, SC(NH₂)₂. Its solutions givea characteristic blood-red colour withiron(III) compounds and so are employedas a test for ferric iron. Ammoniumthiocyanate is used as arapid fixative in photography and asan ingredient in making explosives.

일반 설명

Ammonium thiocyanate is a colorless crystalline solid. Ammonium thiocyanate is soluble in water. The primary hazard is the threat posed to the environment. Immediate steps should be taken to limit its spread to the environment. Ammonium thiocyanate is used in chemical analysis, in photography, as a fertilizer, and for many other uses.

공기와 물의 반응

Water soluble.

반응 프로필

Ammonium thiocyanate can release ammonia vapors if mixed with a chemical base or with an acid. Violent or explosive reactions have occurred when thiocyanates are mixed with oxidizing agents (such as chlorates(potassium chlorate), nitrates, nitric acid, and peroxides). Nitric acid violently oxidized a thiocyanate solution [Bretherick 1979 p. 121]. An explosion of guanidine nitrate demolished an autoclave built to withstand 50 atmospheres, in which Ammonium thiocyanate was being made from Ammonium thiocyanate and lead nitrate [C. Angew. Chem. 49:23 1936].

건강위험

Inhalation of dust causes irritation of nose and throat. Ingestion causes dizziness, cramps, nervous disturbances. Dust irritates eyes. Can be absorbed through skin; prolonged contact may produce various skin eruptions, dizziness, cramps, nausea, and mild to severe disturbance of the nervous system.

화재위험

Special Hazards of Combustion Products: Decomposes to form ammonia, hydrogen sulfide, and hydrogen cyanide. Oxides of nitrogen may also form. All of these products are toxic.

Safety Profile

Poison by ingestion and intraperitoneal routes. Human systemic effects by ingestion: hallucinations and distorted perceptions, nausea or vomiting, and other gastrointestinal effects. See also THIOCYANATES. When heated to decomposition it emits toxic fumes of NH3, NOx, SO,, and CN-. Incompatible with KClO3 and mixtures with Pb(NO3)2.

잠재적 노출

It has many uses in making matches, fabric processing; metals processing; chemical manufacturing, electroplating; zinc coating; liquid rocket propellents, fabric dyeing, polymerization catalyst, in photography. Used as a laboratory chemical. May be used as an agricultural chemical: herbicides, weed killers, defoliants.

운송 방법

UN2672 Ammonia solutions, relative density between 0.880 and 0.957 at 15 C in water, with . 10 % but not . 35 % ammonia, Hazard class: 8; Labels: 8- Corrosive material. UN3082 Environmentally hazardous substances, liquid, n.o.s., Hazard class: 9; Labels: 9- Miscellaneous hazardous material, Technical Name Required. UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.

Purification Methods

Crystallise it three times from dilute HClO4 to give material optically transparent at wavelengths longer than 270nm. It has also been crystallised from absolute MeOH or from acetonitrile.

비 호환성

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Acts as an acid; incompatible with lead nitrate, chlorates, nitric acid, acid, acid fumes. In the presence of moisture, this chemical is corrosive to brass, copper, iron. Ammonium thiocyanate liquor can release ammonia vapors if mixed with a chemical base or with an acid. Violent or explosive reactions have occurred when thiocyanates are mixed with oxidizing agents . Nitric acid violently oxidized a thiocyanate solution . An explosion of guanidine nitrate demolished an autoclave built to withstand 50 atmospheres, in which it was being made from ammonium thiocyanate and lead nitrate .

폐기물 처리

Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal. Slowly add to large container of water. Stir in slight excess of soda ash. Decant or siphon liquid from sludge, neutralize with HCl and flush to sewer. Sludge may be landfilled.

싸이오사이안산암모늄(로단암몬) 준비 용품 및 원자재

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싸이오사이안산암모늄(로단암몬) 공급 업체

공급자	전화	이메일	국가	제품 수	이점
ShanDong Look Chemical Co.,Ltd.	+8617653113219	sales01@sdlookchemical.com	China	2739	58
Hebei Mojin Biotechnology Co., Ltd	+8613288715578	sales@hbmojin.com	China	12457	58
Hebei Yanxi Chemical Co., Ltd.	+8617531190177	peter@yan-xi.com	China	5993	58
Hebei Guanlang Biotechnology Co,.LTD	+8619930503252	daisy@crovellbio.com	China	5964	58
Hebei Dangtong Import and export Co LTD	+8615632927689	admin@hbdangtong.com	China	991	58
Henan Bao Enluo International TradeCo.，LTD	+86-17331933971 +86-17331933971	deasea125996@gmail.com	China	2503	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	7613	58
Shandong Juchuang Chemical Co., LTD	+86-18885615001 +86-18885615001	admin@juchuangchem.com	China	387	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21695	55
Nanjing Finetech Chemical Co., Ltd.	025-85710122 17714198479	sales@fine-chemtech.com	CHINA	885	55

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