Ammonium thiocyanate
- CAS No.
- 1762-95-4
- Chemical Name:
- Ammonium thiocyanate
- Synonyms
- AMMONIUM THIOCYANAT;Ammoniumrhodantate;AMMONIUM THIOCYANATE 0,1 MOL/L;NA-9092;rhodanid;trans-aid;AMITROLE-T;WEEDAZOLT-L;usafek-p-433;AMMONIUM THIOCY
- CBNumber:
- CB5853210
- Molecular Formula:
- CH4N2S
- Molecular Weight:
- 76.12
- MOL File:
- 1762-95-4.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/7/9 21:58:15
| Melting point | 152-154 °C (lit.) |
|---|---|
| Boiling point | 262.85°C |
| Density | 1.3 |
| vapor pressure | <1 hPa (20 °C) |
| refractive index | 1.5300 (estimate) |
| Flash point | 190 °C |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | Solid |
| Specific Gravity | 1.305 |
| color | clear colorless or white |
| PH | 4.8-5.8 (50g/l, H2O, 20℃) |
| Odor | Odorless |
| PH Range | 4.5 - 6.0 |
| Water Solubility | 163 g/100 mL (20 ºC) |
| Sensitive | Light Sensitive & Hygroscopic |
| Merck | 14,561 |
| BRN | 3595135 |
| Exposure limits | NIOSH: IDLH 25 mg/m3 |
| Stability | Stable. Incompatible with strong acids, strong oxidizing agents. Forms explosive mixtures with lead nitrate. |
| LogP | 0.58 |
| CAS DataBase Reference | 1762-95-4(CAS DataBase Reference) |
| EPA Substance Registry System | Ammonium thiocyanate (1762-95-4) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS05,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H302+H312+H332-H318-H412 | |||||||||
| Precautionary statements | P273-P280-P301+P312-P302+P352+P312-P304+P340+P312-P305+P351+P338 | |||||||||
| Hazard Codes | Xn,Xi | |||||||||
| Risk Statements | 20/21/22-32-52/53-36/37/38 | |||||||||
| Safety Statements | 13-61-36/37-36-26-46 | |||||||||
| RIDADR | 9092 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | XK7875000 | |||||||||
| F | 3 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 28380000 | |||||||||
| Toxicity | LD50 orally in Rabbit: 500 mg/kg | |||||||||
| NFPA 704 |
|
Ammonium thiocyanate price More Price(19)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | A7149 | Ammonium thiocyanate powder | 1762-95-4 | 100G | ₹7869.78 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | A7149 | Ammonium thiocyanate powder | 1762-95-4 | 500G | ₹8757.43 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 221988 | Ammonium thiocyanate ACS reagent, ≥97.5% | 1762-95-4 | 500G | ₹3031 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 431354 | Ammonium thiocyanate 99.99% trace metals basis | 1762-95-4 | 50G | ₹2240.78 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 31120 | Ammonium thiocyanate puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99% (AT) | 1762-95-4 | 100G | ₹2424.8 | 2022-06-14 | Buy |
Ammonium thiocyanate Chemical Properties,Uses,Production
Chemical Properties
Ammonium thiocyanate is a colorless solid which absorbs moisture, becoming liquid, known as the “liquor.”
Uses
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.
Production Methods
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.
Preparation
(NH4)2S is obtained from reacting hydrogen sulfide with excess of ammonia:
H2S + 2NH3 → (NH4)2S.
Definition
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.
General Description
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.
Air & Water Reactions
Water soluble.
Reactivity Profile
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].
Health Hazard
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.
Fire Hazard
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.
Potential Exposure
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.
Shipping
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.
Incompatibilities
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 .
Waste Disposal
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.
Ammonium thiocyanate Preparation Products And Raw materials
Raw materials
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chevron_rightPreparation Products
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chevron_right| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| GLR Innovations | +91 9891111994 | New Delhi, India | 4542 | 58 | Inquiry |
| Indiana ChemPort | +91-91-2652638667 +91-7574886711 | Gujarat, India | 85 | 58 | Inquiry |
| ADVENT CHEMBIO PRIVATE LIMITED | +91-9821524116 +91-9821524116 | Mumbai, India | 353 | 58 | Inquiry |
| SYNOVA CHEMICALS | +91-9920741772 +91-9920741772 | Mumbai, India | 428 | 58 | Inquiry |
| Reenold Enterprises | +91-8208173540 +91-8208173540 | Maharashtra, India | 28 | 58 | Inquiry |
| JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
| Paras Intermediates Private Limited | +91-2228202847 +91-9820230660 | Maharashtra, India | 11 | 58 | Inquiry |
| Kronox Lab Sciences Pvt Ltd | +91-9313231074 +91-9313231074 | Gujarat, India | 240 | 58 | Inquiry |
| Shri Shanti Laboratories | +91-9799144442 +91-9571511119 | Rajasthan, India | 45 | 58 | Inquiry |
| Anand Agencies | 91-20-24454597 | Maharashtra, India | 2337 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| GLR Innovations | 58 |
| Indiana ChemPort | 58 |
| ADVENT CHEMBIO PRIVATE LIMITED | 58 |
| SYNOVA CHEMICALS | 58 |
| Reenold Enterprises | 58 |
| JSK Chemicals | 58 |
| Paras Intermediates Private Limited | 58 |
| Kronox Lab Sciences Pvt Ltd | 58 |
| Shri Shanti Laboratories | 58 |
| Anand Agencies | 58 |
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