Details:
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Sodium thiocyanate Basic information |
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Sodium thiocyanate Chemical Properties |
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mp |
287 °C (dec.)(lit.) |
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density |
1.295 g/mL at 20 °C |
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storage temp. |
2-8°C |
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solubility |
H2O: 8 M at 20 °C, clear, colorless |
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Water Solubility |
139 g/100 mL (21 ºC) |
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Sensitive |
Hygroscopic |
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Merck |
14,9327 |
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BRN |
3594965 |
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Stability: |
Stable. Incompatible with acids, strong bases. May decompose on exposure to light. Contact with acid liberates highly toxic gas. |
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CAS DataBase Reference |
540-72-7(CAS DataBase Reference) |
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EPA Substance Registry System |
Thiocyanic acid, sodium salt(540-72-7) |
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Sodium thiocyanate Usage And Synthesis |
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Chemical Properties |
white crystalline powder |
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General Description |
Odorless white solid. Sinks and mixes with water. |
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Air & Water Reactions |
Water soluble. |
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Reactivity Profile |
Nitric acid violently oxidized a thiocyanate solution [Bretherick 1979 p. 121]. Caution should be exercised in treating a thiocyanate with an oxidizing agent such as a peroxide or chlorate as such mixtures have been known to explode. Special Hazards of Combustion Products: Irritating oxides of sulfur and nitrogen may form in fire [USCG, 1999]. Carbonyl sulfide is produced in a violent reaction by the mixture of sulfuric acid and Sodium thiocyanate. |
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Health Hazard |
Inhalation of dust causes irritation of nose and throat. Ingestion of large doses causes vomiting, extreme cerebral excitement, convulsions, and death in 10-48 hrs.; chronic poisoning can cause flu-like symptoms, skin rashes, weakness, fatigue, vertigo, nausea, vomiting, diarrhea, confusion. Contact with eyes causes irritation. Prolonged contact with skin may produce various skin eruptions, dizziness, cramps, nausea, and mild to severe disturbance of the nervous system. |
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Fire Hazard |
Special Hazards of Combustion Products: Irritating oxides of sulfur and nitrogen may form in fire. |
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Sodium thiocyanate Preparation Products And Raw materials |
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