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| Sodium thiocyanate, also known as sodium cyanosulfide, has the structural formula Na—S—C≡N. It is produced by reacting sodium cyanide with sulfur or as a byproduct of coke oven gas desulfurization. Its chemical formula is NaSCN, with a molecular weight of 81.07. It appears as a white crystalline powder that readily absorbs moisture in air. The product containing two molecules of crystallization water forms white needle-like crystals. Its relative density is 1.735. Melting point: 287°C. Refractive index: 1.625. Soluble in water, ethanol, acetone, and other solvents. Its aqueous solution is neutral. Reacts with iron salts to form blood-red ferric thiocyanate; does not react with ferrous salts. Toxic. Store and transport in moisture-proof conditions. Used as a solvent for polyacrylonitrile fiber spinning, a developing agent for color motion picture film, and a chemical analysis reagent. | |||||||||
540-72-7
Boss Chemical
540-72-7
| Sodium thiocyanate Basic information | |
| Product Name: | Sodium thiocyanate |
| CAS: | 540-72-7 |
| MF: | CNNaS |
| MW: | 81.07 |
| EINECS: | 208-754-4 |
| Mol File: | 540-72-7.mol |
| Sodium thiocyanate Chemical Properties | |
| Melting point | 287 °C (dec.) (lit.) |
| Boiling point | >400° |
| bulk density | 800-1000kg/m3 |
| density | 1.295 g/mL at 20 °C |
| vapor pressure | <1 hPa (20 °C) |
| refractive index | 1.545 |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 8 M at 20 °C, clear, colorless |
| form | Solid |
| color | White |
| PH | 6-8 (100g/l, H2O, 20℃) |
| Odor | Odorless |
| Water Solubility | 139 g/100 mL (21 ºC) |
| Sensitive | Hygroscopic |
| Merck | 149,327 |
| BRN | 3594965 |
| Exposure limits | NIOSH: IDLH 25 mg/m3 |
| Stability: | Stable. Incompatible with acids, strong bases. May decompose on exposure to light. Contact with acid liberates highly toxic gas. |
| Cosmetics Ingredients Functions | HAIR CONDITIONING |
| InChIKey | VGTPCRGMBIAPIM-UHFFFAOYSA-M |
| LogP | 0.58 |
| CAS DataBase Reference | 540-72-7(CAS DataBase Reference) |
| EPA Substance Registry System | Sodium thiocyanate (540-72-7) |
| Absorption | cut-off at 276nm in H2O at 8M |
Items | Standard(HG/T3812-2006) | Check result |
Content % wt Min≥ | 99 | 99.24 |
Appearance | White crystilline | White crystilline |
PH Value(50g/l Solution) | 6-8 | 7.1 |
Chloride % Max ≤ | 0.02 | 0.014 |
Sulfate % Max ≤ | 0.02 | 0.012 |
Ignition Residue Max ≤ | 0.02 | 0.015 |
Insoluble substance Max %≤ | 0.005 | 0.0012 |
Heavy Metal(Pb)%Max ≤ | 0.002 | 0.002 |
Iron(Fe)% Max ≤ | 0.0002 | 0.00007 |
Moisture%≤ | 1.0 | 0.66 |
