Sodium thiocyanate
SIGALD/251410 - ACS reagent, ≥98.0%
Synonym: Sodium isothiocyanate; Sodium rhodanate; Sodium rhodanide; Sodium sulfocyanate
CAS Number: 540-72-7
Empirical Formula (Hill Notation): CNNaS
Molecular Weight: 81.07
EC Number: 208-754-4
MDL Number: MFCD00011123
Linear Formula: NaSCN
Product Type: Chemical
| anion traces | chloride (Cl-): ≤0.01% |
| S2-: ≤0.001% | |
| sulfate (SO42-): ≤0.01% | |
| assay | ≥98.0% |
| cation traces | Fe: ≤2 ppm |
| heavy metals (as Pb): ≤5 ppm | |
| NH4+: ≤0.002% | |
| form | powder, crystals or chunks |
| grade | ACS reagent |
| impurities | ≤0.005% insolubles |
| ≤0.2% Na2CO3 | |
| InChI | 1S/CHNS.Na/c2-1-3;/h3H;/q |
| InChI key | VGTPCRGMBIAPIM-UHFFFAOYSA |
| mp | 287 °C (dec.) (lit.) |
| pH | 4.8 (20.1 °C, 1070 g/L) |
| Quality Level | 200 ![]() |
| SMILES string | [Na]SC#N |
| solubility | water: soluble 1,000 g/L at 20 °C |
| Application: | Undergoes nucleophilic substitution reactions with phase-transfer catalysts. |
| Packaging: | 100, 500 g in poly bottle |
| Packaging: | 2.5 kg in poly drum |
| Symbol | ![]() GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H302 + H312 + H332 - H318 - H412 |
| Precautionary statements | P261 - P280 - P280 - P301 + P312 + P330 - P305 + P351 + P338 + P310 |
| Hazard Codes | Xn |
| Risk Statements | 20/21/22-32-36-52/53 |
| Safety Statements | 13-26-36/37-46-61 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Supplemental Hazard Statements | EUH032 |
| Purity | ≥98.0% |
| mp | 287 °C (dec.) (lit.) |
| UNSPSC | 12352302 |



