Sodium cyanide (NaCN) is a highly toxic white crystalline compound with a faint bitter almond odor. It is highly soluble in water (370 g/L at 20°C), producing strongly alkaline solutions (pH 11-12). As a source of cyanide ions (CN-), it is the most widely used reagent in the gold mining industry for the cyanidation leaching process, achieving gold extraction efficiencies exceeding 95%.
Available in powder, granular, and briquette forms, sodium cyanide is supplied in both 98% and 95% purity grades. Briquette form is preferred by many mining operations due to slower dissolution rates, which improve handling safety and reduce dust generation. We supply sodium cyanide strictly to verified industrial buyers with proper import permits and end-use declarations.
Important: End-use declaration, import license, and hazardous materials handling permit are mandatory for all orders. We verify all documentation before accepting any order. Sodium cyanide is regulated under international conventions and national laws.
| Molecular Formula | NaCN |
| Molecular Weight | 49.01 g/mol |
| Appearance | White crystalline powder, granules, or briquettes |
| Odor | Faint bitter almond odor (due to trace HCN) |
| Density | 1.60 g/cm3 |
| Melting Point | 563.7°C |
| Boiling Point | 1,496°C |
| Solubility in Water | 370 g/L at 20°C (48 g/100 mL at 10°C) |
| pH (10% solution) | 11-12 (strongly alkaline) |
| Vapor Pressure | 0.13 kPa at 817°C |
| Crystal Structure | Cubic crystal system |
| Product Name | Sodium Cyanide |
| CAS Number | 143-33-9 |
| EINECS Number | 205-599-4 |
| HS Code | 28371110 |
| Purity (NaCN) | ≥ 98% (Premium) / ≥ 95% (Standard) |
| Sodium Hydroxide (NaOH) | ≤ 0.5% |
| Sodium Carbonate (Na2CO3) | ≤ 0.5% |
| Moisture | ≤ 0.5% |
| Chloride (Cl-) | ≤ 0.05% |
| Sulfide (S2-) | ≤ 0.02% |
| Iron (Fe) | ≤ 0.005% |
| Lead (Pb) | ≤ 0.005% |
| Form | Powder / Granular / Briquette |
| UN Number | UN 1689 |
| Hazard Class | 6.1 (Toxic Substance) |
| Packing Group | I |
| Package Type | Sealed steel drum with inner PE bag, tamper-proof |
| Net Weight | 50 kg / 500 kg / 1000 kg (wooden box) |
| Container Loading | ~13.5 MT per 20ft (50 kg drums) / ~20 MT per 20ft (1000 kg boxes) |
| Labeling | Class 6.1 hazard label, UN 1689 marking, "Toxic" warning |
| Security | Tamper-evident seals, chain-of-custody documentation |
Sodium cyanide is extremely toxic (Class 6.1, Packing Group I). Oral LD50 in rats is 6.4 mg/kg. Inhalation, ingestion, or skin contact with NaCN or its solutions can be rapidly fatal. Cyanide releases deadly hydrogen cyanide (HCN) gas on contact with acids — even weak acids like carbonated water. Proper PPE (respirators, chemical-resistant gloves, eye protection), emergency cyanide antidote kits, and strict ventilation protocols are mandatory.
Compliance requirements for purchase:
Q: What forms of sodium cyanide do you supply?
We supply powder, granular, and briquette forms. Briquettes are increasingly popular for mining operations as they dissolve more slowly, reducing dust and improving safety during handling and dissolution.
Q: What is the minimum order quantity?
MOQ is typically 5 MT for verified industrial buyers. Smaller quantities may be considered for legitimate industrial end-users with proper documentation.
Q: How long does delivery take?
Due to regulatory verification, documentation processing, and dangerous goods shipping arrangements, lead time is typically 4-6 weeks from order confirmation.
Q: Can you supply to any country?
No. Many countries strictly regulate or prohibit sodium cyanide import. We verify destination country regulations and buyer credentials before accepting any order. We do not supply to sanctioned regions or unverified buyers.
