Ammonium Thiocyanate

Ammonium Thiocyanate

CAS Number:1762‑95‑4

Synonyms:Ammonium thiocyanate; Ammonium rhodanide; Ammonium sulfocyanide

Chemical Formula:NH₄SCN

Molecular Weight:76.12 g/mol

Product Introduction

A colorless, hygroscopic crystalline solid. Available in ACS/ISO/tech‑grade (≥98 % purity). Commonly used in analytical chemistry (e.g., Fe³⁺ detection), organic synthesis (thiocyanation), dyeing, photography, polymerization catalysis, herbicide intermediates, and silver halide dissolution

Get Quote

Physical & Chemical Properties

Property Value
Appearance Colorless crystalline solid
Density ≈1.305 g/cm³ @20 °C
Melting Point 149–152 °C
Decomposition ~170 °C
Solubility (H₂O) ~128–1600 g/L (varies with temp)
pH (aqueous) ~4.0–5.5
Vapor Pressure <0.1 hPa @20 °C

Applications

  • Analytical chemistry: Fe³⁺ colorimetric tests; silver/mercury assays
  • Organic synthesis & dyes: thiocyanation, herbicide intermediates, dye processes
  • Photography: gelatin/halide dissolution agent
  • Polymer/catalysis: polymerization catalyst, silver halide processing

Safety & Handling

  • Harmful if swallowed, inhaled, or absorbed (GHS: H302/H312/H332). Causes serious eye damage (H318) and is harmful to aquatic life (H412). Irritant—dust may irritate eyes/respiratory tract. On contact with acids, it liberates toxic gases. Store sealed in cool, dry place (<15 °C), away from acids; use PPE and ventilation

Products Category

+91 9867824846
Enquiry Now