Formula: | ZnCl₂ |
CAS Number: | 7646-85-7 |
EC Number (EINECS): | 231-592-0 |
HS Code: | 28273930 |
UN Number: | 2331 |
IUPAC Name: | Zinc Dichloride |
Also Known As: | Butter of Zinc; Zinc(II) Chloride |
Molecular Weight, g/mol: | 136.30 |
Appearance: | White crystalline solid / powder |
Odor: | Odorless |
Melting Point, °C: | 290 (decomposes) |
Boiling Point, °C: | Sublimes at 732 |
pH (1% solution): | ~4.0 |
Purity, %: | 98–99.5 |
Grades Available: | Industrial, Battery, Laboratory, Anhydrous |
Packaging: | 25kg bags, 50kg drums, bulk |
Primary Applications
Used in fluxes for soldering, galvanizing, and tinning
Catalyst in organic synthesis and polymerization reactions
Manufacture of textile finishing and printing products
Secondary Applications
Ingredient in disinfectants and deodorants
Oilfield chemical (well completion, packer fluids)
Wood preservative and fireproofing agent
Used in batteries (dry cells, electrolytes)
End Industries Served: Chemicals, Pharmaceuticals, Textiles, Oil & Gas, Metallurgy, Wood Treatment, Batteries
Hazard Class (GHS): Corrosive to metals (Category 1), Acute Toxicity (Category 3, oral), Eye Damage (Category 1)
Hazard Statements (H-Codes):
H290: May be corrosive to metals
H301: Toxic if swallowed
H314: Causes severe skin burns and eye damage
H410: Very toxic to aquatic life with long-lasting effects
Precautionary Statements (P-Codes):
P280: Wear protective gloves/eye protection/face protection
P301 + P310: IF SWALLOWED – Immediately call a POISON CENTER/doctor
P305 + P351 + P338: IF IN EYES – rinse cautiously with water for several minutes, remove contact lenses if present
P273: Avoid release to the environment
Storage Conditions
Store in tightly closed containers in a dry, well-ventilated place
Protect from moisture (highly hygroscopic)
Keep away from incompatible substances (strong bases, oxidizers)
Transport Information
ADR/RID: Class 8, UN2331, PG III
IMDG: Class 8, UN2331, PG III
IATA: Class 8, UN2331, PG III