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Zinc chloride

CAS Number
7646-85-7
EC Number
231-592-0
Chemical Formula
Cl2Zn
Molecular Weight
136.3 g/mol

Description

Zinc chloride (CAS 7646-85-7 ) is an inorganic salt used across industrial manufacturing as a flux agent, catalyst, and antimicrobial preservative. Its high solubility and reactivity with metal oxides make it a practical choice for processes requiring surface activation. In textile and paper manufacturing, these solutions are used to activate and mercerize fibers, improving dye uptake and dimensional stability in finished goods. It functions as a Lewis acid catalyst in organic synthesis, facilitating Friedel-Crafts alkylations. This chemical is essential in reactions where a strong electrophilic promoter is required. Water treatment operations use it as a coagulation aid and biocide to control microbial growth in industrial cooling systems and process water. In leather processing, it serves as a preservative and tanning auxiliary, helping to stabilize hides during intermediate processing stages. This versatility makes it a staple in heavy industrial applications and specialized chemical manufacturing. The product is supplied as anhydrous powder, granules, and concentrated aqueous solution, with solution concentrations typically ranging from 50% to 70% by weight. This variety allows for precise dosing in diverse manufacturing environments. Standard grades include technical, pharmaceutical ( USP / BP ), and reagent-grade material to meet the specifications of different end markets. These quality standards ensure the material is suitable for its intended industrial or medical use. Bulk quantities are available for industrial buyers, with smaller packaged formats supplied for laboratory and pharmaceutical procurement. We ensure consistent supply chains for all grades of this essential inorganic compound. Contact us for supply of Zinc chloride Request Quote

Other Names (Synonyms)

ZnCl₂ | ZnCl2 | zinc(II) chloride | butter of zinc | Zintrace

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point290 °C
Boiling Point732 °C
Density2.907 g/cm³ @ Temp: 25 °C
Flash Point732°C
AppearanceWhite, granular, deliquescent crystals or crystalline powder. A 10% solution is acid to litmus. Soluble in water, alcohol, glycerol, and ether.
Colorwhite
Odorwh. cubic cryst., odorless
Formcrystalline
Water Solubility432 g/100 mL (25 ºC)
Vapor Pressure1 mm Hg ( 428 °C)
pH5 (100g/l, H2O, 20℃)

Safety & Handling

Danger
GHS05· CorrosiveGHS07· IrritantGHS09· EnvironmentGHS08· Health HazardGHS06· Toxic

Hazard Statements

H302Harmful if swallowed
H310Fatal in contact with skin
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H330Fatal if inhaled
H332Harmful if inhaled
H335May cause respiratory irritation
H341Suspected of causing genetic defects
H361Suspected of damaging fertility or the unborn child
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P262Do not get in eyes, on skin, or on clothing.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P284In case of inadequate ventilation wear respiratory protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P320Specific treatment is urgent (see … on this label).
P321Specific treatment (see … on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
P391Collect spillage.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P316Get emergency medical help immediately.
P364Take off immediately all contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P331Rinse mouth. Do NOT induce vomiting.
P354IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code28273600
UN Number2924
ADR Class3
Packing GroupI
Storage Class8B - Non-combustible corrosive hazardous materials
WGK (Germany)2