Z

Zinc chloride

IUPAC: dichlorozinc

ZnCl2 Salts CAS 7646-85-7
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Quick Reference
Formula / NotationZnCl2
CAS Number7646-85-7
Molecular Weight136.3
Melting Point554 °F (NIOSH, 2024)
Boiling Point1350 °F at 760 mmHg (NIOSH, 2024)
Density2.91 at 77 °F (NIOSH, 2024) - Denser than water; will sink
Solubility435 % at 70 °F (NIOSH, 2024)
AppearanceZinc chloride is a white crystalline solid. It is soluble in water. It is corrosive to metals and therefore irritating to the skin, eyes and mucous membranes. It is used for preserving wood, in sol...
Also Known Asdichlorozinc; Dichlorozinc; Zinkchloride; Zinc(II) chloride; Zintrace; Zinc chloride fume; Zinc chloride (ZnCl2); Zinkchlorid; Zine dichloride; Chlorure de zinc
CategorySalts

What is Zinc chloride?

Zinc chloride (ZnCl2) is a salt that appears as Zinc chloride is a white crystalline solid. It is soluble in water. It is corrosive to metals and therefore irritating to the skin, eyes and mucous membranes. It is used for preserving wood, in sol.... It has a molecular weight of 136.3 g/mol. Its IUPAC name is dichlorozinc. Boiling point: 1350 °F at 760 mmHg (NIOSH, 2024). Melting point: 554 °F (NIOSH, 2024).

Formula & Notation

ZnCl2

IUPAC Name: dichlorozinc

Other Names / Synonyms: dichlorozinc; Dichlorozinc; Zinkchloride; Zinc(II) chloride; Zintrace; Zinc chloride fume; Zinc chloride (ZnCl2); Zinkchlorid; Zine dichloride; Chlorure de zinc

Properties & Characteristics

Appearance: Zinc chloride is a white crystalline solid. It is soluble in water. It is corrosive to metals and therefore irritating to the skin, eyes and mucous membranes. It is used for preserving wood, in sol.... Molecular formula: Cl2Zn. Molecular weight: 136.3 g/mol. Boiling point: 1350 °F at 760 mmHg (NIOSH, 2024). Melting point: 554 °F (NIOSH, 2024). Density: 2.91 at 77 °F (NIOSH, 2024) - Denser than water; will sink. Solubility: 435 % at 70 °F (NIOSH, 2024). Vapor pressure: 0 mmHg (approx) (NIOSH, 2024).

Physical Data

PropertyValue
Melting Point554 °F (NIOSH, 2024)
Boiling Point1350 °F at 760 mmHg (NIOSH, 2024)
Density2.91 at 77 °F (NIOSH, 2024) - Denser than water; will sink
Molecular Weight136.3
Solubility435 % at 70 °F (NIOSH, 2024)
AppearanceZinc chloride is a white crystalline solid. It is soluble in water. It is corrosive to metals and therefore irritating to the skin, eyes and mucous membranes. It is used for preserving wood, in sol...

Uses & Applications

Used in food preservation, water treatment, chemical synthesis, fertilizers, and pharmaceutical applications.

Safety Information

Irritant or toxic depending on specific salt. Some salts are oxidising agents or toxic to aquatic environments. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Zinc chloride
Formula ZnCl2
CAS Number 7646-85-7
Molecular Weight 136.3
Category Salts
Synonyms dichlorozinc; Dichlorozinc; Zinkchloride; Zinc(II) chloride; Zintrace; Zinc chloride fume; Zinc chloride (ZnCl2); Zinkchlorid; Zine dichloride; Chlorure de zinc

Frequently Asked Questions

Zinc chloride (ZnCl2) is a salt that appears as Zinc chloride is a white crystalline solid. It is soluble in water. It is corrosive to metals and therefore irritating to the skin, eyes and mucous membranes. It is used for preserving wood, in sol.... It has a molecular weight of 136.3 g/mol. Its IUPAC name is dichlorozinc. Boiling point: 1350 °F at 760 mmHg (NIOSH, 2024). Melting point: 554 °F (NIOSH, 2024).

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.