D

Dichloroacetic acid

IUPAC: 2,2-dichloroacetic acid

C2H2Cl2O2 Acids CAS 79-43-6
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Formula / NotationC2H2Cl2O2
CAS Number79-43-6
Molecular Weight128.94
Melting Point49.5 °F (NTP, 1992)
Boiling Point381 °F at 760 mmHg (NTP, 1992)
Density1.563 at 68 °F (NTP, 1992) - Denser than water; will sink
Solubilitygreater than or equal to 100 mg/mL at 59 °F (NTP, 1992)
AppearanceDichloroacetic acid appears as a colorless crystalline solid melting at 49 °F. Corrosive to metals and tissue.
Also Known As2,2-dichloroacetic acid; 79-43-6; 2,2-Dichloroacetic acid; Dichloracetic acid; Acetic acid, dichloro-; Bichloracetic acid; Dichloroethanoic acid; Urner's liquid; Dichlorethanoic acid; Bichloroacetic Acid
CategoryAcids

What is Dichloroacetic acid?

Dichloroacetic Acid can cause cancer, developmental toxicity and male reproductive toxicity according to The Environmental Protection Agency (EPA).

Formula & Notation

C2H2Cl2O2

IUPAC Name: 2,2-dichloroacetic acid

Other Names / Synonyms: 2,2-dichloroacetic acid; 79-43-6; 2,2-Dichloroacetic acid; Dichloracetic acid; Acetic acid, dichloro-; Bichloracetic acid; Dichloroethanoic acid; Urner's liquid; Dichlorethanoic acid; Bichloroacetic Acid

Properties & Characteristics

Appearance: Dichloroacetic acid appears as a colorless crystalline solid melting at 49 °F. Corrosive to metals and tissue.. Molecular formula: C2H2Cl2O2. Molecular weight: 128.94 g/mol. Boiling point: 381 °F at 760 mmHg (NTP, 1992). Melting point: 49.5 °F (NTP, 1992). Density: 1.563 at 68 °F (NTP, 1992) - Denser than water; will sink. Solubility: greater than or equal to 100 mg/mL at 59 °F (NTP, 1992). Vapor pressure: 1 mmHg at 111 °F ; 5 mmHg at 157.6 °F (NTP, 1992). LogP: 0.9.

Physical Data

PropertyValue
Melting Point49.5 °F (NTP, 1992)
Boiling Point381 °F at 760 mmHg (NTP, 1992)
Density1.563 at 68 °F (NTP, 1992) - Denser than water; will sink
Molecular Weight128.94
Solubilitygreater than or equal to 100 mg/mL at 59 °F (NTP, 1992)
AppearanceDichloroacetic acid appears as a colorless crystalline solid melting at 49 °F. Corrosive to metals and tissue.

Uses & Applications

Used in industrial chemical synthesis, fertilizer production, battery electrolytes, metal processing, and laboratory acid-base reactions.

Safety Information

Corrosive. Causes severe burns to skin, eyes, and respiratory tract. Wear appropriate PPE including gloves, goggles, and lab coat. Consult SDS before use.

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

Key Facts

Term Dichloroacetic acid
Formula C2H2Cl2O2
CAS Number 79-43-6
Molecular Weight 128.94
Category Acids
Synonyms 2,2-dichloroacetic acid; 79-43-6; 2,2-Dichloroacetic acid; Dichloracetic acid; Acetic acid, dichloro-; Bichloracetic acid; Dichloroethanoic acid; Urner's liquid; Dichlorethanoic acid; Bichloroacetic Acid

Frequently Asked Questions

Dichloroacetic Acid can cause cancer, developmental toxicity and male reproductive toxicity according to The Environmental Protection Agency (EPA).

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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.