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1,1,2,2-Tetrachloroethane

Also known as: 1,1,2,2-tetrachloroethane, 1,1,2,2-tetrachlorethan, 1,1,2,2-tetrachloraethan, 1,1,2,2-tetrachloorethaan, Bonoform, Cellon, Westron, acetylene tetrachloride, s-Tetrachloroethane, sym-tetrachloroethane, tetrachloroethane, MFCD00000848, EINECS 201-197-8, Ethane,1,1,2,2-tetrachloro, (CHCl2)2, 1,1,2,2-czterochloroetan(polish)

1,1,2,2-Tetrachloroethane (CAS 79-34-5) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C2H2Cl4 and a molecular weight of 167.849 g/mol. Key properties include a melting point of -43 °C, a boiling point of 142.0±8.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 42.6±15.8 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
79-34-5
Jingsj CID
J-38276-3
Molecular Formula
C2H2Cl4
Molecular Weight
167.849 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026
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Physicochemical Properties

Melting Point-43 °C
Boiling Point142.0±8.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point42.6±15.8 °C
Exact Mass165.891068
LogP2.17
Additional Property5.8 (vs air)
Vapor Pressure7.1±0.3 mmHg at 25°C
Refractive Index1.480
Additional Property0.3 g/100 mL (25 ºC)

GHS Safety & Compliance

Flammable / Acute Toxicity / Health HazardSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H301 — Toxic if swallowed
  • H331 — Toxic if inhaled
  • H310
  • H370 — Causes damage to organs
  • H412 — Harmful to aquatic life with long lasting effects

Frequently Asked Questions

What is the CAS number of 1,1,2,2-Tetrachloroethane?

The CAS number of 1,1,2,2-Tetrachloroethane is 79-34-5.

What are the molecular formula and molecular weight of 1,1,2,2-Tetrachloroethane?

1,1,2,2-Tetrachloroethane has molecular formula C2H2Cl4 and molecular weight 167.849 g/mol.

Is 1,1,2,2-Tetrachloroethane hazardous?

1,1,2,2-Tetrachloroethane has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H331 — Toxic if inhaled.

What are the upstream and downstream products of 1,1,2,2-Tetrachloroethane?

For 1,1,2,2-Tetrachloroethane, Upstream Products: trans-1,2-Dichloroethylene, Acetylene, (Z)-1,2-Dichloroethene; Downstream Products: 1,3-Indandione, 2-Acetyl-1,3-indanedione, 2-Chloro-1,1,1-trifluoroethane.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1,1,2,2-Tetrachloroethane (CAS 79-34-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38276-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.