1,2-二氯-1,1-二氟乙烷

Description

1,2-dichloro-1,1-difluoroethane · CAS 1649-08-7 · C2H2Cl2F2. UNII K90K8VM1NQ. Boiling Point: 46.8 °C @ 760 mm Hg; Melting Point: -101.2 °C; Solubility: In water, 850 mg/l @ 24 °C.

Identification

CAS Registry Number	1649-08-7
PubChem CID	15442
Molecular formula	C2H2Cl2F2
IUPAC name	1,2-dichloro-1,1-difluoroethane
UNII (FDA)	K90K8VM1NQ

Computed Descriptors

Molecular Weight	134.94
XLogP3	2.2
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	1
Exact Mass	133.9501618
Monoisotopic Mass	133.9501618
Topological Polar Surface Area	0
Heavy Atom Count	6
Formal Charge	0

Physical & Chemical Properties

Boiling Point	46.8 °C @ 760 mm Hg
Melting Point	-101.2 °C
Solubility	In water, 850 mg/l @ 24 °C
Density	1.4163 g/cu cm @ 20 °C
Vapor Pressure	340.0 [mmHg]
Vapor Pressure	340 mm Hg @ 25 °C

Physical description & handling notes

• 1,2-dichloro-1,1-difluoroethane is a colorless odorless liquid. Nonflammable.
• Colorless liquid; [CAMEO] Almost insoluble in water; Boiling point = 46-47 deg C; [MSDSonline]
• Colorless
• When heated to decomp it emits very toxic fumes of /hydrogen chloride and hydrogen fluoride/.
• UNDER CERTAIN CONDITIONS, FLUOROCARBON VAPORS MAY DECOMPOSE ON CONTACT WITH FLAMES OR HOT SURFACES, CREATING THE POTENTIAL HAZARD OF INHALATION OF TOXIC DECOMPOSITION PRODUCTS. /FLUOROCARBONS/
• Hydroxyl radical rate constant= 1.6X10-14 cu cm/molecule-sec @ 25 °C

Regulatory Status

GHS notification summary	7.3% (3 / 41)

GHS Hazard Classification

GHS notification summary	7.3% (3 / 41)
Reported hazard statements	H319 (92.7%)

Documented Uses

• A potential substitute for some ozone depleting chlorofluorocarbons; [HSDB]
• 1,2-Dichloro-1,1- difluoroethane is a potential substitute for some ozone depleting chlorofluorocarbons and a model for other 1,1,1,2-tetrahaloethanes under consideration as chlorofluorocarbon substitutes.
• Mechanical vapor compression systems use fluorocarbons for refrigeration and air conditioning and account for ... majority of refrigeration capability in us. ... fluorocarbons are used as refrigerants in home appliances, mobile air conditioning units, retail food refrigeration systems and ... chillers. /Fluorocarbons/
• The most important commercial method of manufacturing HCFCs is the successive replacement of chlorine by fluorine using HF. /HCFCs/
• Ethane, 1,2-dichloro-1,1-difluoro-: ACTIVE
• 1,2-Dichloro-1,1-difluoroethane is not produced in commodity quantities.

Synonyms

1,2-DICHLORO-1,1-DIFLUOROETHANE; 1649-08-7; HCFC-132b; Ethane, 1,2-dichloro-1,1-difluoro-; K90K8VM1NQ; DTXSID5031393; RefChem:411575; 1,2-DCDFE; DTXCID3011393; 216-714-2; DICHLORODIFLUOROETHANE; 1,2-dichloro-1,1-difluoro-ethane; 1,1-Difluoro-1,2-dichloroethane; MFCD00042125; CF2ClCH2Cl; HSDB 6758

Frequently Asked Questions

What are the CAS number and molecular formula of 1,2-dichloro-1,1-difluoroethane?

CAS 1649-08-7; molecular formula C2H2Cl2F2; molecular weight — g/mol.

What other names is 1,2-dichloro-1,1-difluoroethane known by?

1,2-DICHLORO-1,1-DIFLUOROETHANE, 1649-08-7, HCFC-132b, Ethane, 1,2-dichloro-1,1-difluoro-, K90K8VM1NQ, DTXSID5031393.

Is 1,2-dichloro-1,1-difluoroethane classified as hazardous?

7.3% of GHS notifications report no hazard classification (3 of 41).

What are the key physical properties of 1,2-dichloro-1,1-difluoroethane?

Boiling Point: 46.8 °C @ 760 mm Hg; Melting Point: -101.2 °C; Solubility: In water, 850 mg/l @ 24 °C; Density: 1.4163 g/cu cm @ 20 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.