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Dichlorodifluoromethane

Dichlorodifluoromethane structure

CAS No:
75-71-8
Formula:
CCl2F2
Chemical Name:
Dichlorodifluoromethane
Synonyms:
Methane,dichlorodifluoro-;Dichlorodifluoromethane;Freon 12;Algofrene Type 2;Arcton 6;Difluorodichloromethane;Electro-CF 12;Frigen 12;Genetron 12;Isceon 122;Isotron 12;Ledon 12;FC 12;R 12 (refrigerant);Arcton 12;R 12;Chlorofluorocarbon 12;F 12;CF 12;Forane 12;CFC 12;Khladon 12;FKW 12;Dichlorodifluoromethane (CCl2F2);FCC 12;F 12 (halocarbon);Fron 12;Refrigerant R 12;Carbon dichloride difluoride;Frigen R12;Dymel 12;CF 12 (halocarbon);SDD 100;Chladone 12;HC 12;FC 12 (refrigerant);62185-71-1;185009-39-6;1256919-17-1
Categories:
Organic Chemistry > Hydrocarbons and Derivatives

Description

Dichlorodifluoromethane is a liquefied gas and exists as a liquid at room temperature when contained under its own vapor pressure, or as a gas when exposed to room temperature and atmospheric pressure. The liquid is practically odorless and colorless. The gas in high concentrations has a faint etherlike odor. Dichlorodifluoromethane is noncorrosive, nonirritating, and nonflammable. Ethereal odor at .20% by volume. Shipped as a compressed gas.
Dichlorotetrafluoroethane is a colorless, nonf

Dichlorodifluoromethane Basic Attributes

Molecular Weight：

120.91

Exact Mass：

120.91

EC Number：

200-893-9

HScode：

2903772011

Characteristics

PSA：

XLogP3：

2.16

Appearance：

Dichlorodifluoromethane appears as a colorless gas having a faint ethereal odor. Shipped as a liquid confined under its own vapor pressure. Contact with the unconfined liquid can cause frostbite. Both components are noncombustible. Can asphyxiate by the displacement of air. Exposure of the closed container to prolonged heat or fire can cause it to rupture violently and rocket.

Density：

1.486 g/cm³ @ Temp: -29.8 °C

Melting Point：

-158 °C

Boiling Point：

-29.8 °C @ Press: 760 Torr

Flash Point：

11 °C

Refractive Index：

1.169

Water Solubility：

H2O: Insoluble . 0.028 g/100 mL

Storage Conditions：

2-8°C

Vapor Pressure：

Vapour pressure, kPa at 20°C: 568

Vapor Density：

4.2

Toxicity：

Inhalation-Mouse LC50: 3348000 mg/m3/ 3 hours

Flammability characteristics：

Non-combustible at normal temperature; burning produces toxic fluoride and chloride fumes

Odor：

Practically odorless ... faint, ether-like odor in high concentration

Safety Information

Hazard category：

2.2

Transport codes：

1028

wgk germany：

hazard class code：

20-59-23/25-11-39/23/24/25-23/24/25-22

safety instructions：

23-24/25-59-61-45-24-16-7-36/37

RTECS Number：

PA8200000

Marks：

Xn;N,Xi,N,Xn,T,F

Storage features：

The warehouse is ventilated, low temperature and dry; lightly loaded and unloaded; stored separately from flammable materials

Hazard note：

Irritant

Explosive characteristics：

High heat steel and explosiv

Stability/Shelf Life：

Stable. Non-flammable. May react violently with aluminium.

Precautionary statement(s)：

P210-P260-P280-P301 + P310-P311

Hazard Statements：

H225-H301 + H311 + H331-H370-H420

Toxicity

Toxicity class：

practically nontoxic

Dichlorodifluoromethane Use and Manufacturing

Methods of Manufacturing

It is prepared by reacting carbon tetrachloride and hydrogen fluoride in the presence of antimony pentachloride catalyst. This product is mainly obtained when the reflux condensation temperature is controlled to -5°C. Another production method is the direct method, which is synthesized directly from methane, chlorine, and anhydrous hydrogen fluoride in a fluidized bed reactor.

Uses

Refrigerant, aerosol propellant.

Computed Properties

Molecular Weight:120.91
XLogP3:2.3
Hydrogen Bond Acceptor Count:2
Exact Mass:119.9345117
Monoisotopic Mass:119.9345117
Heavy Atom Count:5
Complexity:30.6
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Carbon tetrachloride

Hydrofluoric acid