DIBROMODIFLUOROMETHANE Property

Melting point:

-141 °C

Boiling point:

24.5 °C

Density 

2.297 g/mL at 25 °C(lit.)

vapor density 

7.24 (vs air)

vapor pressure 

12.79 psi ( 20 °C)

refractive index 

1.398-1.402

Flash point:

None

storage temp. 

2-8°C

solubility 

Soluble in acetone, alcohol, benzene, and ether (Weast, 1986)

form 

Colorless liquid or gas

Water Solubility 

Insoluble

BRN 

1732515

Henry's Law Constant

1.72 x 10^-2 atm?m³/mol at 26 °C (static headspace-GC, Saini et al., 2002)

Exposure limits

NIOSH REL: TWA 100 ppm (860 mg/m³), IDLH 2,000 ppm; OSHA PEL: TWA 100 ppm.

CAS DataBase Reference

75-61-6(CAS DataBase Reference)

NIST Chemistry Reference

Methane, dibromodifluoro-(75-61-6)

EPA Substance Registry System

Dibromodifluoromethane (75-61-6)

Safety

Hazard Codes 

Xi,N

Risk Statements 

36/37/38-59

Safety Statements 

37/39-26-59

RIDADR 

1941

WGK Germany 

3

RTECS 

PA7525000

Hazard Note 

Irritant

HazardClass 

9

PackingGroup 

III

HS Code 

29034700

Hazardous Substances Data

75-61-6(Hazardous Substances Data)

Toxicity

A 15-min exposure to 6,400 and 8,000 ppm were fatal to rats and mice, respectively (Patnaik, 1992).

IDLA

2,000 ppm

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

H420Harms public health and the environment by destroying ozone in the upper atmosphere

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P502Refer to manufacturer/supplier for information on recovery/recycling

DIBROMODIFLUOROMETHANE Chemical Properties,Usage,Production

Description

Difluorodibromomethane is a colorless heavy liquid or gas (above 24℃/76°F) with a characteristic odor.Molecular weight=209.83; Boiling point=24℃; Freezing/Melting point=-146℃; Vapor pressure=620 mmHg.Hazard Identification (based on NFPA-704 M Rating System):Health 1, Flammability 0, Reactivity 1. Insoluble in water.

Chemical Properties

clear colorless to pale yellow liquid

Physical properties

Colorless liquid or gas with a characteristic odor

Uses

Synthesis of dyes; quaternary ammonium compounds; pharmaceuticals; fire-extinguishing agent.

Uses

Fire-extinguishing agent

General Description

DIBROMODIFLUOROMETHANE is a colorless, nonflammable liquid. DIBROMODIFLUOROMETHANE may cause illness from ingestion and may be irritating to skin. If exposed to high temperatures DIBROMODIFLUOROMETHANE may emit toxic fumes. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Since DIBROMODIFLUOROMETHANE is a liquid DIBROMODIFLUOROMETHANE can easily penetrate the soil and contaminate groundwater and nearby streams. DIBROMODIFLUOROMETHANE is used as a fire extinguishing agent.

Reactivity Profile

DIBROMODIFLUOROMETHANE is incompatible with the following: Chemically-active metals such as sodium, potassium, calcium, powdered aluminum, zinc & magnesium .

Health Hazard

Inhalation of material may be harmful. Contact may cause burns to skin and eyes. Inhalation of Asbestos dust may have a damaging effect on the lungs. Fire may produce irritating, corrosive and/or toxic gases. Some liquids produce vapors that may cause dizziness or suffocation. Runoff from fire control may cause pollution.

Fire Hazard

Some may burn but none ignite readily. Containers may explode when heated. Some may be transported hot.

Safety Profile

Mddly toxic by inhalation. A non-flammable liquid. When heated to decomposition it emits very toxic fumes of Brand F-

Potential Exposure

This material is used as a fire-extinguishing agent and in making dyes and pharmaceuticals.

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit. Iffrostbite has occurred, seek medical attention immediately;do NOT rub the affected areas or flush them with water. Inorder to prevent further tissue damage, do NOT attempt toremove frozen clothing from frostbitten areas. If frostbitehas NOT occurred, immediately and thoroughly wash contaminated skin with soap and water.

storage

Color Code—Green: General storage may be used.Difluorodibromomethane must be stored to avoid contactwith chemically active metals, such as sodium, potassium,calcium, powdered aluminum, zinc, and magnesium sinceviolent reactions occur. Store in tightly closed containers in acool, well-ventilated area away from heat.

Shipping

This compound does not require a shipping label.It falls in Hazard Class 9 and Packing III. The symbol “A”restricts the application of requirements of this subchapterto materials offered or intended for transportation by aircraft, unless the material is a hazardous substance or a hazardous waste.

Incompatibilities

Reacts with chemically active metals,such as sodium, potassium, calcium, powdered aluminum,zinc, magnesium. Attacks some plastics, rubbers, andcoatings.