A colorless gas with a faint ethereal odor.
The main use is in the production of poly(vinyl fluoride).
Registry Numbers and Inventories.
R 12 40
S 9 16 23 36/37
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
18400 (25 C)
Vapor density (air=1)
0.707 g/cm3 (20 C)
Solubility in water
Partition coefficient, pKow
Heat of vaporization
Heat of combustion
Hazards and Protection.
Store and handle in accordance with all current regulations and standards. Subject to storage regulations: U.S. OSHA 29 CFR 1910.101. Avoid heat, flames, sparks and other sources of ignition.
A B1 D2A
Store and handle in accordance with all current regulations and standards. Subject to storage regulations: U.S. OSHA 29 CFR 1910.101.
Wear appropriate clothing to prevent any reasonable probability of skin contact. Wear eye protection to prevent any possibility of eye contact.
Maximum concentration for use: 50 ppm; Respirator class(es): any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s). Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister. Any powered, air-purifying respirator with a tight-fitting facepiece and organic vapor cartridge(s). Any self-contained breathing apparatus with a full facepiece. Any supplied-air respirator with a full facepiece.
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.
Sensitive to many oxidants.
Dangerous when heated to decomposition, emit highly toxic fumes.
Upper exp. limit, %
Lower exp. limit, %
Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Ignites in presence of heat or source of ignition. Flammable, ddangerous fire risk.
Vapor is heavier than air and may travel considerable distance to a source of ignition and flash back.
Toxic hydrogen fluoride gas is generated in a fire.
NIOSH REL: TWA 1 ppm C 5 ppm use 1910.1017
G-A2, I-2A, N-2, CP65
The toxological properties of this substance have not been fully investigated.
Ingestion of a gas is unlikely.
May cause irritation, difficulty breathing, headache, dizziness, blurred vision.
May cause irritation, blurred vision.
The possible benefit of early removal of some ingested material by cautious gastric lavage must be weighed against potential complications of bleeding or perforation. Activated charcoal activated charcoal binds most toxic agents and can decrease their systemic absorption if administered soon after ingestion. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists. Pesticides - remove contaminated clothing and jewelry. Wash the skin, including hair and nails, vigorously; do repeated soap washings. Discard contaminated clothing. Irritation - treat dermal irritation or burns with standard topical therapy
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.