- Beryllium difluoride
Odorless white solid.
Manufacture of beryllium & beryllium alloys, Manufacture of glass, in nuclear reactors.
Registry Numbers and Inventories.
Japan ENCS (MITI)
Melting point, °C
553 - 555
Boiling point, °C
Vapor pressure, mmHg
20 (1127 C)
Odor Threshold Odor threshold Odorless
Solubility in water
Heat of fusion
Hazards and Protection.
Poison room locked.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with skin and eyes. Do not ingest or inhale.
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Sweep up, then place into a suitable container for disposal.
Stable under normal temperatures and pressures.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam.
Contact with metals may evolve flammable hydrogen gas.
Toxic and irritating vapor of unburned material may form in fire.
NIOSH REL: Ca Not to exceed 0.0005 mg/m3 See Appendix A OSHA PEL: TWA 0.002 mg/m3 C 0.005 mg/m3 0.025 mg/m3 [30-minute maximum peak] IDLH Ca [4 mg/m3 (as Be)]
G-A1, I-1, N-1, CP65
Hyperactive reflexes, painful muscle spasms, weakness and tetanic contractures may be noted due to fluoride induced hypocalcemia. Prenatal fluoride supplementation (2.2 mg NaF or 1 mg fluoride daily) during the last two trimesters of pregnancy has been reported to be safe.
Harmful if swallowed. May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. The toxicological properties of this substance have not been fully investigated.
May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. The toxicological properties of this substance have not been fully investigated.
Contact with skin causes irritation and possible burns, especially if the skin is wet or moist.
May cause eye irritation and possible burns.
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
USCG CHRIS Code