White solid, odorless.
Manufacture pigments, color lakes, glass, mordant for acid dyes, weighting and dyeing textile fabrics, in aluminum refining, as pesticide, boiler compound for softening water, tanning and finishing leather.
Registry Numbers and Inventories.
EC Index Number
R 20 25
Mutagen; Reproductive Effector
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Vapor pressure, mmHg
115 (-83 C)
Approximately zero (3)
Solubility in water
Heat of fusion
Hazards and Protection.
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Wear appropriate chemical protective clothing.
Wear positive pressure self-contained breathing apparatus.
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Do not use water. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Cover solids with a plastic sheet to prevent dissolving in rain or fire fighting water. Dike surface flow using soil, sand bags, foamed polyurethane, or foamed concrete. Water spill: Use natural barriers or oil spill control booms to limit spill travel. Use natural deep water pockets, excavated lagoons, or sand bag barriers to trap material at bottom. Remove trapped material with suction hoses.
May react violently with BrF3 and 2-furan percarboxylic acid in its anhydrous form.
When heated to decomposition it emits toxic fumes of hydrogen chloride.
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use foam, dry chemical, or carbon dioxide. Keep run-off water out of sewers and water sources.
Contact with metals may evolve flammable hydrogen gas.
When heated to decompose it emits toxic fumes of chloride.
OSHA PEL: TWA 0.5 mg/m3 NIOSH REL: TWA 0.5 mg/m3 *Note: PEL and REL also applies to other soluble Ba cmpds (as Ba) except Barium sulfate. NIOSH IDLH: 50 mg/m3 (as Ba)
Initial feelings of numbness and tingling occur around the mouth, face, and neck progressing to limb paralysis. This may progress to involve muscles of respiration. Speech is often lost or impaired as the tongue and pharynx are affected. Seizures may occur with acute intoxication.
Nausea, vomiting, diarrhea, and abdominal pain may develop.
Respiratory failure may occur if the paralysis affects the muscles of respiration. Dyspnea and bronchoconstriction have occurred after inhalation.
Mydriasis may be present early in the course. Redness, pain.
If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. MMEDIATELY transport the victim to a hospital.
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.
2827 39 80
Std. Transport #