Boron trichloride

SECTION 2: Hazards identification

Emergency Overview DANGER: Toxic, corrosive liquid and gas under pressure. Harmful or fatal if inhaled. Causes eye, skin, and respiratory tract burns. May cause liver, kidney, and respiratory system damage. Self-contained breathing apparatus must be worrn by rescue workers. Odour: Pungent, irritating.

Principle Routes of Exposure

Inhalation. Swallowing. Skin absorption. Skin contact. Eye contact. EFFECTS OF A SINGLE (ACUTE) OVEREXPOSURE: INHALATION: Overexposure to vapour concentrations moderately above 5 ppm are irritating to the upper repiratory tract. Concentrations in the range of 50-100 ppm are intolerable. At higher concentration (e.g., greater than 50 ppm) causes choking, coughing, burning of the throat and severe irritation of the respiratory tract; additional there is the possiblitity of ulceration of the nose, throat, and larynx, laryngeal spasm, pulmonary edema. SKIN CONTACT: Boron trichloride gas may cause severe irritation, chemical burns with ulceration and scarring of the skin. Repeated exposure of skin to vapours may result in dermatitis. Date: Oct. 15, 2016 SKIN Prolonged or widespread skin contact with the liquid may result in the absorption of harmful ABSORPTION: amounts of material. SWALLOWING: May cause chemical burns of the mouth, throat, esophagus, and stomach with severe abdominal and chest pain. There may be nausea, vomiting, diarrhea, weakness, collapse and coma. EYE CONTACT: Exposure to the eye causes immediate pain and irritation with excess tear production and closure of the eyelids. The severity of injury depends on the concentration and duration of contact and may range from slight redness and irritation of the conjunctiva to total corneal opacification and blindness. EFFECTS OF REPEATED (CHRONIC) OVEREXPOSURE: Causes damage to the following organs: upper respiratory tract, skin, eyes. May cause damage to the following organs: kidneys, liver. Prolonged or repeated exposure to vapour may cause discoloration or erosion of the teeth, bleeding of nose and gums and ulcetration of the nasal mucosa. OTHER EFFECTS OF OVEREXPOSURE: None known.

Medical Conditions Generally Aggravated by Exposure

OVEREXPOSURE Breathing of vapour (and/or mist) may aggravate asthma and inflammatory or fibrotic pulmonary disease. The skin irritating effects of the material may aggravate an existing dermatitis. SIGNIFICANT LABORATORY DATA WITH POSSIBLE RELEVANCE TO HUMAN HEALTH HAZARD EVALUATION: None currently known. CARCINOGENICITY: Not listed as carcinogen by OSHA, NTP or IARC.