used in drilling mud to increase alkalinity in bentonite and to neutralize acid gas
"THE LONG TERM EFFECTS OF CONTINUOUS EXPOSURE TO MOST TOXICANTS TYPICALLY ARE LARGELY UNKNOWN"
rules and regulations environmental quality board august 21`, 2010
Severe irritant. Effects from inhalation of dust or mist vary from mild irritation to serious damage of the upper respiratory tract, depending on severity of exposure. Symptoms may include sneezing, sore throat or runny nose. Severe pneumonitis may occur. Ingestion:
Corrosive! Swallowing may cause severe burns of mouth, throat, and stomach. Severe scarring of tissue and death may result. Symptoms may include bleeding, vomiting, diarrhea, fall in blood pressure. Damage may appear days after exposure. Skin Contact:
Corrosive! Contact with skin can cause irritation or severe burns and scarring with greater exposures. Eye Contact:
Corrosive! Causes irritation of eyes, and with greater exposures it can cause burns that may result in permanent impairment of vision, even blindness. Chronic Exposure:
Prolonged contact with dilute solutions or dust has a destructive effect upon tissue. Aggravation of Pre-existing Conditions:
Persons with pre-existing skin disorders or eye problems or impaired respiratory function may be more susceptible to the effects of the substance.