RD NiCrCoTiWAlMo

SECTION 2: Hazards identification

OSHA Emergency Overview DANGER! Form powdered form Colour grey Odour odourless Hazard Summary Suspect cancer hazard May cause reproductive system damage. May cause eye, skin, and respiratory tract irritation. Harmful if inhaled or ingested. May cause allergic respiratory reaction. May cause allergic skin reaction. May cause lung damage. Very toxic to aquatic organisms. May cause long-term adverse effects in the aquatic environment. Do not use water or carbon dioxide extinguishers. May react forming chromium(VI) compounds when processing thermally.

Principle Routes of Exposure

Eye contact. Skin contact. Inhalation. Ingestion. Inhalation : Inhalation of nickel compounds may cause respiratory tract irritation, cough, pneumonitis and fever. Symptoms may also include headache, dizziness and difficult breathing. Inhalation may also cause asthma, pulmonary fibrosis (increase in interstitial fibrous tissue in the lungs) and pulmonary edema (fluid in the lungs). Inhalation of cobalt may cause respiratory tract irritation with coughing, sore throat, sneezing and inflammation of the mucous membranes. Sensitization reactions may occur in previously exposed individuals. Skin : Direct skin contact may cause irritation and sensitization reactions ("nickel itch"). Symptoms may include a burning sensation, itching, and hives which may be followed by ulcers which discharge and become crusted. The skin eruptions may be delayed up to 7 days. In chronic stages, pigmented and unpigmented areas of the skin may be formed. Direct contact with cobalt may cause skin irritation and skin sensitization. Skin eruptions may occur in skin areas subjected to friction, such as elbows, ankles and neck. Eyes : Direct eye contact may produce irritation with symptoms of redness, swelling and pain. Ingestion : Ingestion of cobalt may cause vomiting and diarrhea. Chronic Exposure : Repeated or prolonged inhalation of nickel compounds may cause hypertrophic rhinitis (inflammation of the mucous membrane lining of the nasal passages) and nasal sinusitis. Repeated or prolonged contact with nickel compounds may cause sensitization and dermatitis. Prolonged or repeated inhalation of cobalt may cause respiratory irritation with a burning sensation when swallowing, headache, gastrointestinal distress, appetite and weight loss, weakness, irritability and the loss of the sense of smell. Repeated or prolonged skin contact with cobalt may cause sensitization and dermatitis. Cardiomopathy has been caused by excessive intake of cobalt. Signs and symptoms may include gastrointestinal disturbances with nausea, vomiting, diarrhea, shortness of breath, coughing, cyanosis, lowered blood pressure, rapid heart rate and death. Repeated or prolonged inhalation of trivalent chromium compounds may cause chronic respiratory effects.

Medical Conditions Generally Aggravated by Exposure

None known. Symptoms of Overexposure : No information available. IARC Group 2A: Probably carcinogenic to humans Cobalt 7440-48-4 Group 2B: Possibly carcinogenic to humans nickel powder 7440-02-0 Cobalt 7440-48-4