Zinc Concentrate

2.1 Classification of the substance or mixture

Health Physical Environmental Acute Toxicity (Oral, Inhalation) – Does not meet criteria Does not meet criteria for Aquatic Toxicity – Skin Corrosion/Irritation – Does not meet criteria any Physical Hazard Long Term - Category 3 Eye Damage/Eye Irritation – Does not meet criteria Respiratory or Skin Sensitization – Does not meet criteria Mutagenicity – Does not meet criteria Carcinogenicity – Category 1 Reproductive Toxicity – Category 1A Specific Target Organ Toxicity: Acute Exposure – Does not meet criteria Chronic Exposure – Does not meet criteria LABEL:

Signal word

DANGER

Precautionary statements

DANGER! May cause cancer through inhalation of dust. Obtain special instructions before use. May damage fertility or the unborn child. Do not handle until all safety precautions have been Harmful to aquatic life with long lasting effects. read and understood. Wear protective gloves and protective clothing. Avoid release to the environment. If exposed or concerned: Get medical advice/attention. Emergency Overview: A dark green-brown, heavy, soil-like material that is not flammable or combustible under normal conditions of transport and storage. However, when heated strongly in air it will burn, releasing toxic and irritating sulfur dioxide gas as well as zinc oxide and possible lead and cadmium oxide fumes. Contact with strong acids will generate flammable and highly toxic hydrogen sulfide gas (H2S). Possible cancer hazard due to lead, cadmium and silica content. Possible reproductive hazard due to the lead content. SCBA and full protective clothing required for fire emergency response personnel, especially due to the potential for release of highly irritating SO2 gas in a fire situation.

Potential health effects

Caution The toxicological properties of this material have not been fully investigated. The information contained in this SDS is therefore based on information in the technical and scientific literature about the material’s constituent compounds. Concentrate dust is irritating to the nose, throat and respiratory tract. Inhalation or ingestion of very high concentrations of concentrate dust may result in lead and cadmium absorption. Pregnant women should be protected from excessive exposure to prevent lead crossing the placental barrier and causing infant neurological disorders. Lead and lead compounds are listed as an A3 Carcinogen (Confirmed Animal Carcinogen with Unknown Relevance to Humans) by the ACGIH. IARC has listed lead compounds as Group 2A Carcinogens (Probably Carcinogenic to Humans). The NTP has listed lead and lead compounds as Reasonably Anticipated to be a Human Carcinogen. OSHA does not currently list lead as a human carcinogen. Cadmium is classified as an A2 Carcinogen by the ACGIH and as a Group 1 Carcinogen by IARC (see Toxicological Information, Section 11).

Environmental effects

Zinc concentrate is relatively insoluble in water and its constituent metals have low direct bioavailability. However, extended exposure in aquatic and terrestrial environments can lead to the release of constituent metals in bioavailable forms, which may result in toxicity to organisms in these environments.