Carbon Black - all grades

2.1 Classification of the substance or mixture

Canada WHMIS - Not classified for any health hazards, is classified as combustible dust. European Union - Not hazardous substance or preparation under CLP-Regulation (EC) No. 1272/2008. European Union - Not a hazardous substance according to Directive 67/548/EC. United States OSHA - Classified as hazardous under 29 CFR 1910.1000, Table Z-1. GHS - Not a hazardous substance or preparation under Globally Harmonized System

Hazard pictograms

not currently available for combustible dust hazard

Signal word

May form explosible dust-air mixture if dispersed • Keep away from all ignition sources including heat, sparks, and flame. • Prevent dust accumulations to minimize explosion hazard. • Control dust exposures to below applicable occupational exposure limits.

2.3 Other hazards

Carbon black may become a combustible dust under certain conditions. Hazardous products of combustion may include carbon monoxide, carbon dioxide, and oxides of sulfur. Emergency Overview A black, odorless powder, which can burn or smolder at temperatures greater than 572ºF (>300ºC). Hazardous products of decomposition can include carbon monoxide, carbon dioxide, and oxides of sulfur. May cause mechanical irritation to the eyes and the respiratory tract especially at concentrations above the occupational exposure limit. Some grades of Carbon Black are sufficiently electrically non-conductive to allow a buildup of static charge during handling. Take measures to prevent the build up of electrostatic charge. 2.4

Principle Routes of Exposure

Inhalation, eye and skin 2.5

Potential health effects

Inhalation: Temporary discomfort to upper respiratory tract may occur due to mechanical irritation when exposures are well above the occupational exposure limit. Long-term exposure may result in a small non- clinically significant increase in normal loss in one aspect of lung function (FEV1). (See Section 11) Ingestion: No evidence of adverse effects from available data. Eye: High dust concentrations may cause mechanical irritation to eye. Skin: May cause mechanical irritation, soiling and drying of skin. Sensitization: No cases of sensitization in humans have been reported Chronic: IARC listed; Group 2B (possibly carcinogenic to humans). Not listed as a carcinogen by NTP, ACGIH, OSHA or the European Union. (See Section 11) There are no known human carcinogenic effects related to the PAH content of Carbon Blacks. Recent research has shown that the PAH content of Carbon Blacks is not released from Carbon Black in biological fluids and thus not available for biological activity. 2.6

Environmental effects

No significant environmental hazards are associated with Carbon Black release to the environment. Carbon Black is not soluble in water. (See Section 12)