ARO 60

SECTION 2: Hazards identification

Not a hazardous substance or mixture according to the Globally Harmonised System (GHS) Emergency Overview Appearance solid, powder / beads Colour black Odour odourless Hazard Summary A black, odourless, insoluble, powder that can burn or smoulder at temperatures greater than 752ºF (400ºC, VDI 2263). Hazardous products of decomposition can include carbon mo- noxide, carbon dioxide, and oxides of sulphur. May cause reversible mechanical irritation to the eyes and respi- ratory tract, especially at concentrations above the occupational exposure limit. Some grades of carbon black are sufficiently electrically non- conductive to allow a build-up of static charge during handling. Take measures to prevent the build-up of electrostatic charge. May form explosible dust-air mixture if dispersed. OSHA Regulatory status : According to the criteria in OSHA HCS (2012) 29 CFR 1910.1200 for classifying hazardous substances, Carbon Black is not classified for any toxicological or eco-toxicological endpoint. As a combustible dust it is designated by OSHA as a hazardous chemical.

2.1 Classification of the substance or mixture

Not a dangerous substance or mixture according to the Globally Harmonised System (GHS). According to the criteria in GHS (UN) for classifying hazardous substances, Carbon Black is not classified for any physico-chemical, toxicological or eco-toxicological endpoint.

Signal word

Warning

Precautionary statements

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 expo- sure limits.

Principle Routes of Exposure

Inhalation Eye contact Skin contact Inhalation : Temporary discomfort to upper respiratory tract may occur due to mechanical irritation when exposures are above the occupational exposure limit. Skin : May cause mechanical irritation, soiling, and skin drying. No cases of sensitization in humans have been reported. Eyes : High dust concentrations may cause mechanical irritation to eye. Ingestion : No evidence of adverse effects from available data. Chronic Exposure : Long-term exposure below the current occupational exposure limit of 3.5 mg/m3 (when measured as traditional total dust) may result in a small loss in one aspect of lung function (FEV1) over a working life-time. IARC listed: Group 2B (possibly carcinogenic to humans). Not listed as a carcinogen by NTP, ACGIH, OSHA, or the Euro- pean Union. See Section 11. However, the manufacturers of carbon black state that epide- miologic studies of workers in the carbon black industry in the U.S. and W. Europe show no significant adverse health ef- fects due to occupational exposure. This product contains one or more ingredients that have been shown to produce muta- genic effects in in vitro testing. Most carbon blacks contain trace quantities of PAHs present at levels less than 0.1% unless otherwise specified by the supplier. 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 re- leased in biological fluids and thus not available for biological activity. See Section 16. Some studies have linked exposure of carbon black dust to lung effects.

Medical Conditions Generally Aggravated by Exposure

Asthma Respiratory disorder Carcinogenicity: IARC Group 2B: Possibly carcinogenic to humans, see section 11. ACGIH Confirmed animal carcinogen with unknown relevance to hu- mans, see section 11. OSHA Not classifiable as a human carcinogen, see section 11. NTP Not classifiable as a human carcinogen, see section 11.