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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Link to relevant study record(s)

Description of key information

Short description of key information on bioaccumulation potential result: 
The substance is a reaction mass of calcium carbonate and calcium dihydroxide and silicon dioxide. The main bioavailable constituents are inorganic substances which are naturally present in the environment and their systemic toxicity is low. Furthermore the toxicokinetics of these constituents are known. Because the toxicokinetics of the constituents are known a specific study with this reaction mass is not needed or useful.

Key value for chemical safety assessment

Bioaccumulation potential:
no bioaccumulation potential

Additional information

The substance is a reaction mass of calcium carbonate and calcium dihydroxide and silicon dioxide. The main bioavailable constituents are inorganic substances which are naturally present in the environment and their systemic toxicity is low. Furthermore the toxicokinetics of these constituents are known. Because the toxicokinetics of the constituents are known a specific study with this reaction mass is not needed or useful.

 

Information sources:

European chemical Substances Information System http://ecb.jrc.ec.europa.eu/esis/

International Programme on Chemical Safety, Concise international chemical assessment document No.24, Crystalline silica, Quartz, 09-21-10, http://www.inchem.org/documents/cicads/cicads/cicad24.htm)

International chemical Safety Cards, National Instutute for occupational Safety and Health http://www.cdc.gov/niosh/ipcsneng/neng0808.html

International chemical Safety Cards, National Instutute for occupational Safety and Health http://www.cdc.gov/niosh/ipcsneng/neng0408.html

International chemical Safety Cards, National Instutute for occupational Safety and Health 

http://www.cdc.gov/niosh/ipcsneng/neng0409.html

Recommendation from the Scientific Committee on Occupational Exposure Limits for Calcium oxide (CaO) and Calcium Hydroxide (Ca(OH)2), European Commission, DG Employment, social Affairs and Equal Opportunities, SCOEL/SUM/137, February 2008

Threshold Limit Values & Biological Exposure Indices for Chemical Substances and Physical Agents, ACGIH®, Signature Publications, 2010