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Sigma Aldrich Data PRODUCT Aldrich Corporation www carbon hydroxide pentahydrate Corporation www Sigma M5671 Sigma Aldrich Magnesium carbon hydroxide May Sigma Aldrich Corporation Sigma M5671 Sigma www Sigma Aldrich INFORMATION protective

 
Sigma - M5671 
Sigma-Aldrich Corporation 
www.sigma-aldrich.com 
Page 1  of  4 
 
SIGMA-ALDRICH 
 
Material Safety Data Sheet 
 
Version 3.0   
Revision Date  04/15/2008 
Print Date 01/13/2009 
 
1. PRODUCT AND COMPANY IDENTIFICATION 
Product name 
: Magnesium carbonate hydroxide pentahydrate 
 
Product Number 
: M5671 
Brand 
: Sigma 
 
Company 
: Sigma-Aldrich Canada, Ltd 
2149 Winston Park Drive 
OAKVILLE ON  L6H 6J8 
CANADA 
Telephone 
: +1 9058299500 
Fax 
: +1 9058299292 
Emergency Phone # 
: 800-424-9300 
 
2. COMPOSITION/INFORMATION ON INGREDIENTS 
Formula 
: C4Mg4O12 · H2MgO2 · 5H2O 
Molecular Weight 
: 485.65 g/mol 
 
CAS-No. 
EC-No. 
Index-No. 
Concentration 
Magnesium carbonate hydroxide pentahydrate 
56378-72-4 
235-192-7 
 -  
 -  
 
 
3. HAZARDS IDENTIFICATION 
WHMIS Classification 
 
Not WHMIS controlled. 
Not WHMIS controlled. 
HMIS Classification 
Health Hazard: 
0 
Flammability: 
0 
Physical hazards: 
0 
Potential Health Effects 
Inhalation 
May be harmful if inhaled. May cause respiratory tract irritation.  
Skin 
May be harmful if absorbed through skin. May cause skin irritation.  
Eyes 
May cause eye irritation.  
Ingestion 
May be harmful if swallowed.  
 
4. FIRST AID MEASURES 
If inhaled 
If breathed in, move person into fresh air. If not breathing give artificial respiration 
In case of skin contact 
Wash off with soap and plenty of water. 
 
Sigma - M5671 
Sigma-Aldrich Corporation 
www.sigma-aldrich.com 
Page 2  of  4 
 
In case of eye contact 
Flush eyes with water as a precaution. 
If swallowed 
Never give anything by mouth to an unconscious person. Rinse mouth with water. 
 
5. FIRE-FIGHTING MEASURES 
Flammable properties 
Flash point 
no data available 
 
Ignition temperature 
no data available 
Suitable extinguishing media 
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. 
Special protective equipment for fire-fighters 
Wear self contained breathing apparatus for fire fighting if necessary. 
 
6. ACCIDENTAL RELEASE MEASURES 
Personal precautions 
Avoid dust formation. 
Environmental precautions 
Do not let product enter drains. 
Methods for cleaning up 
Sweep up and shovel. Keep in suitable, closed containers for disposal. 
 
7. HANDLING AND STORAGE 
Handling 
Provide appropriate exhaust ventilation at places where dust is formed. Normal measures for preventive fire 
protection.  
Storage 
Keep container tightly closed in a dry and well-ventilated place.  
 
8. EXPOSURE CONTROLS/PERSONAL PROTECTION 
Contains no substances with occupational exposure limit values. 
Personal protective equipment 
Respiratory protection 
Respiratory protection is not required. Where protection from nuisance  levels of dusts are desired, use type N95 
(US) or type P1 (EN 143) dust masks. Use respirators and components tested and approved under appropriate 
government standards such as NIOSH (US) or CEN (EU). 
Hand protection 
For prolonged or repeated contact use protective gloves.  
Eye protection 
Safety glasses 
Hygiene measures 
General industrial hygiene practice. 
 
9. PHYSICAL AND CHEMICAL PROPERTIES 
Appearance 
Form 
solid 
Safety data 
 
Sigma - M5671 
Sigma-Aldrich Corporation 
www.sigma-aldrich.com 
Page 3  of  4 
 
pH 
no data available 
 
Melting point 
no data available 
 
Boiling point 
no data available 
 
Flash point 
no data available 
 
Ignition temperature 
no data available 
 
Lower explosion limit no data available 
 
Upper explosion limit no data available 
 
Density 
2.160 g/cm3 
 
Water solubility 
slightly soluble 
 
 
10. STABILITY AND REACTIVITY 
Storage stability 
Stable under recommended storage conditions.  
Materials to avoid 
Strong oxidizing agents, acids 
Hazardous decomposition products 
Hazardous decomposition products formed under fire conditions. - Carbon oxides 
 
 
11. TOXICOLOGICAL INFORMATION 
Acute toxicity 
no data available 
Irritation and corrosion 
no data available 
Sensitisation 
no data available 
Chronic exposure 
IARC: 
No component of this product present at levels greater than or equal to 0.1% is identified as 
probable, possible or confirmed human carcinogen by IARC. 
Potential Health Effects 
Inhalation 
May be harmful if inhaled. May cause respiratory tract irritation.  
Skin 
May be harmful if absorbed through skin. May cause skin irritation.  
Eyes 
May cause eye irritation.  
Ingestion 
May be harmful if swallowed.  
 
 
12. ECOLOGICAL INFORMATION 
Elimination information (persistence and degradability) 
 
no data available 
 
Ecotoxicity effects 
 
no data available 
Further information on ecology 
no data available 
 
Sigma - M5671 
Sigma-Aldrich Corporation 
www.sigma-aldrich.com 
Page 4  of  4 
 
 
13. DISPOSAL CONSIDERATIONS 
Product 
Observe all federal, state, and local environmental regulations.  
 
Contaminated packaging 
Dispose of as unused product.  
 
14. TRANSPORT INFORMATION 
DOT (US) 
Not dangerous goods 
 
IMDG 
Not dangerous goods 
 
IATA 
Not dangerous goods 
 
15. REGULATORY INFORMATION 
TSCA Status 
Not On TSCA Inventory 
 
Magnesium carbonate hydroxide pentahydrate 
CAS-No. 
56378-72-4 
 
DSL Status 
This product contains the following components that are not on the Canadian DSL nor NDSL lists. 
 
Magnesium carbonate hydroxide pentahydrate 
CAS-No. 
56378-72-4 
 
WHMIS Classification 
 
Not WHMIS controlled. 
Not WHMIS controlled. 
 
16. OTHER INFORMATION 
Further information 
Copyright 2008 Sigma-Aldrich Co. License granted to make unlimited paper copies for internal use only. 
The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a 
guide. The information in this document is based on the present state of our knowledge and is applicable to the 
product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the 
product. Sigma-Aldrich Co., shall not be held liable for any damage resulting from handling or from contact with 
the above product. See reverse side of invoice or packing slip for additional terms and conditions of sale.