Material Safety Data Sheet
Section 1：Chemical Product and Company Identification
Product Name： Magnesium stearate
Catalog Codes： /
CAS#:557-04-0
RTECS:W14390000
TSCA: TSCA 8(b) inventory：Magnesium stearate
C1#:Not available
Chemical Formula：（C17H35COO）2 Mg
Section 2： Composition and Information on Ingredients
Compositioon：
Name CAS# % by weight
Magnesium stearate 557-04-0 Stearic acid 45% and palmitic acid
55%
Tpxicological Data on Ingredients；not applicable.
Section 3： Hazards Identification
Potential Acute Health Effects
Hazardous in case of ingestion .Slightly hazardous in case of skin contact（irritant），
of eye contact（irritant），of inhalation
Potential Chronic Health Effects：
CARCINOGENIC EFFECTS:Not available
MUTAGENIC EFFECTS:Not available
TERATOGENIC EFFECTS :Not available
DEVELOPMENTAL TOXICITY:Not available
The substance may be toxic to liver ，skin
Repeated of protonged exposure to the substance can produce target organs damage
Section 4： First Aid Measures
Eye Contact：
Check for and remove any contact lenses. In case of contact ，immediately flush eyes
with plenty of water for at least 15 minutes.Cold water may be used .WARM water
MUST be used. Get medical attention if initation occurs.
Skin Coctact ： Wasb with soap and water . Cover the irritated skin with an
emollient.Get medical attention if irritation develops.
Serious Skin Contact：Not available.
Inhalation：
If inhaled，remove to fresh air，if not breathing ，give artifical respiration.if breathing
is difficult，give oxygen. Get medical attention.
Serious Inhalation：Not available.
Ingestion：
Do NOT induce vomlting unless directed to do so by medical personel. Never give
anything by mouth to an unconscious person. If large quantities of this material are
allowed，call a physician immediately.Loosen tight clothing such as a collar，tie，belt or
waistband.
Serious Ingestion：Not available.
Section5：Fire and Explosion Data
Flammability of the Product：May be combustible at high temperature.
Auto-lgnition Tempertature：Not available.
Flash Points：Not available.
Flammable Limits：Not available.
Product of Combustion：These products are carton oxides（CO,CO2）.
Fire Hazards in Presence of Various Substances：
Risks of explosion of the product in presence of mechanical impact：Not available.
Risks of explosion of the product in presence of static discharge：Not available.
Fire Fighting Media and Instructions：
SMALL FIRE :Use DRY chemical powder.
LARGE FIRE:Use water spray。Fog or foam .Do not use water jet.
Special Remarks on Fire Hazards：Not available.
Section 6：Accidental Release Measures
Small Spill：
Use appropriate tools to put the solid in a convenient waste disposal container.Finish cleaning
by spreading water on the contaminated surface and dispose of according to local and regional
authority requirements.
Large Spill:
Use a shovel to put the material into a convenient waste disposal container.Finish cleaning by
spreading water on the contaminated surface and allow to evacuate through the sanitary
system.Be careful that the product is not present at a concentration level above TLV.Check
TLV on the MSDS and local authorities.
Section 7: Handling and Storage
Precautions:
Keep away from heat.Keep away from sources of ignition.Empty containers pose a fire
risk,evaporate the residue under a fume hood.Ground all equipment containing material.Do
not breathe dust.
Storage:Keep container tightly closed .Keep container in a cool ,well-ventilated area.
Storage 8: Exposure Controls/Personal Protection
Engineering Controls:
Use process enclosures,local exhaust ventilation,or other engineering controls to keep
airborne levels below recommended exposure limits.If user operations generate dust,use
ventilation to keep exposure to airbome contaminations below the exposure limit.
Personal Protection:Safety glasses.Lab coat.Dust respirator.Be sure to use an
approved/certified respirator or equipment.
Gloves.
Personal Protection in Case of a Large Spill:
Splash goggles.Full suit.Dust respirator .Boots.Gloves.A self contained breathing apparatus
should be used to avoid inhalation of the product.Suggested protective clothing might be
sufficient,consult a specialist BEFORE handling this product.
Exposure Limits:
TWA:10 from ACGIH(TLV)[United States]
Consult local authorities for acceptable exposure limits.
Section 9: Physical and Chemical Properties
Physical state and appearance :Solid
Odor:Not available.
Taste:Not available.
Molecular Weight:Not available.
Color:Not available.
Ph(1 % soln/water):Not available
Boiling Point:Not available.
Melting Point:88 °C(190.4 °F)
Critical Temperature:Not available.
Special Gravity:1.028 (water=1)
Vapor pressure：Not applicable.
Vapor Density：Not available.
Volatility：Not available.
Odor Threshold：Not available.
Water Oil Dist. Coeff.：Not available.
Lonicity（in Water）：Not available.
Dispersion Properties：Not available.
Solubility：Very slightly soluble in cola water .
Section 10：Stability and Reactivity Data
Stability :The product is stable.
Instability Temperature :Not available.
Conditions of Instability :Not available.
Incompatibility with various substances:Not available.
Corrosivity：Non-corrosive in presence of glass.
Special Remarks on Reactivity：Not available.
Special Remarks on Corrosivity：Not available.
Polymerization：Will not occur.
Section 11：Toxicological Information
Routes of Entry：Ingestion.
Toxicity to Animals：
LD50：Not available.
LC50：Not available.
Chronic Effects on Humans：May cause damage to the following organs：liver，skin.
Other Toxic Effects on Humans：
Hazardous in case of ingestion.
Slightly hazardous in case of skin contact （irritant），of inhalation.
Special Reamrks on Toxicity to Animals：Not available.
Special Reamrks on Chronic Effects on Humans：Not available.
Special Remarks on other Toxic Effects on Humans：Not available.
Section 12： Ecological Information
Ecotoxicity：Not available.
BODS and COD:Not available.
Products of Biodegradation：
Possibly hazardous short term degradation products are not likely.However ， long term
degradation products may arise.
Toxicity of the Products of Biodegradation：The products of degradation are more toxic.
Special Reamrks on the Products of Biodegradation：Not available.
Section 13： Disposal Considerations
Waste Disposal：
Section 14： Transport Information
DOT Classification：Not a DOT controlled material（United States）.
Identification：Not applicable.
Special Provisions for Transport ：Not applicable.
IMO\IMDG\SEA TRANSPORT information
NEWEST UPDATED IMDG CODE: NOT DANGEROUS GOODS.
IMO： Not dangerous goods
Section 15：Other Regulatory Information
Federal and State Regulations：
California prop.65： This product contains the following ingredients for which the State of
California has found to cause cancer，birth defects or other reproductive harm，which would
require a warming under the statute：
Magnesium stearate：
California prop.65：Thin product contains the following ingredients for which the State of
California has found to cause cancer which would require a warning under the statute ：
Magnesiun stearate.
Other Regelations：Not available.
Other Classifications：
WHMIS(Canada)：Not controlled under WHMIS(Canada).
DSCL(EEC):
This product isnot classified according
To the EU regulations.
HMIS(U.S.A):
Health Hazard：1
Fire Hazard：1
Reactivity：0
Personal Protection：E
National Fire Protection Association（U.S.A）:
Health：1
Flammability：1
Reactivity：0
Specific hazards：
Protection Equipment：
Gloves
Lab coat.
Dust respirator.Be sure to use an approved/certified respirator or equivalent
Safety glasses.
Section 16： Other Information
References：Not available.
Other Special Considerations：Not available.
Created：10/10/2005 08:22PM
Last Updated：11/06/2018 12:00 PM
The information above is believed to be accurate and represents the best information
currently available to us .However，we make no warranty of merchantability or any other
warranty，express or implied，with respect to such information，and we assume no liability
resulting from its use.Users should make their own investigations to determine the suitability
of the information for their particular purposes.In no event shall Accobio. be liable
for any claims，losses，or damages of any third party or for lost profits or any special ，
indirect ，incidental，consequential or exemplary damage，however arising，even if
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