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MSDS 
:
 Lauroyl peroxide
CAS 
:
 105-74-8
SYNONYMS 
:
 Dilauroyl peroxideDodecanoyl peroxide
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 105-74-8 |Lauroyl peroxide | | 203-326-3 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: O
Risk Phrases: 7

**** SECTION 3 - HAZARDS IDENTIFICATION ****

EMERGENCY OVERVIEW
May cause fire.

Potential Health Effects
Eye:
Non-irritating to the eyes. Causes eye irritation.
Skin:
Non-irritating to the skin. May be harmful if absorbed through the
skin.
Ingestion:
May cause irritation of the digestive tract.
Inhalation:
May cause respiratory tract irritation.
Chronic:
Not available.

**** SECTION 4 - FIRST AID MEASURES ****

Eyes:
Flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15
minutes while removing contaminated clothing and shoes.
Ingestion:
Do not induce vomiting. Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not
breathing, give artificial respiration. If breathing is difficult,
give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.

**** SECTION 5 - FIRE FIGHTING MEASURES ****

General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Strong oxidizer. Contact with other material may
cause fire.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or chemical foam.

**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal
container. Remove all sources of ignition.

**** SECTION 7 - HANDLING and STORAGE ****

Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin
and eyes. Avoid mechanical shock and friction.
Storage:
Do not store near combustible materials. Store in a tightly closed
container. Store in a dry area. Keep refrigerated. (Store below
4C/39F.) Keep away from reducing agents.

**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****

Engineering Controls:
Use explosion-proof ventilation equipment. Facilities storing or
utilizing this material should be equipped with an eyewash facility
and a safety shower.
Exposure Limits
CAS# 105-74-8:


Personal Protective Equipment

Eyes:
Not available.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
Follow the OSHA respirator regulations found in 29
CFR 1910.134 or European Standard EN 149. Use a
NIOSH/MSHA or European Standard EN 149 approved
respirator if exposure limits are exceeded or if
irritation or other symptoms are experienced.

**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****

Physical State: Flakes
Color: white
Odor: faint odor
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 56 deg C
Autoignition Temperature: > 380 deg C (> 716.00 deg F)
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: <10 ppm (20-25C)
Specific Gravity/Density:
Molecular Formula: C24H46O4
Molecular Weight: 398.63

**** SECTION 10 - STABILITY AND REACTIVITY ****

Chemical Stability:
A dangerous self-accelerating decomposition reaction and, under
certain circumstances, explosion or fire can be caused by direct
contact with incompatible substances or by thermal decomposition at
and above the SADT (see Section 16).
Conditions to Avoid:
Incompatible materials, ignition sources, combustible materials.
Incompatibilities with Other Materials:
Reducing agents, acids, bases, finely powdered metals, rust, heavy
metals.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: Has not been reported

**** SECTION 11 - TOXICOLOGICAL INFORMATION ****

RTECS#:
CAS# 105-74-8: OF2625000
LD50/LC50:
CAS# 105-74-8: Draize test, rabbit, eye: 500 mg/24H Mild; Oral, rat:
LD50 = 10000 mg/kg.
Carcinogenicity:
Lauroyl peroxide -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

**** SECTION 12 - ECOLOGICAL INFORMATION ****

Other
No information available.

**** SECTION 13 - DISPOSAL CONSIDERATIONS ****

Dispose of in a manner consistent with federal, state, and local regulations.

**** SECTION 14 - TRANSPORT INFORMATION ****

IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

**** SECTION 15 - REGULATORY INFORMATION ****

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: O
Risk Phrases:
R 7 May cause fire.
Safety Phrases:
S 3/7 Keep container tightly closed in a cool,
well-ventilated place.
S 14A Keep away from acids, reducing agents and
polymerisation catalysts.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
WGK (Water Danger/Protection)
CAS# 105-74-8: 1
Canada
CAS# 105-74-8 is listed on Canada's DSL List.
CAS# 105-74-8 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 105-74-8 is listed on the TSCA inventory.

**** SECTION 16 - ADDITIONAL INFORMATION ****

MSDS Creation Date: 7/26/2000 Revision #1 Date: 3/18/2003

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 way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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