Material Safety Data Sheet chemusa
Section I. Chemical Product and Company Identification
VAROX庐 DCP
Product Name/ 71078
Code
Trade Name
80-43-3
CAS#
Supplier R.T. VANDERBILT COMPANY, INC.
In case of Call: (203) 853-1400
30 WINFIELD STREET Emergency
NORWALK, CT 06855
Dicumyl peroxide
Synonym
Peroxide, bis(1-methyl-1-phenylethyl)
Chemical Name
Not available.
Chemical Family
Chemical Formula C18H22O2
Industrial applications: Cross-linking agent.
Material Uses
TSCA 8(b) inventory: VAROX庐 DCP
TSCA Status
Section II. Composition and Information on Ingredients
Name CAS # % by Weight
dicumyl peroxide 80-43-3 >99
Section III. Hazards Identification
Crystalline solid. Organic peroxide. Heat or contamination by strong acids cause gaseous decomposition.
Emergency Overview
Decomposition products are flammable. May cause eye, skin and respiratory tract irritation.
Section IV. First Aid Measures
Check for and remove any contact lenses. Flush with running water for at least 15 minutes. Get medical
Eye Contact
attention.
In case of contact, immediately flush skin with plenty of water. Cover the irritated skin with an emollient.
Skin Contact
Remove contaminated clothing and shoes. Wash clothing before reuse. Thoroughly clean shoes before
reuse. Get medical attention.
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Inhalation
Get medical attention if symptoms appear.
Do not induce vomiting. Immediately give two glasses of water, a little at a time. Never give anything by
Ingestion
mouth to an unconscious person. Call a physician. If vomiting occurs spontaneously, lower head below waist
to prevent fluid from entering the lungs
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VAROX庐 DCP Page Number: 2
Section V. Fire and Explosion Data
Flammable in presence of open flames, sparks, shocks, heat, oxidizing materials, reducing materials,
Flammability of the Product
combustible materials, organic materials, metals, acids, alkalis, moisture.
Not available.
Auto-Ignition Temperature
OPEN CUP: >200掳C (392掳F).
Flash Points
Not available.
Flammable Limits
These products are carbon oxides (CO, CO2).
Products of Combustion
Explosion Hazards in Presence 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.
of Various Substances
Oxidizing material.
Fire Fighting Media
Do not use water jet. Use flooding quantities of water. Avoid contact with organic materials.
and Instructions
Contamination and high temperature can cause decomposition with force if confined during exposure to fire.
Special Remarks on
Decomposition products are flammable and can self-ignite.
Fire Hazards
Special Remarks on Explosion Not available.
Hazards
Section VI. Accidental Release Measures
Put spilled solid in a waste disposal container.
Small Spill
Oxidizing material. Organic peroxide.
Large Spill
Stop leak if without risk. Avoid contact with a combustible material (wood, paper, oil, clothing...). Keep
substance damp using water spray. Do not use metal tools or equipment. Do not touch spilled material. Use
water spray to reduce vapors. Prevent entry into sewers, basements or confined areas; dike if needed.
Eliminate all ignition sources. Call for assistance on disposal. Be careful that the product is not present at a
concentration level above TLV. Check TLV on the MSDS and with local authorities.
Section VII. Handling and Storage
Store below 100 F to maintain active oxygen content. Detached storage is preferred. Avoid excessive heat
Storage
and store out of direct sunlight in a cool well-ventilated place. Store away from combustibles and
incompatibles.
Keep away from heat, sparks and flame. Use explosion proof equipment.
Handling Procedures and
Equipment
Section VIII. Exposure Controls/Personal Protection
Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below
Engineering Controls
recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep
exposure to airborne contaminants below the exposure limit.
Splash goggles. Lab coat. Dust respirator. Be sure to use an approved/certified respirator or equivalent.
Personal Protection
Gloves.
dicumyl peroxide
TLV / PEL
TWA: 5 (mg/m3) from OSHA (PEL) Respirable.
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VAROX庐 DCP Page Number: 3
Section IX. Physical and Chemical Properties
White. Crystalline solid.
Appearance
270.37
Molecular Weight
Not applicable.
pH (1% soln/water)
Not available.
Boiling/Condensation Point
38掳C (100.4掳F)
Melting/Sublimation Point
Not available.
Specific Gravity
1.04 Mg/m鲁 at 25掳C (77掳F)
Density
15.4 mmHg at 38掳C
Vapor Pressure
9.3(Air = 1)
Vapor Density
0% (v/v).
Volatility
Lemon-menthol
Odor / Odor Threshold
Not available.
Evaporation rate
Not available.
Viscosity
Not available.
Water/Oil Dist. Coeff.
Insoluble in cold water.
Solubility
Section X. Stability and Reactivity Data
Unstable.
Stability
Self accelerating decomposition temperatue = 91掳C in 40 lb. pail.
Instability Temperature
Heat, flames, sparks, ignition sources and contamination.
Conditions of Instability
Contact with foreign materials, such as, strong acids and oxidizers, may result in a violent decomposition or in
Incompatibility with
product degradation.
Various Substances
Not available.
Corrosivity
Special Remarks on Reactivity An uncontrolled polymerization may produce a rapid release of energy with the potential for an explosion of
unvented closed containers or inadequately vented containers.
Section XI. Toxicological Information
Inhalation. Skin contact. Eye contact.
Routes of Entry
Acute oral toxicity (LD50): 4100 mg/kg [Rat].
Toxicity to Animals
Acute inhalation toxicity (LC50): >224 mg/m鲁 (6 hours) [Rat]
Eye irritation (rabbits): Slightly irritating
Special Remarks on
Skin irritation (rabbits): Slightly irritating
Toxicity to Animals
No skin allergy was observed in guinea pigs following repeated skin exposure to dicumyl peroxide. Following
repeated placement (1-month) of dicumyl peroxide into the nose of rabbits, nose irritation and an increase in
the number of nasal blood vessels were reported. Rats exposed to dicumyl peroxide (124 mg/m鲁) for a longer
period (3-months) exhibited signs of respiratory tract and eye irritation.
Acute Effects
Mildly irritating to the eyes.
Eye contact
Slight skin irritant.
Skin Contact
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VAROX庐 DCP Page Number: 4
This material is not expected to be a skin sensitizer. This material is not expected to be a skin absorption
Sensitization
hazard.
Slightly hazardous in case of ingestion.
Ingestion
Inhalation of high concentrations may cause irritation or discomfort.
Inhalation
Not available.
Remarks
CARCINOGENIC EFFECTS Classified 4 (No evidence.) by NTP [VAROX庐 DCP].
:
Chronic Effects on
MUTAGENIC EFFECTS Non-mutagenic for bacteria and/or yeast. [VAROX庐 DCP].
:
Humans
DEVELOPMENTAL TOXICITY Not available.
:
REPRODUCTIVE TOXICITY Not available.
:
Repeated or prolonged exposure is not known to aggravate medical condition.
Not available.
Remarks
Section XII. Ecological Information
Ecotoxicity in water (LC50): 108 mg/l 96 hours [Fish.].
Ecotoxicity
Not available.
BOD5 and COD
Not available.
Products of Biodegradation
Not readily biodegradable in a 28-day closed bottle test.
Biodegradability
Not available.
Special Remarks on the
Products of Biodegradation
Section XIII. Disposal Considerations
RCRA Hazardous Waste, D003.
Waste information
Waste must be disposed of in accordance with federal, state and local environmental control regulations.
Not available.
Waste stream
Section XIV. Transport Information
Class 5.2: Organic peroxide. Type F
DOT
ORGANIC PEROXIDE
5.2
Shipping name: Organic Peroxide Type F, Solid (dicumyl peroxide), 5.2,UN 3110, PG II.
Not available.
Remarks
Not available.
Maritime transportation
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VAROX庐 DCP Page Number: 5
Section XV. Other Regulatory Information and Pictograms
Class: Organic peroxide.
Classifications HCS (USA)
Class: Unstable (reactive)
OSHA: Hazardous by definition of Hazard Communication Standard (29 CFR
1910.1200).
New Jersey: DICUMYL PEROXIDE
Federal and State
TSCA 8(b) inventory: VAROX庐 DCP
Regulations
SARA 302/304/311/312 hazardous chemicals: DICUMYL PEROXIDE
SARA 311/312 MSDS distribution - chemical inventory - hazard identification:
DICUMYL PEROXIDE: reactive
Not available.
Remarks
National Fire Protection
Hazardous Material Flammability
2
2
Health Hazard
Association (U.S.A.)
Information System
2 2 2
Fire Hazard
(U.S.A.) Reactivity
Health
2
Reactivity
Specific hazard
E
Personal Protection
Other regulatory EINECS: This product is on the European Inventory of Existing Commercial Chemical Substances.
specifications
CEPA DSL: VAROX庐 DCP
Australia: VAROX庐 DCP
Japan (MITI): VAROX庐 DCP
Korea (TCCL): VAROX庐 DCP
Philippines (RA6969): VAROX庐 DCP
Protective Clothing
(Pictograms)
Section XVI. Other Information
Not available.
References
Not available.
Other Special
Considerations
Validated by Erin A. Bendig on 5/22/2003. Verified by Erin A. Bendig.
Previous Validation Date: No Previous Validation. Printed 5/22/2003.
Information Contact David Bower, Ph.D. (203) 853-1400 ext. 233
Corporate Risk Management
Notice to Reader
Information presented herein has been compiled from sources considered to be dependable and is accurate and reliable to the best of our knowledge
and belief but is not guaranteed to be so. Nothing herein is to be construed as recommending any practice or any product in violation of any patent or
in violation of any law or regulation. It is the user鈥檚 responsibility to determine for himself the suitability of any material for a specific purpose and to
adopt such safety precautions as may be necessary. We make no warranty as to the results to be obtained in using any material and, since conditions
of use are not under our control, we must necessarily disclaim all liability with respect to the use of any material supplied by us.
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