MATERIAL SAFETY DATA SHEET
1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME: Di-Cup庐 R
SYNONYMS: Dicumyl peroxide
DCP
SUPPLIER: GEO Specialty Chemicals, Inc.
50 North Market Street
Gibbstown, NJ 08027
1-800-423-7193 [24 hr]
NFPA Rating: NFPA 432 - Organic Peroxide Classification: Class IV
HMIS Classification: Health: 1 Flammability: 2 Reactivity: 1
EMERGENCY TELEPHONE: CHEMTREC: (800) 424-9300
Outside USA - (703) 527-3887 collect calls accepted
EMERGENCY OVERVIEW:
White to pale yellow solid. Reactive: Exposure to temperatures above 131掳 F (55掳 C) may cause violent
decomposition. Exposure to incompatible materials may cause violent decomposition. Static charges generated
by emptying packages in or near flammable vapors may cause flash fires. May form flammable dust-air mixtures.
May cause skin, eye and respiratory tract irritation.
2. COMPOSITION/INFORMATION ON INGREDIENTS
OSHA - PEL's ACGIH 2002 - TLV's
Ingredient / CAS No. Weight %
Dicumyl peroxide >99 None Established. None Established.
80-43-3
3. HAZARDS IDENTIFICATION
Hazard Information: WARNING! Organic peroxide.
Eye Contact: May cause mild eye irritation.
Inhalation: Dust may cause irritation of the respiratory tract. Prolonged or repeated exposure
may cause nasal irritation and nosebleeds persisting after termination of
exposure.
Skin Contact: May cause mild skin irritation.
Ingestion: Harmful if swallowed.
Aggravated Conditions: None known.
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4. FIRST AID MEASURES
Inhalation: If inhaled, remove to fresh air. If not breathing give artificial respiration, preferably mouth-to-
mouth. If breathing is difficult give oxygen. Get medical attention.
Skin Contact: In case of contact, immediately flush skin with plenty of soap and water for at least 15 minutes.
Get medical attention. Remove contaminated clothing and launder before reuse.
Eye Contact: Remove contact lenses. Immediately flush with plenty of water for at least 15 minutes, holding
eyelids apart to ensure flushing of the entire surface. Washing within one minute is essential to
achieve maximum effectiveness. Seek medical attention.
Ingestion: Do not induce vomiting. Slowly dilute with 1-2 glasses of water or milk and seek medical
attention. Never give anything by mouth to an unconscious person. If vomiting should occur
spontaneously, keep airway clear.
Notes To Physician: Treat symptomatically.
5. FIRE FIGHTING MEASURES
Flash Point (掳F/掳C) > 200掳 F/ > 93掳 C
Flash Point Method: Setaflash
Autoignition Temp. (掳F): Not Determined
Flammable Limits in Air - Lower (%): Not Determined
Flammable Limits in Air - Upper (%): Not Determined
Extinguishing Media: Water fog, carbon dioxide, foam, dry chemical.
Fire Fighting Procedures: Cool exposed containers with water spray after extinguishing fire.
Special Exposure Hazards: Use water spray to cool fire exposed surfaces. Cleanup should not be
attempted until all of the product has cooled completely.
Special Protective Equipment: Fire fighters should wear full protective clothing, including self-contained
breathing equipment.
6. ACCIDENTAL RELEASE MEASURES
Procedure for Cleaning/Absorption: Clean up immediately by sweeping or shoveling material into a properly labeled
container for disposal. Wear adequate personal protective clothing and
equipment. Do NOT mix with vermiculite, Oil-Dri庐 absorbent, or any other
comparable materials that may be acidic. Recommended absorbents include
soda ash, calcium carbonate, clean sand, and clay if known to be inert and non-
acidic. Do not return material to original container. Do not flush to sewers or
surface waterways.
7. HANDLING AND STORAGE
PRECAUTIONARY STATEMENTS: WARNING!
ORGANIC PEROXIDE.
HARMFUL IF SWALLOWED OR INHALED.
Handling: FOR INDUSTRIAL USE ONLY.
Ground all equipment.
Blanket vessel with inert gas where flammable vapors may be present.
Keep bins closed when not in use.
Avoid breathing dust or vapors; if exposed to high dust or vapor concentration,
leave area immediately.
Wear chemical splash goggles, gloves and protective clothing when handling.
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Storage: Avoid temperatures above 131掳 F (55掳 C) which may cause decomposition and
the release of flammable gases.
Store in cool dry place.
Store in well ventilated area.
Avoid conditions that generate dust; product may form flammable dust-air
mixtures.
Avoid emptying package in or near flammable vapors; static charges may cause
flash fire.
Keep away from heat, flame, sparks and other ignition sources.
Avoid storing product near incompatible materials. See MSDS Section 10.
Do not store in direct sunlight.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Engineering Controls: Local exhaust ventilation as necessary to maintain exposures to within applicable
limits. Please refer to the ACGIH document, "Industrial Ventilation, A Manual of
Recommended Practices", most recent edition, for details.
Respiratory Protection: When exposures exceed the PEL or TLV, use NIOSH/MSHA approved respirator
in accordance with OSHA Respiratory Protection Requirements under 29 CFR
1910.134.
Gloves: Appropriate chemical resistant gloves should be worn.
Skin Protection: Normal work coveralls.
Eye Protection: Chemical goggles or a face shield if splashing hazard exists.
Other Personal Protection Data: Eyewash fountains and safety showers must be easily accessible.
Avoid contamination of food, beverage or smoking materials.
9. PHYSICAL AND CHEMICAL PROPERTIES
Physical State: SOLID
Color: WHITE TO PALE YELLOW
Odor: ACRID
pH: Not Applicable
Specific Gravity (Water=1): 1.01 (liquid)
Density @ 20掳 C: Unknown
Boiling Point (掳F/掳C): Decomposes before boiling
Melting Point Range (掳F/掳C): 100掳 F/ 38掳 C
Freezing Point/Range (掳F/掳C): Not Determined
Vapor Pressure: 15.4 mmHg @ 100掳 F/ 38掳 C
Vapor Density (Air=1): 9.3
% Volatile by Volume: Negligible @ 68掳 F / 20掳 C
Evaporation Rate (BuAc=1): <1
Solubility in Water Description: Negligible @ 68掳 F / 20掳 C
VOCs (lbs/gallon): None
Viscosity, Dynamic (Centipoise) @ 20掳 C: Not Determined
Molecular Weight: Not Applicable
10. STABILITY AND REACTIVITY
Chemical Stability: Stable under normal conditions of handling, use and transportation.
Temperatures above 131掳 F (55掳 C) may lead to exothermic decomposition.
Conditions to Avoid: Extreme heat. Avoid direct sunlight.
Materials to Avoid: Acids. Acidic-type materials such as Friedel-Crafts catalysts. Oxidizing agents.
Reducing agents.
Hazardous Decomposition Products: Acetophenone. Alpha, alpha-dimethylbenzyl alcohol. Alpha-methylstyrene.
Methane. Ethane. Phenol. Decomposition products may cause eye, skin or
respiratory irritation; may be skin sensitizers; and are flammable.
Hazardous Polymerization: Not anticipated under normal or recommended handling and storage conditions.
Additional Guidelines: None.
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11. TOXICOLOGICAL INFORMATION
PRINCIPAL ROUTES OF EXPOSURE: Skin, eyes and respiratory tract.
Ingestion: Harmful if swallowed.
Skin Contact: May cause mild skin irritation.
Inhalation: Dust may cause irritation of the respiratory tract. Prolonged or repeated exposure
may cause nasal irritation and nosebleeds persisting after termination of
exposure.
Eye Contact: May cause mild eye irritation.
Carcinogenicity Status
(Chemical Name, Wt. %, CAS No.)
Dicumyl Peroxide 99+% 80-43-3
IARC Group 1, Group 2A or Group 2B Carcinogen: Not Listed
National Toxicology Program Known or Suspect Carcinogen: Not Listed
ACGIH Confirmed or Suspected Carcinogen: Not Listed
OSHA Select or Possible Select Carcinogen: Not Listed
Acute Oral LD50 (mg/kg): 2000 mg/kg (rats)
Acute Dermal LD50 (mg/kg): Not Determined
Acute Inhalation LC50 (mg/l): Not Determined
Mutagenicity/Genotoxicity: No mutagenicity or genotoxicity studies have been carried out with this product.
Other Information: PRODUCT/SIMILAR PRODUCT - REPORTED HUMAN EFFECTS:
Mild skin irritant. Reported to cause nasal inflammation and dilation of the blood
vessels, which persisted for a significant time after exposure was terminated.
There are also reports of respiratory and eye irritation from heated vapor or dust
of organic peroxides when proper respiratory protection was not used. Due to the
physical nature of this material, it may cause eye, skin and respiratory irritation
under certain conditions.
PRODUCT/SIMILAR PRODUCT - REPORTED ANIMAL EFFECTS:
Eye irritation (rabbit): mild conjunctivitis; no corneal effects. Not a skin irritant or
sensitizer in guinea pig test using Buehler protocol. Rabbit insufflation test,
repeated three times per day for up to four weeks at levels comparable with
workplace exposure, indicated nasal inflammation that persisted for two months
after termination of treatment.
PRODUCT/SIMILAR PRODUCT - MUTAGENICITY/GENOTOXICITY
INFORMATION - Not mutagenic based on bacterial tests of this or a similar
product.
12. ECOLOGICAL INFORMATION
Mobility: Not Determined
Persistence: Not Determined
Bioaccumulative: Not Determined
Ecotoxicological Information:
Acute Fish Toxicity: LC50 96 hr static: 1-10 mg/L (fathead minnow)
Acute Crustaceans Toxicity: Not Determined
Acute Algae Toxicity: Not Determined
Chemical Fate Information: Not Determined
Other Information: No ecological studies have been carried out on this product. Substance known to
be toxic to aquatic organisms.
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13. DISPOSAL CONSIDERATIONS
Waste Disposal Method:
Dispose of product in an approved chemical waste facility or incinerate in accordance with all Federal, State and local
regulations. Since the emptied container retains product residue, all labeled hazard precautions must be observed. Do
not mix with other products or wastes. Do NOT put solutions containing this product into sewer systems. Do NOT reuse
empty containers.
RCRA
Is the unused product a RCRA hazardous waste if discarded? (Yes/No) Yes
If yes, the EPA Hazardous Waste Code is: D003 (reactivity)
14. TRANSPORTATION INFORMATION
DOT:
DOT Status: REGULATED MATERIAL.
DOT Shipping Name: ORGANIC PEROXIDE TYPE F, SOLID (DICUMYL PEROXIDE, 99%)
UN/NA Number: UN3110
Hazard Class: 5.2
DOT Packing Group: II
ERG#: 145
Harmonized Tariff Number: 2909.60.2000
ICAO/IATA:
Status: REGULATED MATERIAL.
Proper Shipping Name: ORGANIC PEROXIDE TYPE F, SOLID (DICUMYL PEROXIDE, 99%)
UN/NA Number: UN3110
IATA-DGR Class: 5.2
Packing Group: None
ERG Code: U145
Air Label: KEEP AWAY FROM HEAT.
IMDG:
Status: REGULATED MATERIAL.
Proper Shipping Name: ORGANIC PEROXIDE TYPE F, SOLID (DICUMYL PEROXIDE, 99%)
UN/NA Number: UN3110
Hazard Class: 5.2
Packing Group: None
EMS No.: F-J, S-R
Flash Point (掳F/掳C) > 200掳 F/ > 93掳 C
15. REGULATORY INFORMATION
International Inventories:
USA TSCA Inventory Status: All of the components of this product are listed on the US EPA TSCA
Inventory, or exempt from listing.
Canadian DSL: All of the components of this product are listed on the Canadian Domestic
Substances List.
European - EINECS: All of the components of this product are listed on EINECS, or exempt from
notification.
Japanese Chemical Inventory: All of the components of this product are listed on the JPENCS Inventory.
Philippines Chemical Inventory: All of the components of this product are found on the Philippines Inventory.
Australian Chemical Inventory: All of the components of this product are listed on the Australian Chemical
Inventory.
Korean Chemical Inventory: All of the components of this product are found on the Korean Existing
Chemical Substances List.
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State and Federal Regulations:
(Chemical Name, Wt. %, CAS No.)
Dicumyl Peroxide 99+% 80-43-3
New Jersey Right-to-Know List: Listed
New Jersey Trade Secret Registry N/A
Number(s):
SARA Section 311/ 312 Hazard Class: This product is classified as a SARA ACUTE HEALTH HAZARD.
This product is classified as a SARA FIRE HAZARD.
This product is classified as a SARA REACTIVE HAZARD.
Other Information: This product does not contain any ingredients subject to the reporting
requirements of SARA Title III, Section 313 (40 CFR Part 372).
16. OTHER INFORMATION
Prepared / Edited By: Christie B. Johnson 鈥? Regulatory Manager
Telephone Number: (267) 960-7943
Reference Number: 103199 PD
Revision Date: 07/16/2007
Additional Information: None.
Important Note: The information provided in this Safety Data Sheet is correct to the best of our
knowledge, information and belief at the date of its publication. The information
given is designed only as a guidance for safe handling, use, processing, storage,
transportation, disposal and release and is not to be considered a warranty or
quality specification. The information relates only to the specific material
designated and may not be valid for such material used in combination with any
other materials or in any process, unless specified in the text.
***END OF MSDS***
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