Material Safety Data Sheet
The MSDS format adheres to the standards and regulatory requirements of the Peoples Republic of China and may not meet regulatory requirements in other countries.
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POLYCHLOROPRENE RUBBER ALL IN SYNONYM LIST
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CHEMICAL PRODUCT
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Tradenames and Synonyms
CR1211 CR1212 CR1213
CR2321 CR2322 CR 2323
CR2441 CR2442 CR2443 CR2444
CR3221 CR3222 CR3223
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COMPOSITION/INFORMATION ON INGREDIENTS
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Components
Material CAS Number %
TALC, CONTAINING NO ASBESTOS FIBERS <1
2-CHLORO-1, 3-BUTADIENE POLYMERS & COPOLYMERS >98
WATER <1
Components (Remarks)
Material is not known to contain Toxic Chemicals under Section 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR part 372.
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HAZARDS IDENTIFICATION
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Potential Health Effects
ADDITIONAL HEALTH EFFECTS
Before using polychloroprene rubbers, read "Handling Precautions for Polychloroprene rubber.
POLYCHLOROPRENE RUBBER
ACUTE OR IMMEDIATE EFFECTS: ROUTES OF ENTRY AND SYMPTOMS
INGESTION One type of Polychloroprene rubber was tested for oral toxicity in rats. The LD-50 is in excess of 20, 000 milligrams per kilogram body weight which is low toxicity. Other types of Polychloroprene rubber are
predicted to have the same low toxicity. Ingestion is not a probable route of exposure. SKIN Patch tests were run with four types of Polychloroprene rubber on human volunteers. No skin reactions were shown. Results are predicted to be similar for the types of polychlororene rubber in this MSDS. EYE Mechanical irritation only.
INHALATION At processing temperatures above 200 C (392 F), fumes irritating to the eyes, nose, and throat may be produced. This exposure may result in reddening, tearing, and itching of the eyes and soreness in the nose and throat together with coughing.
CHRONIC EFFECT None are known.
TALC
Short-term over-exposure by inhalation to Talc may cause irritation of the nose, throat and lungs with cough, difficulty breathing or shortness of breath. Long-term over-exposure may lead to chronic lung disease with impaired lung function and abnormal chest x-rays. Increased susceptibility to the effects of Talc may be observed in persons with pre-existing disease of the lungs.
Carcinogenicity Information
None of the components present in this material at concentrations equal to or greater than 0.1% are listed by IARC, NTP, OSHA or ACGIH as a carcinogen.
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FIRST AID MEASURES
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First Aid
INHALATION
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Call a physician.
SKIN CONTACT
The compound is not likely to be hazardous by skin contact but cleansing the skin after use is advisable.
If molten material gets on skin, cool rapidly with cold water. Do not attempt to remove material from skin. Obtain medical treatment for thermal burn.
EYE CONTACT
In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Call a physician.
INGESTION
Not a probable route. However, in case of accidental ingestion, call a physician.
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FIRE FIGHTING MEASURES
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Flammable Properties
Flash Point : >260 C (>500 F)
Method : Open cup
Fire and Explosion Hazards:
HAZARDOUS COMBUSTION PRODUCTS: Complete combustion gives hydrogen chloride, carbon dioxide, sulfur dioxide and water. Incomplete combustion gives in addition carbon monoxide, organic acids, aldehydes, and alcohols. Extinguishing Media Water, Foam, Dry Chemical, CO2.
Fire Fighting Instructions
Wear self-contained breathing apparatus. Wear full protective equipment.
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ACCIDENTAL RELEASE MEASURES
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Safeguards (Personnel)
NOTE: Review FIRE FIGHTING MEASURES and HANDLING (PERSONNEL)
sections before proceeding with clean-up. Use appropriate
PERSONAL PROTECTIVE EQUIPMENT during clean-up.
Spill Clean Up
Recover undamaged and minimally contaminated material for reuse and reclamation.
Scrape up spilled polymer. Contaminated surfaces can be cleaned with a solvent.
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HANDLING AND STORAGE
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Storage
Store in a cool place. Keep container tightly closed.
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EXPOSURE CONTROLS/PERSONAL PROTECTION
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Engineering Controls
Use local ventilation to control fumes from hot processing.
Personal Protective Equipment
EYE/FACE PROTECTION
Wear safety glasses. Wear coverall chemical splash goggles and face shield when possibility exists for eye and face contact due to splashing or spraying of molten material. A full face mask respirator provides protection from eye irritation.
RESPIRATORS
A NIOSH/MSHA approved air purifying respirator with an organic vapor cartridge with a dust/mist filter may be permissible under certain circumstances where airborne concentrations are expected to exceed exposure limits. Protection provided by air purifying respirators is limited. Use a positive pressure air supplied respirator if there is any potential for an uncontrolled release, exposure levels are not known, or any other circumstances where
air purifying respirators may not provide adequate protection.
PROTECTIVE CLOTHING
If there is potential contact with hot/molten material, wear heat resistant clothing and footwear.
(EXPOSURE CONTROLS/PERSONAL PROTECTION - )
Exposure Guidelines
Applicable Exposure Limits
TALC, CONTAINING NO ASBESTOS FIBERS
PEL (OSHA) : Respirable dust, 1/2*(80 mg/m3 % SiO2) as 8 Hr TWA
TLV (ACGIH) : 2 mg/m3, respirable dust, 8 Hr. TWA, A4
PHYSICAL AND CHEMICAL PROPERTIES
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Physical Data
Melting Point : NA
% Volatiles : NA
Solubility in Water : Negligible
Odor : Mild characteristic
Form : chips
Color : Off white to tan
Specific Gravity : NA
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STABILITY AND REACTIVITY
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Chemical Stability
Stable at normal temperatures and storage conditions.
Conditions to Avoid
Temperatures above 200 C (392 F) .
Incompatibility with Other Materials
None reasonably foreseeable.
Decomposition
Hazardous gases or vapors can be released, including carbon monoxide, hydrogen chloride (HCl), organic acids, aldehydes, alcohols.
Polymerization
Polymerization will not occur.
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TOXICOLOGICAL INFORMATION
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Animal Data
TALC
Talc
Oral LD50: 920 mg/kg in rats
Inhalation 5 hour ALC: > 22 mg/L in rats
Long-term exposure by ingestion to Talc caused no significant decrease in life span.
A single exposure by inhalation to high doses of Talc caused irregular respiration and lacrimation but no evidence of an inflammatory reaction. Repeated exposure caused no adverse effects on survival or histological changes. Long-term exposure in rats caused chronic inflammation, impaired pulmonary function and histopathological changes of the lungs. One lifetime inhalation study reports an increased incidence of lung and adrenal tumors in rats exposed to Talc. The lung tumors and chronic inflammation occurred at dust levels which overwhelmed
the animals lung clearance mechanism and, therefore, are of questionable biological relevance for man. The adrenal tumors are unlikely to be a direct effect of Talc exposure and are of questionable relevance. No increases in tumors were observed in mice. Talc has not caused developmental toxicity in animals. No animal data are available to define the reproductive toxicity of Talc. Tests have shown that Talc does not cause genetic damage in
bacterial or mammalian cell cultures, or in animals. Animal data indicate that Talc does not cause permanent genetic damage in reproductive cells of mammals (does not cause heritable genetic damage).
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ECOLOGICAL INFORMATION
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Ecotoxicological Information
AQUATIC TOXICITY:
No information is available. Toxicity is expected to be low based on insolubility in water.
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DISPOSAL CONSIDERATIONS
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Waste Disposal
Preferred options for disposal are (1) recycling, (2) incin- eration with energy recovery, and (3) landfill. The high fuel value of this product makes option 2 very desirable for material that cannot be recycled. Treatment, storage, transportation, and disposal must be in accordance with applicable federal,
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TRANSPORTATION INFORMATION
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Shipping Information
DOT
Proper Shipping Name : Not regulated.
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OTHER INFORMATION
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The data in this Material Safety Data Sheet relates only to the specific material designated herein and does not relate to use in combination with any other material or in any process.
This information is based upon technical information believed to be reliable. It is subject to revision as additional knowledge and experience is gained.
End of MSDS
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