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MATERIAL SAFETY DATA SHEET
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1. IDENTIFICATION OF THE SUBSTANCE/PREPARATION AND OF THE
COMPANY/UNDERTAKING
24-Hour Emergency Phone Number: 989-636-4400
Product Name: VORASTAR* HB 6558 Isocyanate
GMID: 240830 Collective ID: 296
The Dow Chemical Company, Midland, MI 48674
Customer Service: 800-366-4740
2. COMPOSITION/INFORMATION ON INGREDIENTS
CHEMICAL CAS# CONCENTRATION
Diphenylmethane Diisocyanate 26447-40-5 10-30, 30-60%
containing 4,4'Methylene bisphenyl
isocyanate CAS# 101-68-8
Polyurethane prepolymer of proprietary 30-60, 60-100%
MDI and polyol
3. HAZARDS IDENTIFICATION
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Sprayed or heated material harmful if inhaled. May cause allergic skin
reaction. May cause allergic respiratory reaction and lung injury. Avoid
temperatures above 105F (41C). Toxic flammable gases and heat are released
under decomposition conditions. Toxic fumes may be released in fire
situations. Reacts slowly with water, releasing carbon dioxide, which can
cause pressure buildup and rupture of closed containers. Elevated
temperatures accelerate this process.
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POTENTIAL HEALTH EFFECTS (See Section 11 for toxicological data.)
EYE: May cause moderate eye irritation. May cause very slight transient
(temporary) corneal injury.
SKIN: Prolonged or repeated exposure may cause slight skin irritation. May
cause allergic skin reaction in susceptible individuals. Animal studies have
shown that skin contact with isocyanates may play a role in respiratory
sensitization. May stain skin. A single prolonged exposure is not likely
to result in the material being absorbed in harmful amounts.
INGESTION: Single dose oral toxicity is considered to be low. No hazards
anticipated from swallowing small amounts incidental to normal handling
operations.
INHALATION: At room temperature, vapors are minimal due to low vapor
pressure. However, certain operations may generate vapor or aerosol
concentrations sufficient to cause irritation or other adverse effects.
Such operations include those in which the material is heated, sprayed or
otherwise mechanically dispersed such as drumming, venting or pumping.
Excessive exposure may cause irritation to upper respiratory tract and
lungs, and pulmonary edema (fluid in the lungs). May cause respiratory
sensitization in susceptible individuals. MDI concentrations below the
exposure guidelines may cause allergic respiratory reactions in individuals
already sensitized. Symptoms may include coughing, difficult breathing and
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VORASTAR* HB 6558 Isocyanate
a feeling of tightness in the chest. Effects may be delayed. Decreased
lung function has been associated with overexposure to isocyanates.
SYSTEMIC (OTHER TARGET ORGAN) EFFECTS: Tissue injury in the upper
respiratory tract and lungs has been observed in laboratory animals after
repeated excessive exposures to MDI/polymeric MDI aerosols.
CANCER INFORMATION: Lung tumors have been observed in laboratory animals
exposed to aerosol droplets of MDI/Polymeric MDI (6 mg/m3) for their
lifetime. Tumors occurred concurrently with respiratory irritation and lung
injury. Current exposure guidelines are expected to protect against these
effects reported for MDI.
TERATOLOGY (BIRTH DEFECTS): In laboratory animals, MDI/polymeric MDI did not
cause birth defects; other fetal effects occurred only at high doses which
were toxic to the mother.
4. FIRST-AID MEASURES
EYE: Irrigate with flowing water immediately and continuously for 15
minutes. Consult medical personnel.
SKIN: Remove material from skin immediately by washing with soap and plenty
of water, (warm water is preferable if readily available). Remove
contaminated clothing and shoes while washing. Seek medical attention if
irritation persists. An MDI skin decontamination study demonstrated that
cleaning very soon after exposure is important, and that a polyglycol-based
skin cleanser or corn oil may be more effective than soap and water.
INGESTION: If swallowed, seek medical attention. Do not induce vomiting
unless directed to do so by medical personnel.
INHALATION: Remove to fresh air. If not breathing, give artificial
respiration. If breathing is difficult, oxygen should be administered by
qualified personnel. Call a physician or transport to a medical facility.
NOTE TO PHYSICIAN: No specific antidote. Supportive care. Treatment based
on judgment of the physician in response to reactions of the patient. May
cause respiratory sensitization or asthma-like symptoms. Bronchodilators,
expectorants, and antitussives may be of help. Respiratory symptoms,
including pulmonary edema, may be delayed. Persons receiving significant
exposure should be observed for 24-48 hours for signs of respiratory
distress.
5. FIRE-FIGHTING MEASURES
FLAMMABLE PROPERTIES
FLASH POINT: >400F, >204C
METHOD USED: PMCC, ASTM D93
AUTOIGNITION TEMPERATURE: >1100F, 600C
FLAMMABILITY LIMITS
LFL: Not applicable.
UFL: Not applicable.
HAZARDOUS COMBUSTION PRODUCTS: During a fire, smoke may contain the original
material in addition to unidentified toxic and/or irritating compounds.
Hazardous combustion products may include but are not limited to: nitrogen
oxides, isocyanates, hydrogen cyanide, carbon monoxide, and carbon dioxide.
OTHER FLAMMABILITY INFORMATION: Product reacts with water. Reaction may
produce heat and/or gases. Reaction may be violent. Container may rupture
from gas generation in a fire situation. Violent steam generation or
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eruption may occur upon application of direct water stream to hot liquids.
Dense smoke is produced when product burns. Spills of these organic liquids
on hot fibrous insulations may lead to lowering of the atoignition
temperatures possibly resulting in spontaneous combustion.
EXTINGUISHING MEDIA: Carbon dioxide, dry chemical, foam, water fog or fine
spray. Alcohol resistant foams (ATC type) are preferred if available.
General purpose synthetic foams (including AFFF) or protein foams may
function, but much less effective. Do not use direct water stream. May
spread fire.
FIRE FIGHTING INSTRUCTIONS: Keep people away. Isolate fire area and deny
unnecessary entry. Stay upwind. Keep out of low areas where gases (fumes)
can accumulate. Water is not recommended but may be applied in very large
quantities as a fine spray when other extinguishing agents are not
available. Contain fire water run-off if possible. Do not use direct water
stream. May spread fire. Fight fire from protected location or safe
distance. Consider use of unmanned hose holder or monitor nozzles. Use water
spray to cool fire exposed containers and fire affected zone until fire is
out. Immediately withdraw all personnel from area in case of rising sound
from venting safety device or discoloration of the container.
Move container from fire area if this is possible without hazard.
PROTECTIVE EQUIPMENT FOR FIRE FIGHTERS: Wear positive-pressure self-
contained breathing apparatus (SCBA) and protective fire fighting clothing
(includes fire fighting helmet, coat, pants, boots, and gloves). Avoid
contact with this material during fire fighting operations. If contact is
likely, change to full chemical resistant clothing with SCBA. This will not
provide sufficient fire protection; consider fighting fire from a remote
location. For protective equipment in post-fire or non-fire clean-up
situations, refer to the relevant sections.
6. ACCIDENTAL RELEASE MEASURES
PROTECT PEOPLE: Avoid any contact. Barricade area. Clear non-emergency
personnel from area. Keep upwind of spill. Ventilate area of leak or spill.
The area must be evacuated and reentered by persons equipped for
decontamination. Use appropriate safety equipment. Ventilate area of leak or
spill. If available, use foam to suppress vapors. For additional
information, refer to "Exposure Controls/Personal Protection", MSDS Section
8. See Section 10, Stability and Reactivity.
PROTECT THE ENVIRONMENT: Contain liquid to prevent contamination of soil,
surface water or ground water. Keep out of ditches, sewers, and water
supplies. Should the product enter sewers or drains, it should be pumped
into a covered, vented container; the cover should be placed loosely on the
container but not made pressure tight. Move to a well-ventilated area.
Emergency services may need to be called to assist in the cleanup
operation.
CLEAN-UP: Supplies of suitable decontaminant should always be kept
available. Absorb with material such as: sawdust, vermiculite, dirt, sand,
clay, cob grit, Milsorb. Avoid materials such as cement powder. Collect
material in suitable and properly labeled OPEN containers. Do not place in
sealed container. Prolonged contact with water results in a chemical
reaction which may result in rupture of the container. Place in: polylined
fiber pacs, plastic drums, or properly labeled metal containers. Remove to a
well ventilated area. Clean up floor areas. Attempt to neutralize by
suitable decontaminant solution: Formulation 1: sodium carbonate 5-10%;
liquid detergent 0.2-2%; water to make up to 100%. OR Formulation 2:
Concentrated ammonia solution 3-8%; liquid detergent 0.2-2%; water to make
up to 100%. If ammonia is used, use good ventilation to prevent vapor
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MATERIAL SAFETY DATA SHEET
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VORASTAR* HB 6558 Isocyanate
exposure. If you have any questions on how to neutralize call The Dow
Chemical Company. Please refer to Disposal Information, MSDS Section 13.
See Section 7 and 15 for more specific information.
7. HANDLING AND STORAGE
HANDLING: Avoid contact of this product with water at all times during
handling and storage. Use only with adequate ventilation. Keep equipment
clean. Use disposable containers and tools where possible. Do not eat,
drink, or smoke in working area. Refer to Exposure Controls/Personal
Protection, Section 8, of the MSDS.
STORAGE: Store in a dry place. Store between 75F-105F (24C-41C). Keep
containers tightly closed when not in use. Protect from atmospheric
moisture. Maintain a nitrogen atmosphere. Do not store product contaminated
with water to prevent potentially hazardous reaction.
See Section 10, "Stability & Reactivity".
8. EXPOSURE CONTROL/PERSONAL PROTECTION
ENGINEERING CONTROLS: Use only with adequate ventilation.
Provide general and/or local exhaust ventilation to control
airborne levels below the exposure guidelines. Exhaust systems
should be designed to move the air away from the source of
vapor/aerosol generation and the people working at this point.
Odor is inadequate warning of excessive exposure.
PERSONAL PROTECTIVE EQUIPMENT
EYE/FACE PROTECTION: Use chemical goggles.
SKIN PROTECTION Use protective clothing impervious to this
material. Selection of specific items such as faceshield,
gloves, boots, apron, or full-body suit will depend on
operation. Remove contaminated clothing immediately, wash
skin area with soap and water (warm water if available) and
launder clothing before reuse. Items which cannot be decontaminated, such as
shoes, belts and watchbands, should be removed and destroyed.
RESPIRATORY PROTECTION: Atmospheric levels should be maintained
below the exposure guideline. When atmospheric levels may
exceed the exposure guideline, use an approved air-purifying
respirator equipped with an organic vapor sorbent and a
particle filter. For situations where the atmospheric
levels may exceed the level for which an air-purifying
respirator is effective, use a positive-pressure
air-supplying respirator (airline or self-contained
breathing apparatus). For emergency response or for
situations where the atmospheric level is unknown, use an
approved positive-pressure self-contained breathing
apparatus.
EXPOSURE GUIDELINES(S):
Methylene bisphenyl isocyanate (MDI): ACGIH TLV is 0.005 ppm TWA and OSHA
PEL is 0.02 ppm Ceiling.
PELs are in accord with those recommended by OSHA, as in the 1989 revision
of PELs.
9. PHYSICAL AND CHEMICAL PROPERTIES
APPEARANCE/PHYSICAL STATE: Brown liquid.
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VORASTAR* HB 6558 Isocyanate
ODOR: Slightly musty.
VAPOR PRESSURE: <1 x 10(-5) mmHg @ 25C
VAPOR DENSITY: 8.5 (air=1)
BOILING POINT: 410F, 210C @ 5 mmHg
SOLUBILITY IN WATER: Insoluble in water, reacts with evolution
of CO2.
SPECIFIC GRAVITY: 1.24 @ 20C
10. STABILITY AND REACTIVITY
CHEMICAL STABILITY: Stable under recommended storage conditions.
See Section 7, Storage.
CONDITIONS TO AVOID: Avoid temperatures above 105F, 41C. Avoid temperatures
below 75F, 24C. Can react with itself at temperatures above 320F, 160C.
Product can decompose at elevated temperatures. Generation of gas during
decomposition can cause pressure in closed systems. Pressure build-up can
be rapid. Avoid moisture. Material reacts slowly with water, releasing
carbon dioxide, which can cause pressure buildup and rupture of closed
containers. Elevated temperatures accelerate this reaction.
INCOMPATIBILITY WITH OTHER MATERIALS: Avoid contact with acids, water,
alcohols, amines, ammonia, bases, moist air, and strong oxidizers. Avoid
contact with metals such as aluminum, brass, copper, galvanized metals, tin,
zinc. Avoid contact with moist organic absorbents. Reaction with water will
generate carbon dioxide and heat. Generation of gas can cause pressure
buildup in closed systems. Avoid unintended contact with polyols. The
reaction of polyols and isocyanates generate heat. Diisocyanates react with
many materials and the rate of reaction increases with temperature as well
as increased contact, these reactions can become violent. Contact is
increased by stirring or if the other material mixes with the diisocyanate.
Diisocyanates are not soluble in water and are denser than water and sink to
the bottom, but react slowly at the interface. The reaction forms carbon
dioxide gas and a layer of solid polyurea. See Hazardous Polymerization
Section.
HAZARDOUS DECOMPOSITION PRODUCTS: Hazardous decomposition products depend
upon temperature, air supply and the presence of other materials. Gases are
released during decomposition.
HAZARDOUS POLYMERIZATION: Can occur. Polymerization can be catalyzed by:
strong bases and water. Can react with itself at temperatures above 320F
(160C).
11. TOXICOLOGICAL INFORMATION
TOXICOLOGICAL INFORMATION (See Section 3 for Potential Health
Effects)
ACUTE:
SKIN: The LD50 for skin absorption in rabbits is > 2000 mg/kg.
INGESTION: The oral LD50 for rats is > 10,000 mg/kg.
MUTAGENICITY (EFFECTS ON GENETIC MATERIAL): Mutagenicity data on MDI are
inconclusive. MDI was weakly positive in some in-vitro (test tube) studies;
other in-vitro studies were negative. A mutagenicity study in animals was
negative.
12. ECOLOGICAL INFORMATION
ECOLOGICAL INFORMATION
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VORASTAR* HB 6558 Isocyanate
ENVIRONMENTAL FATE
MOVEMENT & PARTITIONING: Based on information for MDI and polymeric MDI. In
the aquatic or terrestrial environment, movement is expected to be limited
by its reactivity with water forming predominantly insoluble polyureas.
DEGRADATION & PERSISTENCE: Based on information for MDI and polymeric MDI.
In the aquatic and terrestrial environment, material reacts with water
forming predominantly insoluble polyureas which appear to be stable. In the
atmospheric environment, material is expected to have a short tropospheric
half-life, based on calculations and by analogy with related diisocyanates.
ECOTOXICITY: Based on information for MDI and polymerc MDI. The measured
ecotoxicity is that of the hydrolzed product, generally under conditions
maximizing production of soluble species. Material is practically non-toxic
to aquatic organisms on an acute basis (LC50/EC50 > 100 mg/L in most
sensitive species). The LC50 in earthworm Eisenia foetida is > 1000 mg/kg.
13. DISPOSAL CONSIDERATIONS
DISPOSAL CONSIDERATIONS (See Section 15 for Regulatory Information)
DISPOSAL: DO NOT DUMP INTO ANY SEWERS, ON THE GROUND, OR INTO ANY BODY OF
WATER. All disposal methods must be in compliance with all Federal,
State/Provincial and local laws and regulations. Regulations may vary in
different locations. Waste characterizations and compliance with applicable
laws are the responsibility solely of the waste generator. THE DOW CHEMICAL
COMPANY HAS NO CONTROL OVER THE MANAGEMENT PRACTICES OR MANUFACTURING
PROCESSES OF PARTIES HANDLING OR USING THIS MATERIAL. THE INFORMATION
PRESENTED HERE PERTAINS ONLY TO THE PRODUCT AS SHIPPED IN ITS INTENDED
CONDITION AS DESCRIBED IN MSDS SECTION 2 (Composition/Information On
Ingredients).
FOR UNUSED & UNCONTAMINATED PRODUCT, the preferred options include sending
to a licensed, permitted: recycler, reclaimer, incinerator or other thermal
destruction device.
For additional information, refer to:
- Handling & Storage Information, MSDS Section 7.
- Stability & Reactivity Information, MSDS Section 10.
- Regulatory Information, MSDS Section 15.
As a service to its customers, Dow can provide names of information
resources to help identify waste management companies and other facilities
which recycle, reprocess or manage chemicals or plastics, and that manage
used drums. Telephone Dow's Customer Information Center at 800-258-2436 or
989-832-1556 for further details.
14. TRANSPORT INFORMATION
DEPARTMENT OF TRANSPORTATION (D.O.T.):
For D.O.T. regulatory information, if required, consult transportation
regulations, product shipping papers, or your Dow representative.
CANADIAN TDG INFORMATION
For TDG regulatory information, if required, consult transportation
regulations, product shipping papers, or your Dow representative.
15. REGULATORY INFORMATION
NOTICE: The information herein is presented in good faith and believed to be
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VORASTAR* HB 6558 Isocyanate
accurate as of the effective date shown above. However, no warranty,
expressed or implied is given. Regulatory requirements are subject to change
and may differ from one location to another; it is the buyer's
responsibility to ensure that its activities comply with federal, state or
provincial, and local laws. The following specific information is made for
the purpose of complying with numerous federal, state or provincial, and
local laws and regulations. See other sections for health and safety
information.
REGULATORY INFORMATION (Not meant to be all-inclusive--selected
regulations represented)
U.S. REGULATIONS
----------------
SARA 313 INFORMATION: This product contains the following subject to the
reporting requirements of Section 313 of Title III of the Superfund
Amendments and Reauthorization Act of 1986 and 40 CFR Part 372:
CHEMICAL NAME CAS NUMBER
---------------------------------------- -----------
METHYLENE BIS(PHENYLISOCYANATE)(MDI) 000101-68-8
SARA HAZARD CATEGORY: This product has been reviewed according to the EPA
"Hazard Categories" promulgated under Sections 311 and 312 of the Superfund
Amendment and Reauthorization Act of 1986 (SARA Title III) and is
considered, under applicable definitions, to meet the following categories:
An immediate health hazard
A delayed health hazard
TOXIC SUBSTANCES CONTROL ACT (TSCA):
All ingredients are on the TSCA inventory or are not required to be listed
on the TSCA inventory.
STATE RIGHT-TO-KNOW: The following product components are cited on certain
state lists as mentioned. Non-listed components may be shown in the
composition section of the MSDS.
CHEMICAL NAME CAS NUMBER LIST
------------------------------------------- ----------- ------------
METHYLENE BIS(PHENYLISOCYANATE)(MDI) 000101-68-8 NJ3, PA1,
NJ2, PA3
NJ2=New Jersey Environmental Hazardous Substance
NJ3=New Jersey Workplace Hazardous Substance
PA1=Pennsylvania Hazardous Substance
PA3=Pennsylvania Environmental Hazardous Substance
OSHA HAZARD COMMUNICATION STANDARD:
This product is a "Hazardous Chemical" as defined by the OSHA Hazard
Communication Standard, 29 CFR 1910.1200.
COMPREHENSIVE ENVIRONMENTAL RESPONSE COMPENSATION AND LIABILITY ACT (CERCLA,
or SUPERFUND):
This product contains the following substance(s) listed as "Hazardous
Substances" under CERCLA which may require reporting of releases:
Category:
Chemical Name CAS# RQ
-------------------------------- ----------- --
Methylene bisphenyl isocyanate 000101-68-8 5000
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CANADIAN REGULATIONS
--------------------
WHMIS INFORMATION: The Canadian Workplace Hazardous Materials Information
System (WHMIS) Classification for this product is:
D2A - respiratory tract sensitizer
D2B - eye or skin irritant
D2B - skin sensitizer
Refer elsewhere in the MSDS for specific warnings and safe handling
information. Refer to the employer's workplace education program.
-----
CPR STATEMENT: This product has been classified in accordance with the
hazard criteria of the Canadian Controlled Products Regulations (CPR) and
the MSDS contains all the information required by the CPR.
-----
HAZARDOUS PRODUCTS ACT INFORMATION: This product contains the following
ingredients which are Controlled Products and/or on the Ingredient
Disclosure List (Canadian HPA section 13 and 14):
COMPONENTS: CAS #
METHYLENE BIS(PHENYL- 000101-68-8
ISOCYANATE) (MDI)
CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA):
All substances in this product are listed on the Canadian Domestic
Substances List (DSL) or are not required to be listed.
16. OTHER INFORMATION
NATIONAL FIRE PROTECTION ASSOCIATION (NFPA) RATINGS:
Health 3
Flammability 1
Reactivity 1
OTHER INFORMATION: The reaction of polyols and isocyanates
generate heat. Contact of the reacting materials with skin or
eyes can cause severe burns and may be difficult to remove from
the affected areas. In addition, such contact increases the
risk of isocyanate vapors.
(TM),*, OR (R) INDICATES A TRADEMARK OF THE DOW CHEMICAL COMPANY
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