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1. PRODUCT AND COMPANY IDENTIFICATION

COREACTANT 9L10

Revision Date: 05/10/2012

Supplier ROHM AND HAAS CHEMICALS LLC

A Subsidiary of The Dow Chemical Company

100 INDEPENDENCE MALL WEST

PHILADELPHIA, PA 19106-2399 United States

For non-emergency information contact: 215-592-3000

Emergency telephone number

1 800 424 9300

Local emergency telephone number

989-636-4400

®TM*Trademark of The Dow Chemical Company (“Dow”)or an affiliated company of Dow

2. COMPOSITION/INFORMATION ON INGREDIENTS

Component CAS-No. Concentration

Polymeric isocyanate 28182-81-2 75.0 - 77.0 %

Isophorone diisocyanate 4098-71-9 < 0.4 %

Ethyl acetate 141-78-6 23.0 - 25.0 %

3. HAZARDS IDENTIFICATION

Emergency Overview

Appearance

Form liquid 

Colour Straw color 

Odour Solvent odor 

Material Safety Data Sheet
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Hazard Summary WARNING!

Flammable.

The product causes irritation of eyes, skin and mucous membranes.

severe irritation of the mouth, throat, and digestive tract

May cause sensitization by inhalation and skin contact.

Shortness of breath

Bronchial constriction may develop after extensive exposure to 

isocyanates, even in individuals who have not been shown to be 

previously sensitized.

Causes liver and kidney effects.

central nervous system (CNS) effects

Potential Health Effects

Primary Routes of Entry: Inhalation

 Skin contact

 Eye contact

Eyes: The solvent(s) in this material can cause the following:

Irritation

conjunctivitis

Pain

temporary corneal injury

tearing

Skin: Material can cause the following:

Moderate irritation.

reddening

- skin sensitization even at low concentrations in susceptible individuals Prolonged or repeated 

overexposure to the solvent(s) in this material can cause the following: defatting and drying of the skin 

which can lead to irritation and dermatitis

Ingestion: Material can cause the following:

severe irritation of the mouth, throat, and digestive tract

Nausea

narcosis

Headache

Inhalation: Inhalation of solvent vapor or mist can cause the following:

irritation of nose, throat, and lungs

Headache

Nausea

Vomiting

central nervous system (CNS) effects

- respiratory sensitization (isocyanates)

tightness in the chest

Shortness of breath

lung damage

liver damage

kidney damage

Chronic Exposure: Prolonged overexposure to ethyl acetate can cause the following: - kidney 

damage - liver damage - heart damage - lung damage - blood effects - nervous system effects
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Long term exposure to diisocyanates may cause lung damage, including reduced lung function, which 

may be permanent.

Carcinogenicity

Component List Classification

4. FIRST AID MEASURES

Inhalation: Move to fresh air. Give artificial respiration if breathing has stopped. Get prompt medical 

attention. In case of shortness of breath, give oxygen. 

Skin contact: Remove contaminated clothing. Wash off with soap and plenty of water. Wash 

contaminated clothing before re-use. Do not take clothing home to be laundered. Consult a 

physician. 

Eye contact: Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. 

Ingestion: Drink 1 or 2 glasses of water. Consult a physician. If vomiting occurs spontaneously, keep 

airway clear. Never give anything by mouth to an unconscious person. 

Notes to physician: Bronchial constriction may develop after extensive exposure to isocyanates, 

even in individuals who have not been shown to be previously sensitized. MATERIAL IS SEVERELY 

IRRITATING. It may not be advisable to induce vomiting. Possible mucosal damage may 

contraindicate the use of gastric lavage. 

5. FIREFIGHTING MEASURES

Flash point 5 °C ( 41.00 °F ) SETAFLASH CLOSED CUP

Ignition temperature 426.0 °C ( 798.80 °F) Ethyl acetate

Lower explosion limit 2.20 % volEthyl acetate

Upper explosion limit 11.50 % volEthyl acetate

Suitable extinguishing media:Use the following extinguishing media when fighting fires involving this 

material:

Carbon dioxide (CO2)

Dry powder

Foam

Water in very large quantities.

Specific hazards during firefighting: Vapors can travel to a source of ignition and flash back. 

Heated material can form flammable or explosive vapors with air. Closed containers may rupture via 

pressure build-up when exposed to fire or extreme heat. During a fire, irritating and highly toxic gases 

and/or fumes may be generated during combustion or decomposition. DO NOT permit water to enter 

containers. Closed containers may explode when heated or contents contaminated with water. 

Special protective equipment for firefighters: In the event of fire, wear self-contained breathing 

apparatus. 

Further information: EXPLOSION HAZARD. Fight advanced fires from a protected location.

Cool closed containers exposed to fire with water spray.

DO NOT permit water to enter containers.
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Remain upwind.

Avoid breathing smoke.

Contain run-off.

6. ACCIDENTAL RELEASE MEASURES

Personal precautions

Appropriate protective equipment must be worn when handling a spill of this material. See SECTION 

8, Exposure Controls/Personal Protection, for recommendations.

MATERIAL IS A POTENTIAL SENSITIZER.

If exposed to material during clean-up operations, IMMEDIATELY remove all contaminated clothing 

and wash exposed skin areas with soap and water. See SECTION 4, First Aid Measures, for further 

information.

Wash contaminated clothing before re-use.

Do not take clothing home to be laundered.

Environmental precautions

WARNING: KEEP SPILLS AND CLEANING RUNOFFS OUT OF MUNICIPAL SEWERS AND OPEN 

BODIES OF WATER.

Methods for cleaning up

Eliminate all ignition sources.

Evacuate personnel to safe areas.

Ventilate the area.

Floor may be slippery; use care to avoid falling.

Soak up with inert absorbent material (e.g. sand, silica gel, acid binder, universal binder, sawdust).

Sweep up or vacuum up spillage and collect in suitable container for disposal.

No sparking tools should be used.

Avoid all contact.

Avoid breathing vapor.

NOTE: Spills on porous surfaces can contaminate groundwater.

7. HANDLING AND STORAGE

Handling

Vapors can be evolved when material is heated during processing operations. See SECTION 8, 

Exposure Controls/Personal Protection, for types of ventilation required. Use non-sparking tools and 

grounding cables when transferring. This material is a potential sensitizer. See SECTION 8, 

Exposure Controls/Personal Protection, prior to handling. Wash after handling and shower at end of 

work period. Persons susceptible to skin sensitisation problems or asthma, allergies, chronic or 

recurrent respiratory disease should not be employed in any process in which this mixture is being 

used. 

Other data: STIR WELL BEFORE USE. 

Storage

Storage conditions: Avoid temperature extremes during storage; ambient temperature preferred. 

Store away from excessive heat (e.g. steampipes, radiators), from sources of ignition and from 

reactive materials. Material can burn; limit indoor storage to approved areas equipped with automatic 

sprinklers. Store out of direct sunlight in a cool place. Keep containers tightly closed in a cool, wellventilated place. Avoid all ignition sources. Ground all metal containers during storage and handling. 

Keep material dry. Moisture may affect product quality. 
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Further information on storage conditions: Residual vapors in empty containers may explode on 

ignition. DO NOT cut, drill, grind or weld on or near container. 

Further information:

CONTAINERS MAY BE HAZARDOUS WHEN EMPTY. Since emptied containers retain product 

residue follow all MSDS and label warnings even after container is emptied.

Improper disposal or re-use of this container may be dangerous and illegal. Refer to applicable local, 

state and federal regulations.

8. EXPOSURE CONTROLS/PERSONAL PROTECTION

Exposure limit(s)

Exposure limits are listed below, if they exist.

Component Regulation Type of listing Value

Polymeric isocyanate Rohm and Haas TWA 0.1 mg/m3 

Polymeric isocyanate Rohm and Haas STEL 0.3 mg/m3 

Isophorone diisocyanate Rohm and Haas TWA 0.005 ppm

Isophorone diisocyanate Rohm and Haas STEL 0.02 ppm

Isophorone diisocyanate ACGIH TWA 0.005 ppm

Isophorone diisocyanate OSHA P0 TWA 0.005 ppm

Isophorone diisocyanate OSHA P0 STEL 0.02 ppm

Isophorone diisocyanate NIOSH REL TWA 0.045 mg/m3 0.005 

ppm

Isophorone diisocyanate NIOSH REL ST 0.18 mg/m3 0.02 ppm

Ethyl acetate Rohm and Haas TWA 150 ppm

Ethyl acetate Rohm and Haas STEL 300 ppm

Ethyl acetate ACGIH TWA 400 ppm

Ethyl acetate OSHA P1 TWA 1,400 mg/m3 400 ppm

Ethyl acetate OSHA P0 TWA 1,400 mg/m3 400 ppm

Ethyl acetate NIOSH REL TWA 1,400 mg/m3 400 ppm

Exposure controls

Engineering measures: Use explosion-proof local exhaust ventilation with a minimum capture 

velocity of 100 ft/min (0.5 m/sec) at the point of vapor evolution. Refer to the current edition of 

Industrial Ventilation: A Manual of Recommended Practice published by the American Conference of 

Governmental Industrial Hygienists for information on the design, installation, use, and maintenance of 

exhaust systems. 

Protective measures: Facilities storing or utilizing this material should be equipped with an eyewash 

facility and a safety shower. 

Individual protection measures

Eye/face protection: Use chemical splash goggles (ANSI Z87.1 or approved equivalent). 

Eye protection worn must be compatible with respiratory protection system employed. 

Skin protection

Hand protection: Chemical-resistant gloves should be worn whenever this material is 

handled. The glove(s) listed below may provide protection against permeation. 

(Gloves of other chemically resistant materials may not provide adequate protection): 

VITON Synthetic Rubber (registered Trademark of Dupont Dow Elastomers) 

Polyvinyl alcohol 4H Glove (Trademark of Safety 4 A/S of Denmark) Gloves should 
COREACTANT 9L10

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be removed and replaced immediately if there is any indication of degradation or 

chemical breakthrough. Rinse and remove gloves immediately after use. Wash 

hands with soap and water. 

Other protection: Use chemically resistant apron or other impervious clothing to 

avoid prolonged or repeated skin contact. Where splashing is possible, full chemically 

resistant protective clothing (e.g. acid suit) and boots are required. 

Respiratory protection: A respiratory protection program meeting OSHA 1910.134 and ANSI 

Z88.2 requirements or equivalent must be followed whenever workplace conditions warrant a 

respirator‟s use. None required if airborne concentrations are maintained below the exposure 

limit listed in Exposure Limit Information. Above the exposure limit: Wear a properly fitted 

NIOSH approved (or equivalent) self-contained breathing apparatus in the pressure demand 

mode, OR full-facepiece, airline respirator in the pressure demand mode with emergency 

escape provision. 

9. PHYSICAL AND CHEMICAL PROPERTIES

Appearance

Form liquid 

Colour Straw color 

Odour Solvent odor 

pH Not Applicable

Melting point/range -84.00 °C ( -119.20 °F) Ethyl acetate

Boiling point/boiling range 77 °C ( 170.60 °F) Ethyl acetate

Flash point 5 °C ( 41.00 °F) SETAFLASH CLOSED CUP

Evaporation rate 6.20 Ethyl acetate

Lower explosion limit 2.20 % volEthyl acetate

Upper explosion limit 11.50 % volEthyl acetate

Vapour pressure 97.3333 mmHg at 20 °C (68.00 °F) Ethyl acetate

Relative vapour density 3.0Ethyl acetate

Relative density 1.06

Water solubility Reacts

Autoignition temperature 426 °C (798.80 °F) Ethyl acetate

Viscosity, dynamic no data availableno data available

Percent volatility 24 - 26 % 

NOTE: The physical data presented above are typical values and should not be construed as a 

specification.

10. STABILITY AND REACTIVITY

Hazardous reactions This material is considered stable.

However, keep away from moisture, heat or flame.

However, this material can undergo hazardous polymerization. See 

Hazardous Polymerization for conditions to avoid.
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Materials to avoid Avoid contact with the following: Strong Oxidizers Acids Water Bases 

Amines 

Hazardous 

decomposition 

products

Thermal decomposition may yield the following:, Hydrogen cyanide 

(hydrocyanic acid), isocyanate monomers, acetaldehyde, 

polymerisation Hazardous polymerization will also occur if contaminated with the 

following:

- water (moisture)

11. TOXICOLOGICAL INFORMATION

Toxicological information on this product or its components appear in this section when such data is 

available.

No toxicity data are available for this material.

Component: Polymeric isocyanate

Acute oral toxicity LD50 rat estimated> 5,000 mg/kg

As product:

Single dose oral LD50 has not been determined.

For the major component(s):

Component: Isophorone diisocyanate

Acute oral toxicity LD50 rat 4,825 mg/kg

Component: Ethyl acetate

Acute oral toxicity LD50 human 6,100 mg/kg

Component: Ethyl acetate

Acute oral toxicity LD50 rat > 4,500 mg/kg

Component: Polymeric isocyanate

Acute inhalation 

toxicity

LC50 rat 4 Hour 4.63 mg/l

As product:

The LC50 has not been determined.

Information refers to the main component.

Component: Isophorone diisocyanate

Acute inhalation 

toxicity

LC50 rat 0.67 mg/l

aerosol

Component: Ethyl acetate

Acute inhalation 

toxicity

LC50 rabbit 4 Hour > 28.6 mg/l

Prolonged excessive exposure may cause adverse effects.

Symptoms may include headache, dizziness and drowsiness, 

progressing to incoordination and unconsciousness.

Component: Polymeric isocyanate
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Acute dermal toxicity LD50 rabbit estimated> 5,000 mg/kg

As product:

The dermal LD50 has not been determined.

For the major component(s):

Component: Isophorone diisocyanate

Acute dermal toxicity LD50 rat >7,000 mg/kg

Component: Ethyl acetate

Acute dermal toxicity LD50 rabbit > 17,900 mg/kg

Component: Polymeric isocyanate

Skin irritation rabbit slight irritation

Component: Isophorone diisocyanate

Skin irritation rabbit OECD Test Guideline 404 Corrosive

Component: Ethyl acetate

Skin irritation practically non-irritating

May cause drying and flaking of the skin.

Component: Polymeric isocyanate

Eye irritation rabbit Eye irritation

Component: Isophorone diisocyanate

Eye irritation rabbit OECD Test Guideline 405 Severe eye irritation

Component: Ethyl acetate

Eye irritation slight irritation

May cause slight eye irritation.

May cause slight temporary corneal injury.

Vapor may cause eye irritation experienced as mild discomfort and 

redness.

Component: Polymeric isocyanate

Sensitisation Skin and respiratory sensitizer Causes sensitization.

Component: Ethyl acetate

Sensitisation guinea pig Did not cause sensitization on laboratory animals. Not a 

sensitizer.

Component: Polymeric isocyanate

Carcinogenicity: No relevant information found. 

Component: Polymeric isocyanate

Reproductive toxicity

No relevant information found. 

Component: Polymeric isocyanate

Teratogenicity

No relevant information found. 

Component: Polymeric isocyanate

Mutagenicity
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Not mutagenic in Ames Test. 

Component: Ethyl acetate

Subchronic toxicity In animals, effects have been reported on the following organs:

Liver

Respiratory tract.

Symptoms of excessive exposure may be anesthetic or narcotic 

effects; dizziness and drowsiness may be observed.

Component: Ethyl acetate

Carcinogenicity: For the hydrolysis product(s) Ethanol when not consumed in an alcoholic 

beverage is not classifiable as a human carcinogen. 

Component: Ethyl acetate

Reproductive toxicity

For the hydrolysis product(s) In animal studies, has been shown to interfere with fertility in males. 

Ingestion of large amounts of ethanol has been shown to interfere with fertility in human males. 

Component: Ethyl acetate

Teratogenicity

For the hydrolysis product(s) Has caused birth defects in lab animals at high doses. 

Component: Ethyl acetate

Mutagenicity

In vitro studies showed both positive and negative effects Animal testing did not show any 

mutagenic effects. 

12. ECOLOGICAL INFORMATION

Ecotoxicological information on this product or its components appear in this section when such data 

is available.

There is no data available for this product.

Polymeric isocyanate

Elimination information (persistence and degradability)

Biodegradability

0 %

10-day Window: Fail

Ecotoxicity effects

Toxicity to fish static test NOEC Danio rerio (zebra fish) 96 Hour OECD Test Guideline 

203 or Equivalent

> 100 mg/l

Toxicity to algae static test EC50 Algae 72 Hour 

> 1,000 mg/l

Toxicity to bacteria EC50 Bacteria (active sludge) 3 Hour Activated Sludge Respiratory 

Inhibition (OECD 209): >100 mg/l (non- inhibiting)

> 1,000 mg/l

Toxicity to aquatic 

invertebrates

Immobilization NOEC Daphnia magna 48 Hour OECD Test Guideline 

202 or Equivalent

> 100 mg/l
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Material is practically non-toxic to aquatic organisms on an acute basis (LC50/EC50/EL50/LL50 >100 

mg/L in the most sensitive species tested).

Ethyl acetate

Elimination information (persistence and degradability)

Biodegradability OECD Test Guideline 301A or Equivalent

100 %

Readily biodegradable

10-day Window: Pass

Ecotoxicity effects

Toxicity to fish LC50 Rainbow trout (Oncorhynchus mykiss) 96 Hour Method Not 

Specified

484 mg/l

Toxicity to fish LC50 Fathead minnow (Pimephales promelas) 96 Hour Method Not 

Specified

230 mg/l

Toxicity to algae EC50 Algae 96 Hour OECD Test Guideline 201

2,000 mg/l

Toxicity to algae static test NOEC Pseudokirchneriella subcapitata 96 Hour

2,000 mg/l

Toxicity to aquatic 

invertebrates

EC50 Daphnia magna 48 Hour Method Not Specified

717 mg/l

13. DISPOSAL CONSIDERATIONS

Environmental precautions: WARNING: KEEP SPILLS AND CLEANING RUNOFFS OUT OF 

MUNICIPAL SEWERS AND OPEN BODIES OF WATER.

Disposal

Waste Classification: 40 CFR 261.20 - .24 - Characteristic Waste D001, 100 lbs. 

When a decision is made to discard this material as supplied, it is classified as a RCRA hazardous 

waste with the characteristic of ignitability. 

For disposal, incinerate this material at a facility that complies with local, state, and federal regulations. 

(See 40 CFR 268) 

Contaminated packaging: Empty containers should be taken to an approved waste handling site for 

recycling or disposal. 

14. TRANSPORT INFORMATION

DOT

Proper shipping name Resin solution

UN number UN 1866

Class 3

Packing group II
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Reportable Quantity Ethyl acetate

Classification for SEA transport (IMO-IMDG):

Proper shipping name RESIN SOLUTION

UN number UN 1866

Class 3

Packing group II

Transportation classifications may vary by container volume and may be influenced by regional or 

country variations in regulations

15. REGULATORY INFORMATION

Workplace Classification

OSHA: This product is considered hazardous under the OSHA Hazard Communication 

Standard (29 CFR 1910.1200).

WHMIS: This product is a „controlled product‟ under the Canadian Workplace Hazardous 

Materials Information System (WHMIS).

SARA TITLE III: Section 311/312 Categorizations (40CFR370): Acute Health Hazard

Chronic Health Hazard

Fire Hazard

SARA TITLE III: Section 313 Information (40CFR372)

This product does not contain a chemical which is listed in Section 313 at or above de minimis 

concentrations.

CERCLA Information (40CFR302.4)

This material is regulated under the Comprehensive Environmental Response, Compensation and 

Liability Act (CERCLA)and the Superfund Amendments and Reauthorization Act (SARA) Title III 

Section 304. This material is or contains chemical(s) listed in 40 CFR Table 302.4 or nondesignated 

RCRA ICR substance(s). (Nondesignated ICR substances apply to materials that will not be reused.) 

The Reportable Quantity(s) (RQ) are listed below. Releases in excess of its reportable quantity must 

be reported to the National Response Center (1-800-424-8802) and to the appropriate state and local 

emergency response organizations.

Ethyl acetate 141-78-6 5000 lbs RQ

United States TSCA Inventory (US.TSCA): All components of this product are in compliance with the 

inventory listing requirements of the U.S. Toxic Substances Control Act (TSCA) Chemical Substance 

Inventory.

Pennsylvania

Any material listed as “Not Hazardous” in the CAS REG NO. column of SECTION 2, 

Composition/Information On Ingredients, of this MSDS is a trade secret under the provisions of the 

Pennsylvania Worker and Community Right-to-Know Act.
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16. OTHER INFORMATION

HMIS Hazard Rating

Health Fire Reactivity Physical 

Hazard PPE

*2 3 1

* = Chronic Effects (See Hazards Identification)

Legend

ACGIH American Conference of Governmental Industrial Hygienists

BAc Butyl acetate

OSHA Occupational Safety and Health Administration

PEL Permissible Exposure Limit

STEL Short Term Exposure Limit (STEL):

TLV Threshold Limit Value

TWA Time Weighted Average (TWA):

| Bar denotes a revision from prior MSDS.

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.

Version: 1.5

Print Date: 11/05/2012

Layout 101105013