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MSDS 
:
 1,2-Cyclohexanedicarboxylic anhydride, cis and trans mixture, 98%
CAS 
:
 85-42-7
SYNONYMS 
:
 Hexahydrophthalic anhydride.
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 85-42-7 |1,2-Cyclohexanedicarboxylic anhydride | 98 | 201-604-9 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: XN
Risk Phrases: 36/37/38 42/43

**** SECTION 3 - HAZARDS IDENTIFICATION ****

EMERGENCY OVERVIEW
Irritating to eyes, respiratory system and skin. May cause
sensitization by inhalation and skin contact.The toxicological
properties of this material have not been fully
investigated.Moisture sensitive.

Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. Chronic exposure may result in
sensitization.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and
diarrhea. The toxicological properties of this substance have not
been fully investigated. Expected to be a low ingestion hazard.
Inhalation:
May cause allergic respiratory reaction. The toxicological
properties of this substance have not been fully investigated. Causes
upper respiratory tract irritation. Causes irritation of the mucous
membrane.
Chronic:
No information found.

**** SECTION 4 - FIRST AID MEASURES ****

Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Immediately flush skin with plenty of water for at
least 15 minutes while removing contaminated clothing and shoes.
Wash clothing before reuse.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Never give anything by mouth to an unconscious person. Get medical
aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not
breathing, give artificial respiration. If breathing is difficult,
give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.

**** SECTION 5 - FIRE FIGHTING MEASURES ****

General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. During a fire, irritating and highly toxic gases
may be generated by thermal decomposition or combustion.
Extinguishing Media:
Use water spray to cool fire-exposed containers. Use extinguishing
media most appropriate for the surrounding fire. Do NOT get water
inside containers. Use water spray, dry chemical, carbon dioxide, or
appropriate foam.

**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal
container. Clean up spills immediately, observing precautions in the
Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation. Do not get water inside containers.

**** SECTION 7 - HANDLING and STORAGE ****

Handling:
Use only in a well-ventilated area. Minimize dust generation and
accumulation. Avoid breathing dust, vapor, mist, or gas. Avoid
contact with eyes, skin, and clothing. Keep container tightly
closed. Avoid ingestion and inhalation. Do not allow contact with
water. Wash clothing before reuse. Keep from contact with moist air
and steam.
Storage:
Keep container closed when not in use. Store in a tightly closed
container. Store in a cool, dry, well-ventilated area away from
incompatible substances. Store protected from moisture.

**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****

Engineering Controls:
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower. Use adequate
ventilation to keep airborne concentrations low.
Exposure Limits
CAS# 85-42-7:


Personal Protective Equipment

Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
A respiratory protection program that meets OSHA's 29
CFR 1910.134 and ANSI Z88.2 requirements or European
Standard EN 149 must be followed whenever workplace
conditions warrant respirator use.

**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****

Physical State: Solid
Color: Not available.
Odor: Aromatic
pH: Not available.
Vapor Pressure: < 1.1 mm Hg @ 1
Viscosity: mPas 40 deg C
Boiling Point: 296 deg C @ 760.00mm Hg
Freezing/Melting Point: 37.5 deg C
Autoignition Temperature: 395 deg C ( 743.00 deg F)
Flash Point: 143 deg C ( 289.40 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: may decompose
Specific Gravity/Density:
Molecular Formula: C8H10O3
Molecular Weight: 154.17

**** SECTION 10 - STABILITY AND REACTIVITY ****

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, dust generation, excess heat, exposure to
moist air or water, temperatures above 300C.
Incompatibilities with Other Materials:
Strong oxidizing agents, strong bases, strong acids, moisture.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon
dioxide.
Hazardous Polymerization: May occur.

**** SECTION 11 - TOXICOLOGICAL INFORMATION ****

RTECS#:
CAS# 85-42-7 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
1,2-Cyclohexanedicarboxylic anhydride -
Not listed by ACGIH, IARC, or NTP.

**** SECTION 12 - ECOLOGICAL INFORMATION ****



**** SECTION 13 - DISPOSAL CONSIDERATIONS ****

Dispose of in a manner consistent with federal, state, and local regulations.

**** SECTION 14 - TRANSPORT INFORMATION ****

IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

**** SECTION 15 - REGULATORY INFORMATION ****

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN
Risk Phrases:
R 36/37/38 Irritating to eyes, respiratory system
and skin.
R 42/43 May cause sensitization by inhalation and
skin contact.
Safety Phrases:
S 23 Do not inhale gas/fumes/vapour/spray.
S 39 Wear eye/face protection.
WGK (Water Danger/Protection)
CAS# 85-42-7: 1
Canada
CAS# 85-42-7 is listed on Canada's DSL List.
CAS# 85-42-7 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 85-42-7 is listed on the TSCA inventory.

**** SECTION 16 - ADDITIONAL INFORMATION ****

MSDS Creation Date: 3/18/1999 Revision #3 Date: 1/25/2005

The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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