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MSDS 
:
 3-Bromophenyl isocyanate, 97%
CAS 
:
 23138-55-8
SYNONYMS 
:
 m-Bromophenyl isocyanate.
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 23138-55-8 |3-Bromophenyl isocyanate | 97 | unlisted |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: XN
Risk Phrases: 20/21/22 36/37/38 42

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

EMERGENCY OVERVIEW
Harmful by inhalation, in contact with skin and if swallowed.
Irritating to eyes, respiratory system and skin. May cause
sensitization by inhalation.Moisture sensitive.

Potential Health Effects
Eye:
Causes eye irritation. Lachrymator (substance which increases the
flow of tears). May cause severe eye irritation and possible
injury.
Skin:
Causes skin irritation. May cause skin sensitization, an allergic
reaction, which becomes evident upon re-exposure to this material.
May be harmful if absorbed through the skin. Organic isocyanates can
cause local irritation and allergic reactions. Isocyanates, in
general, can cause skin discoloration (staining) and hardening of the
skin after repeated exposures.
Ingestion:
Harmful if swallowed. Causes gastrointestinal irritation with
nausea, vomiting and diarrhea.
Inhalation:
Causes respiratory tract irritation. At high concentrations,
isocyanates affect mucous membranes of the respiratory tract and may
lead to fatal pulmonary edema. Exposure to low and often even
unmeasurable isocyanate concentration results in sensitization.
Impaired lung functions (decreased ventilatory capacity) has been
associated with overexposure to isocyanate.
Chronic:
Chronic overexposure to isocyanates has been reported to cause lung
damage, including decreased lung fuction, which may be permanent.

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

Eyes:
In case of contact, immediately flush eyes with plenty of water for
at least 15 minutes. Get medical aid immediately.
Skin:
In case of contact, immediately flush skin with soap and plenty of
water. Remove contaminated clothing and shoes. Get medical aid if
symptoms occur. Wash clothing before reuse.
Ingestion:
If swallowed, do not induce vomiting unless directed to do so by
medical personnel. Never give anything by mouth to an unconscious
person. Get medical aid.
Inhalation:
If inhaled, remove to fresh air. 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. Use water spray to keep fire-exposed containers
cool. Fire or excessive heat may result in violent rupture of the
container due to bulk polymerization. Approach fire from upwind to
avoid hazardous vapors and toxic decomposition products. Vapors are
heavier than air and may travel to a source of ignition and flash
back. Vapors can spread along the ground and collect in low or
confined areas.
Extinguishing Media:
Use carbon dioxide or dry chemical. Do NOT get water inside
containers.

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

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container. Clean up spills immediately,
observing precautions in the Protective Equipment section. Provide
ventilation. Do not get water inside containers. Evacuate
unnecessary personnel. Approach spill from upwind.

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

Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Avoid contact with eyes, skin, and clothing. Keep
container tightly closed. Do not allow contact with water. Inform
laundry personnel of contaminant's hazards. Isocyanates react with
water to form CO2 gas. This gas can cause sealed containers to expand
and possibly rupture. Use only with adequate ventilation or
respiratory protection.
Storage:
Keep refrigerated. (Store below 4C/39F.) Storage under a nitrogen
blanket has been recommended. Store in tightly closed containers to
prevent moisture contamination. Do not reseal if contamination is
suspected.

**** 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 process enclosure,
local exhaust ventilation, or other engineering controls to control
airborne levels.
Exposure Limits
CAS# 23138-55-8:


Personal Protective Equipment

Eyes:
Wear chemical splash goggles.
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: Liquid
Color: clear colorless to slightly yellow
Odor: irritating odor
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 220 deg C
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: 108 deg C ( 226.40 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: Hydrolysis.
Specific Gravity/Density: 1.586 g/cm3
Molecular Formula: C7H4BrNO
Molecular Weight: 198.03

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

Chemical Stability:
Stable at room temperature in closed containers under normal storage
and handling conditions. May polymerize.
Conditions to Avoid:
Excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents, water, strong bases, acids, alcohols,
amines, organotin catalysts.
Hazardous Decomposition Products:
Carbon monoxide, oxides of nitrogen, irritating and toxic fumes and
gases, carbon dioxide, hydrogen bromide.
Hazardous Polymerization: May occur.

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

RTECS#:
CAS# 23138-55-8 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
3-Bromophenyl isocyanate -
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
Shipping Name: ISOCYANATES, TOXIC, N.O.S.*
Hazard Class: 6.1
UN Number: 2206
Packing Group: II
IMO
Shipping Name: ISOCYANATES, TOXIC, N.O.S.
Hazard Class: 6.1
UN Number: 2206
Packing Group: II
RID/ADR
Shipping Name: ISOCYANATES, TOXIC, N.O.S.
Hazard Class: 6.1
UN Number: 2206
Packing group: II

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

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN
Risk Phrases:
R 20/21/22 Harmful by inhalation, in contact with
skin and if swallowed.
R 36/37/38 Irritating to eyes, respiratory system
and skin.
R 42 May cause sensitization by inhalation.
Safety Phrases:
S 23 Do not inhale gas/fumes/vapour/spray.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
WGK (Water Danger/Protection)
CAS# 23138-55-8: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 23138-55-8 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 23138-55-8 is not listed on the TSCA inventory.
It is for research and development use only.

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

MSDS Creation Date: 3/08/1999 Revision #3 Date: 12/08/2003

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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