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MSDS 
:
 4-Isocyanaobenzoyl Chloride, 98%
CAS 
:
 3729-21-3
SYNONYMS 
:
 None.
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 3729-21-3 |4-Isocyanaobenzoyl Chloride | 98% | unlisted |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: C
Risk Phrases: 20/21/22 34

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

EMERGENCY OVERVIEW
Harmful by inhalation, in contact with skin and if swallowed. Causes
burns.Moisture sensitive.Corrosive.Lachrymator (substance which
increases the flow of tears).The toxicological properties of this
material have not been fully investigated.

Potential Health Effects
Eye:
Causes eye burns. Lachrymator (substance which increases the flow
of tears). May cause chemical conjunctivitis and corneal damage.
Skin:
Causes skin burns. Organic isocyanates can cause local irritation
and allergic reactions. May cause skin rash (in milder cases), and
cold and clammy skin with cyanosis or pale color.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes
gastrointestinal tract burns. May cause perforation of the digestive
tract. The toxicological properties of this substance have not been
fully investigated. May cause systemic effects.
Inhalation:
Causes chemical burns to the respiratory tract. The toxicological
properties of this substance have not been fully investigated.
Inhalation may be fatal as a result of spasm, inflammation, edema of
the larynx and bronchi, chemical pneumonitis and pulmonary edema.
Aspiration may lead to pulmonary edema. 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. May
cause systemic effects.
Chronic:
Effects may be delayed. 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:
Get medical aid. Do NOT allow victim to rub eyes or keep eyes
closed. Extensive irrigation with water is required (at least 30
minutes).
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. Destroy contaminated shoes.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4
cupfuls of milk or water. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh
air immediately. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen. Do NOT use mouth-to-mouth
resuscitation. If breathing has ceased apply artificial respiration
using oxygen and a suitable mechanical device such as a bag and a
mask.
Notes to Physician:

**** 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 foam, dry chemical, or carbon dioxide. Use agent most
appropriate to extinguish fire. DO NOT USE WATER! 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:
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:
Wash thoroughly after handling. Use with adequate ventilation.
Minimize dust generation and accumulation. Avoid contact with eyes,
skin, and clothing. Keep container tightly closed. Avoid ingestion
and inhalation. Do not allow contact with water. Discard
contaminated shoes. Keep from contact with moist air and steam.
Storage:
Store in a tightly closed container. Store in a cool, dry,
well-ventilated area away from incompatible substances. Corrosives
area. 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# 3729-21-3:


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 minimize
contact with skin.
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: white crystalline solid
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 54-55 deg C @ .07mmHg
Freezing/Melting Point: 36 - 38 deg C
Autoignition Temperature: Not applicable.
Flash Point: > 110 deg C (> 230.00 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density: 1.3170g/cm3
Molecular Formula: OCNC6H4COCl
Molecular Weight: 181.58

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

Chemical Stability:
Stable at room temperature in closed containers under normal storage
and handling conditions.
Conditions to Avoid:
Incompatible materials, dust generation, moisture, excess heat,
exposure to moist air or water.
Incompatibilities with Other Materials:
Moisture, alcohols, strong bases, strong oxidizing agents.
Hazardous Decomposition Products:
Hydrogen chloride, nitrogen oxides, carbon monoxide, irritating and
toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: Has not been reported

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

RTECS#:
CAS# 3729-21-3 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
4-Isocyanaobenzoyl Chloride -
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: CORROSIVE SOLID, N.O.S.*
Hazard Class: 8
UN Number: 1759
Packing Group: II
IMO
Shipping Name: CORROSIVE SOLID, N.O.S.
Hazard Class: 8
UN Number: 1759
Packing Group: II
RID/ADR
Shipping Name: CORROSIVE SOLID, N.O.S.
Hazard Class: 8
UN Number: 1759
Packing group: II

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

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 20/21/22 Harmful by inhalation, in contact with
skin and if swallowed.
R 34 Causes burns.
Safety Phrases:
S 25 Avoid contact with eyes.
S 28A After contact with skin, wash immediately with
plenty of water.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
S 37 Wear suitable gloves.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 3729-21-3: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 3729-21-3 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 3729-21-3 is not listed on the TSCA inventory.
It is for research and development use only.

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

MSDS Creation Date: 6/15/1999 Revision #2 Date: 3/18/2003

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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2-Chloro-6-Methylphenyl Isocyanate, 97% 40398-01-4
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Pentyl Isocyanate, 98% 3954-13-0
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Ethylphosphonic dichloride, 98% 1066-50-8
Butylphosphonic Dichloride, 98% 2302-80-9
Octyl chloroformate, 97% 7452-59-7
P-Tolyl Chloroformate, 97% 937-62-2
4-Methoxyphenyl Chloroformate, 98% 7693-41-6

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