Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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1,5-Naphthalene diisocyanate(3173-72-6)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
1,5-Naphthalene diisocyanate
Synonyms
1,5-Naphthyl diisocyanate
1,5-Naphthylene diisocyanate
Isocyanic acid, 1,5-naphthylene ester
Naphthalene diisocyanate
Naphthalene, 1,5-diisocyanate
CAS
3173-72-6
Formula
C12H6N2O2
Molecular Weight
210.2
EINECS
221-641-4
RTECS
NQ9600000
RTECS Class
Tumorigen
Beilstein/Gmelin
2212353
Beilstein Reference
4-13-00-00342
EC Index Number
615-007-00-X
EC Class
Harmful; Irritant; Sensitising; Dangerous for the Environment

Physical and Chemical Properties

Appearance
White to light-yellow crystalline flakes.
Solubility in water
Insoluble
Melting Point
130 - 131
Boiling Point
220 - 221 (40 torr)
Vapor Pressure
.003
Density
1.462 g/cm3
Vapor Density
7.3

First Aid Measures

Ingestion
Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
Inhalation
If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
Skin
Remove contaminated clothing. Wash exposed area with soap and water. If symptoms persist, seek medical attention. Launder clothing before reuse.
Eyes
If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.

Handling and Storage

Storage
Store in a tightly closed container to prevent moisture contamination.
Handling
Do not reseal if contamination is suspected. Avoid contact with skin and eyes. Do not breath aerosols/vapors.

Hazards Identification

Ingestion
See inhalation.
Inhalation
Symptoms: irritation eyes, nose, throat; respiratory sensitization, cough, pulmonary secretions, chest pain, dyspnea (breathing difficulty); asthma Target Organs: Eyes, respiratory system.
Skin
See inhalation.
Eyes
See inhalation.
UN (DOT)
2206

Exposure Controls/Personal Protection

Personal Protection
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
Respirators
A supplied=air respirator or a SCBA.
Exposure limit(s)
NIOSH REL: TWA 0.040 mg/m3 (0.005 ppm) C 0.170 mg/m3 (0.020 ppm) 10-minute
Poison Class
2

Fire Fighting Measures

Flash Point
155
Fire Fighting
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. Use agent most appropriate to extinguish fire.

Accidental Release Measures

Small spills/leaks
If material is molten, allow to solidify. Shovel into open containers. Flakes can be swept and placed into an open container..

Stability and Reactivity

Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Oxides of carbon and nitrogen. Traces of HCN.

Transport Information

UN Number
2206
Hazard Class
6.1
Packing Group
II; III
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