(-{2}-H8)Styrene

  • Benzene-d5-, ethenyl-d3-
Formula
[2H]8C8
Structure
Description
Colorless liquid. Characteristic - penetrating - pungent odo odor.

Registry Numbers and Inventories.
CAS
19361-62-7
EC (EINECS/ELINCS)
242-995-6
EC Class
flammable, harmful, irritant
R 10 20 36/38
UN (DOT)
2055
Beilstein/Gmelin
NA
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed

Properties.
Formula
C8D8
Formula mass
112.20
Melting point, °C
-31
Boiling point, °C
145
Vapor pressure, mmHg
6 (25 C)
Saturation Concentration
25.6 g/m3 (20 C)
Density
0.97 g/cm3
Solubility in water
0.24 g/L (20 C)
Partition coefficient, pKow
2.70
Heat of vaporization
36.7 kJ/mol

Hazards and Protection.
Storage
Keep away from sources of ignition. Do not store in direct sunlight. Store in a tightly closed container. Store in a dry area. Refrigerator/flammables. Store under an inert atmosphere.
Handling
Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Use only in a chemical fume hood.
Protection
Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Remove all sources of ignition. Use a spark-proof tool.
Disposal code
3
Stability
Prolonged exposure to air and sunlight may form unstable peroxides.
Incompatibilities
Oxidizing materials, sulfuric acid, chlorosulfonic acid, oleum, dibenzoyl peroxide.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
31
Autoignition, °C
480
Upper exp. limit, %
8.9
Lower exp. limit, %
1.1
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Water may be ineffective. Material is lighter than water and a fire may be spread by the use of water. Forms peroxides of unknown stability. Extinguishing media: Use water spray to cool fire-exposed containers. Use foam, dry chemical, or carbon dioxide. Water may be ineffective.
Fire potential
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
May cause liver and kidney damage. Prolonged exposure may produce a narcotic effect. Prolonged or repeated exposure may cause nausea, dizziness, and headache. Repeated exposure may cause central nervous system damage.
   Ingestion
May cause central nervous system depression, kidney damage, and liver damage. May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
Harmful if inhaled. Causes respiratory tract irritation. May cause irritation of the respiratory tract with burning pain in the nose and throat, coughing, wheezing, shortness of breath and pulmonary edema. May cause narcotic effects in high concentration.
   Skin
Causes moderate skin irritation. May cause dermatitis. Causes redness and pain.
   Eyes
Causes severe eye irritation. Contact produces irritation, tearing, and burning pain. May cause conjunctivitis. Lachrymator. Causes redness and pain.

First aid
 
   Ingestion
Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
2055
Response guide
Hazard class
3
Packing Group
III
 
HS Code
2845 90 10