Product Identification

Product Name

Phenylbenzene

Synonyms

Bibenzene
Biphenyl
Carolid AL
Dibenzene
Phenyl benzene
Tetrosin LY

CAS

92-52-4

Formula

C12H10

Molecular Weight

154.21

EINECS

202-163-5

RTECS

DU8050000

RTECS Class

Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Human Data; Primary Irritant

Merck

13,3346

Beilstein/Gmelin

1634058

Beilstein Reference

4-05-00-01807

EC Index Number

601-042-00-8

EC Class

Irritant; Dangerous for the Environment

Physical and Chemical Properties

Appearance

Crude diphenyl is a colorless liquid, pure material is a white crystalline solid, distinctive aromatic odor.

Solubility in water

Insoluble

Melting Point

68 - 70

Boiling Point

255

Vapor Pressure

0.05 (25 C)

Density

1.175 g/cm3 (20 C)

Partition Coefficient

4.01

Heat Of Vaporization

48.0 kJ/mol

Heat Of Combustion

-6258 kJ/mol

Usage

Fungicide.

Saturation Concentration

Less than 13 ppm at 25 C

Vapor Density

5.31

Odor threshold

0.0062 mg/m3

Refractive Index

1.588 (20 C)

First Aid Measures

Ingestion

Do NOT induce vomiting. 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.

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. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

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.

Handling

Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. 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.

Hazards Identification

Inhalation

Dust is irritating to the respiratory tract. Causes irritation of the mucous membrane and upper respiratory tract. Inhalation may cause headache, numbness of the limbs, flaccid paralysis, nausea, or vomiting.

Skin

Causes severe skin irritation. May be absorbed through the skin.

Eyes

Causes eye irritation.

Ingestion

Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May cause gastric disturbances and electrolytic imbalance. May cause systemic toxic effects on the heart, liver, and kidneys. May cause central nervous system depression.

Hazards

Emits toxic fumes under fire conditions.

EC Risk Phrase

R 36/37/38 50/53

EC Safety Phrase

S 23 60 61

UN (DOT)

3077

Exposure Controls/Personal Protection

Personal Protection

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 a respirator's use.

Exposure Effects

Prolonged or repeated skin contact may cause sensitization dermatitis and possible destruction and/or ulceration. May cause liver and kidney damage. May cause digestive tract and cardiac disturbances. Repeated exposure may cause central nervous system damage. Laboratory experiments have resulted in mutagenic effects. Prolonged exposure to vapor concentrations above 0.005 mg/L is conside red dangerous.

Exposure limit(s)

TLV: 0.2 ppm; 1.3 mg/m3 (ACGIH 1993-1994). OSHA PEL: TWA 1 mg/m3 (0.2 ppm) NIOSH REL: TWA 1 mg/m3 (0.2 ppm) NIOSH IDLH: 100 mg/m3

Poison Class

4

Fire Fighting Measures

Flash Point

113

Autoignition

570

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Water runoff can cause environmental damage. Dike and collect water used to fight fire. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. Extinguishing media: Water spray may cause frothing. In case of fire, use carbon dioxide, dry chemical, or water fog. Solid streams of water may spread fire.

Upper exp. limit

3.4

Lower exp. limit

.7

Fire Potential

This material is combustible.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container. Reduce airborne dust and prevent scattering by moistening with water. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code

3

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

3077

Hazard Class

9

Packing Group

III

HS Code

2902 90 30