Product Identification

Product Name

1,3-Diphenylguanidine

Synonyms

1,2-Di(phenyl)guanidine
Denax
Melaniline
N,N'-Diphenylguanidine
sym-Diphenylguanidine
Vulkazit

CAS

102-06-7

Formula

C13H13N3

Molecular Weight

211.29

EINECS

203-002-1

RTECS

MF0875000

RTECS Class

Tumorigen; Mutagen; Reproductive Effector

Merck

13,3356

Beilstein/Gmelin

1875653

Beilstein Reference

4-12-00-00769

EC Index Number

612-149-00-4

EC Class

Toxic for reproduction Category 3; Harmful; Irritant; Dangerous for the Environment

Physical and Chemical Properties

Appearance

White to cream-colored chalky powder. Bitter taste and slight odor.

Solubility in water

Soluble

Melting Point

146 - 147

Boiling Point

321

Vapor Pressure

0.0003 (25 C)

Density

1.19 g/cm3 (20 C)

pKa/pKb

3.58 (pKb)

Partition Coefficient

2.36

Heat Of Vaporization

56.3 kJ/mol

Usage

Primary material for standardizing acids, free base & phthalate as accelerators for vulcanization of rubber.

Vapor Density

1.115

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 breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.

Skin

Get medical aid. 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. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Wash clothing before reuse.

Hazards Identification

Inhalation

May cause respiratory tract irritation.

Skin

May cause skin irritation. May be absorbed through the skin.

Eyes

Causes eye irritation.

Ingestion

Harmful if swallowed. May cause irritation of the digestive tract.

EC Risk Phrase

R 22 36/37/38 51/53 62

EC Safety Phrase

S 26 36/37/39 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

Reproductive effects have been reported in animals. Laboratory experiments have resulted in mutagenic effects. Repeated or prolonged exposure may cause allergic reactions in sensitive individuals.

Poison Class

3

Fire Fighting Measures

Flash Point

148

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. Extinguishing media: Use extinguishing media most appropriate for the surrounding fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Potential

This chemical is combustible.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.

Transport Information

UN Number

3077

HS Code

2925 20 00