Product Identification

Product Name

2,4-Diaminotoluene

Synonyms

[4,4'-Bi-3H-pyrazole]-3,3'-dione, 2,2',4,4'-tetrahydro-5,5'-dimethyl-2,2'-diphenyl-
2,4-Diaminotoluene
2,4-TDA
3,3'-Dimethyl-1,1'-diphenyl-4,4'-bi-5-pyrazolone
4-Methyl-m-phenylenediamine
Toluene-2,4-diamine

CAS

7477-67-0

CAS

95-80-7

Formula

C20H18N4O2

Formula

C7H10N2

Molecular Weight

122.17

Molecular Weight

346.39

EINECS

202-453-1

EINECS

231-282-5

RTECS

XS9625000

RTECS Class

Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Primary Irritant

Beilstein/Gmelin

2205839

Beilstein/Gmelin

572787

Beilstein Reference

4-13-00-00235

EC Index Number

612-099-00-3

EC Class

Carcinogenic Category 2; Toxic; Harmful; Irritant; Sensitising; Dangerous for the Environment

Physical and Chemical Properties

Appearance

Brown crystals. No reported odor.

Appearance

White to beige solid.

Solubility in water

Insoluble

Solubility in water

50 g/L (25 C)

Melting Point

99

Melting Point

300

Boiling Point

292

Vapor Pressure

1 (107 C)

Density

1.045 g/cm3 (20 C)

Partition Coefficient

.337

Usage

Photographic developer, industrial interrmediate.

Vapor Density

4.2

First Aid Measures

Ingestion

Causes gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.

Ingestion

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 immediately.

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid. 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.

Inhalation

Causes respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.

Skin

Causes skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. The toxicological properties of this material have not been fully investigated.

Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

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 immediately.

Eyes

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

Eyes

Causes eye irritation. The toxicological properties of this material have not been fully investigated.

Handling and Storage

Storage

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation.

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.

Hazards Identification

Inhalation

May cause effects similar to those described for ingestion. May cause asthma and shortness of breath.

Skin

Causes skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. If absorbed, may cause symptoms similar to those for ingestion. May cause a deep staining of the skin. May cause severe dermatitis and urticaria(hives).

Eyes

Causes eye irritation. May cause blepharitis (inflammation of the eyelids), keratoconjunctivitis and corneal opacity. May cause severe inflammation and edema of the eye and conjunctiva or deeper structures of the eye. May produce lacrimation and permanent blindness.

Ingestion

May cause irritation of the digestive tract. May cause methemoglobinemia, cyanosis, convulsions, and death. Methemoglobinemia is characterized by dizziness, drowsiness, headache, breath shortness, cyanosis with bluish skin, rapid heart rate and chocolate-brown colored blood. Ingestion may cause gastritis, vertigo, tremors, convulsions, and possible coma.

EC Risk Phrase

R 45 21 25 36 43 51/53

EC Safety Phrase

S 53 45 61

UN (DOT)

1709

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

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.

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

Chronic inhalation and ingestion may cause effects similar to those of acute inhalation and ingestion.

Exposure Effects

Prolonged or repeated skin contact may cause sensitization dermatitis and possible destruction and/or ulceration.

Exposure limit(s)

NIOSH REL: Ca (all isomers) See Appendix A NIOSH IDLH: Potential occupational carcinogen

Poison Class

1*

Fire Fighting Measures

Flash Point

169

Autoignition

520

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 agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use water spray to cool fire-exposed containers. For small fires, use dry chemical, carbon dioxide, or water spray. Cool containers with flooding quantities of water until well after fire is out. For large fires, use water spray, fog or regular foam.

Fire Potential

This chemical is combustible.

Accidental Release Measures

Small spills/leaks

Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code

3

Disposal Code

9

Incompatibilities

Acids, acid chlorides, acid anhydrides, chloroformates, strong oxidizing agents.

Stability

Stable at room temperature in closed containers under normal storage and handling conditions.

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.

Decomposition

Carbon monoxide, oxides of nitrogen, irritating and toxic fumes and gases, carbon dioxide.

Combustion Products

Highly toxic gases may be generated by thermal decomposition or combustion.

Transport Information

UN Number

1709

Hazard Class

6.1

Packing Group

III

HS Code

2921 51 19

HS Code

2933 19 90