Product Identification

Product Name

4-Methylaminophenol sulfate

Synonyms

4-(Methylamino)phenol sulfate (2:1) salt
Elon
Graphol
Metatyl
N-Methyl-4-hydroxyaniline hemisulfate
Rhodol

CAS

55-55-0

Formula

C14H20N2O6S

Molecular Weight

344.38

EINECS

200-237-1

RTECS

SL8650000

RTECS Class

Mutagen

Merck

12,6097

Beilstein/Gmelin

3919382

Beilstein Reference

3-13-00-01007

EC Index Number

650-031-00-4

EC Class

Harmful; Sensitising; Dangerous for the Environment

Physical and Chemical Properties

Appearance

Off-white crystalline solid.

Melting Point

86

Boiling Point

227

Density

1.434 g/cm3

Partition Coefficient

1.14

Usage

Photographic developer.

First Aid Measures

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.

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 immediately.

Handling and Storage

Storage

Do not store in direct sunlight. 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. Absorbs oxygen from the air and will darken upon exposure.

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. Do not ingest or inhale.

Hazards Identification

Ingestion

Harmful if swallowed. May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause blood abnormalities.

Inhalation

Causes respiratory tract irritation.

Skin

Causes skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.

Eyes

Causes eye irritation.

EC Risk Phrase

R 22 43 48/22 50/53

EC Safety Phrase

S 36/37 46 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

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.

Poison Class

3

Fire Fighting Measures

Autoignition

531

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Accidental Release Measures

Small spills/leaks

Wash area with soap and water. Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Incompatibilities

Acids; acid chlorides; acid anhydrides; oxidizing agents.

Stability

Stable under normal temperatures and pressures. May discolor on exposure to light.

Decomposition

Nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide.

Transport Information

UN Number

3077