Product Identification

Product Name

C.I. 42780

Synonyms

Acid blue 93
Aniline blue water soluble
Benzenesulfonic acid, [[4-[bis[4-[(sulfophenyl)amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene]amino]-, disodium salt
Cotton blue
Poirriers blue
Water blue

CAS

28983-56-4

Formula

C37H27N3Na2O9S3

Molecular Weight

799.81

EINECS

249-352-9

RTECS

DB5044700

RTECS Class

Mutagen

Merck

13,6055

Physical and Chemical Properties

Appearance

deep brown fine crystals

Usage

Used as a a coloring.

First Aid Measures

Ingestion

If swallowed, wash out mouth with water provided person is conscious. Call a physician.

Inhalation

If inhaled, remove to fresh air. If breathing becomes difficult, call a physician.

Skin

In case of contact, immediately wash skin with soap and copious amounts of water.

Eyes

In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Handling and Storage

Storage

Keep tightly closed.

Hazards Identification

Inhalation

May be harmful if inhaled. Material may be irritating to mucous membranes and upper respiratory tract.

Skin

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

Eyes

May cause eye irritation.

Ingestion

May be harmful if swallowed.

Hazards

Emits toxic fumes under fire conditions.

EC Safety Phrase

22 24/25

Exposure Controls/Personal Protection

Personal Protection

Protective gloves. Chemical safety goggles.

Respirators

Wear dust mask.

Exposure Effects

Avoid contact and inhalation.

Fire Fighting Measures

Fire Fighting

Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.

Accidental Release Measures

Small spills/leaks

Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.

Stability and Reactivity

Stability

Stable at normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Carbon monoxide, Carbon dioxide.