Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity
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Aniline-2,5-disulfonic acid(98-44-2)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity

Product Identification

Product Name
Aniline-2,5-disulfonic acid
Synonyms
2,5-Disulfo-1-aminobenzene
2,5-Disulfoaniline
2-Amino-p-benzenedisulfonic acid
6-Aminobenzene-1,4-disulfonic acid
Aniline-2,5-disulfonic acid
p-Benzenedisulfonic acid, 2-amino-
CAS
98-44-2
Formula
C6H7NO6S2
Molecular Weight
253.24
EINECS
202-669-6
RTECS
CZ9250000
RTECS Class
Primary Irritant
Beilstein/Gmelin
2660550
Beilstein Reference
3-14-00-02260

Physical and Chemical Properties

Appearance
Solid.
Solubility in water
Very soluble
Boiling Point
500
pKa/pKb
12.24 (pKb)

First Aid Measures

Ingestion
Get medical aid. Wash mouth out with water.
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.

Handling and Storage

Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.

Hazards Identification

Ingestion
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation
Causes respiratory tract irritation. May be harmful if inhaled.
Skin
Causes skin irritation. May be harmful if absorbed through the skin.
Eyes
Causes eye irritation.

Exposure Controls/Personal Protection

Personal Protection
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.

Fire Fighting Measures

Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use foam, dry chemical, or carbon dioxide.

Accidental Release Measures

Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container.

Stability and Reactivity

Stability
No data.
Incompatibilities
Strong oxidizing agents, acids, acetic anhydride, acid chlorides, carbon dioxide.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide, sulfur oxides (SOx), including sulfur oxide and sulfur dioxide.
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