Product Identification
【Product Name】2-Chloroaniline-5-sulfonic acid 3-氨基-4-氯苯磺酸
【Synonyms】3-Amino-4-chlorobenzenesulfonic acid
【CAS】98-36-2
【Formula】C6H6ClNO3S
【Molecular Weight】207.64
【EINECS】202-661-2
【Beilstein/Gmelin】2693041
【Beilstein Reference】2-14-00-00435

Physical and Chemical Properties
【Appearance】Pinkish fine crystalline powder solid.
【Solubility in water】Very soluble
【Melting Point】300℃
【Boiling Point】500℃
【pKa/pKb】12.03 (pKb)
【Partition Coefficient】.18
【Heat Of Vaporization】
 
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. The toxicological properties of this substance have not been fully investigated.
【Inhalation】Causes respiratory tract irritation.
【Skin】Causes skin irritation.
【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 extinguishing media most appropriate for the surrounding fire.

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】Stark oxidierende Mittel.
【Decomposition】Hydrogen chloride, carbon monoxide, oxides of nitrogen, oxides of sulfur, carbon dioxide.