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BES(10191-18-1)

BES(10191-18-1)
Product IdentificationBack to Contents
【Product Name】

BES
【Synonyms】

2-(Bis(2-hydroxyethyl)amino)ethanesulfonic acid
Ethanesulfonic acid, 2-(bis(2-hydroxyethyl)amino)
Taurine, N,N-bis(2-hydroxyethyl)-
【CAS】

10191-18-1
【Formula】

C6H15NO5S
【Molecular Weight】

213.25
【EINECS】

233-465-5
【RTECS】

KI7363500
【RTECS Class】

Other
【Beilstein/Gmelin】

1781572
【Beilstein Reference】

4-04-00-03290
Physical and Chemical PropertiesBack to Contents
【Appearance】

White solid.
【Melting Point】

152 - 156
【Boiling Point】

405
【pKa/pKb】

7.1(at 25℃) 7.15(at 20℃) (pKa)
【Partition Coefficient】

-1.85
【Usage】

Buffering agent.
First Aid MeasuresBack to Contents
【Ingestion】

Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. 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 if cough or other symptoms appear.
【Skin】

Get medical aid. Wash clothing before reuse. Rinse area with large amounts of water for at least 15 minutes.
【Eyes】

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Handling and StorageBack to Contents
【Storage】

Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances.
【Handling】

Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Hazards IdentificationBack to Contents
【Ingestion】

May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
【Inhalation】

May cause allergic respiratory reaction. The toxicological properties of this substance have not been fully investigated.
【Skin】

May cause skin irritation.
【Eyes】

May cause eye irritation.
【EC Safety Phrase】

S 22 24/25
Exposure Controls/Personal ProtectionBack to Contents
【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.
Fire Fighting MeasuresBack to Contents
【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. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.
Accidental Release MeasuresBack to Contents
【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 ReactivityBack to Contents
【Disposal Code】

4
【Stability】

Stable under normal temperatures and pressures.
【Incompatibilities】

Strong oxidizing agents
【Decomposition】

Nitrogen oxides, carbon monoxide, carbon dioxide, sulfur oxides (SOx), including sulfur oxide and sulfur dioxide.
Transport InformationBack to Contents
【HS Code】

2922 19 80
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