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Benzenesulfonic acid CAS 98-11-3 | 800468 - Merck Millipore

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800468 Benzenesulfonic acid Benzenesulfonic acid for synthesis. CAS No. 98-11-3, EC Number 202-638-7.

Chemical Formula:C₆H₅SO₃HEC Number:202-638-7Hill Formula:C₆H₆O₃SCAS #:98-11-3Molar Mass:158.18g/mol

Description
Catalogue Number	800468
Synonyms	Phenylsulfonic acid

Applications
Application	Benzenesulfonic acid for synthesis. CAS No. 98-11-3, EC Number 202-638-7.

Physicochemical Information
Boiling point	171 °C (0.13 hPa)
Density	1.32 g/cm3 (47 °C)
Flash point	>100 °C
Melting Point	43 °C
pH value	2 (H₂O, 20 °C) (saturated solution)
Solubility	930 g/l

Toxicological Information
LD 50 oral	LD50 Rat 1175 mg/kg

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H302: Harmful if swallowed. H314: Causes severe skin burns and eye damage.
Precautionary Statement(s)	P280: Wear protective gloves/ protective clothing/ eye protection/ face protection. P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
Signal Word	Danger
RTECS	DB4200000
Storage class	8A Combustible, corrosive hazardous materials
WGK	WGK 1 slightly hazardous to water
Disposal	3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

Safety Information
Hazard Symbols	Corrosive
Categories of danger	harmful, corrosive
R Phrase	R 22-34 Harmful if swallowed.Causes burns.
S Phrase	S 26-36/37/39-45 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).

Storage and Shipping Information
Storage	Store below +30°C.

Transport Information
Declaration (railroad and road) ADR, RID	UN 2585 , 8, III
Declaration (transport by air) IATA-DGR	UN 2585 , 8, III
Declaration (transport by sea) IMDG-Code	UN 2585 , 8, III, Segregation Group: 1 (Acids)

Specifications
Assay (acidimetric)	≥ 97.0 %
Water (K. F.)	≤ 3.0 %
Sulfuric acid	≤ 0.7 %
Identity (IR)	passes test
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.