Hydroxylamine-O-sulfonic acid , 97% , 2950-43-8

Synonym(s):
Hos;tbx5;tbx5.1;tbx5a;zTbx5

CAS NO.：2950-43-8

Empirical Formula: H3NO4S

Molecular Weight: 113.09

MDL number: MFCD00011604

EINECS: 220-971-6

PRODUCT Properties

• Melting point: 210 °C (dec.)(lit.)
• Boiling point: 39 °C(Press: 0.4 Torr)
• Density: 2.2 g/cm3 (20℃)
• vapor pressure: 0-53.329Pa at 25-39℃
• storage temp.: 2-8°C
• solubility: 675g/l (slow decomposition)
• form: Crystalline Powder
• pka: -6.47±0.18(Predicted)
• color: White
• PH: 0.8 (100g/l, H2O, 20℃)
• biological source: rabbit
• Water Solubility: soluble
• Sensitive: Hygroscopic
• BRN: 956566
• InChIKey: DQPBABKTKYNPMH-UHFFFAOYSA-N
• CAS DataBase Reference: 2950-43-8(CAS DataBase Reference)
• EPA Substance Registry System: Hydroxylamine-O-sulfonic acid (2950-43-8)

Description and Uses

Hydroxylamine-O-sulfonic acid is used in the synthesis of quinolones for the benzodiazepine site of GABAA receptors. It is also used as a polymerization catalyst and an amination reagent. It is involved in the preparation of diazene by reacting with an alkali. It is also used in the inhibition of polychlorinated dibenzo-p-dioxins (PCDD) as well as (polychlorinated biphenyl) PCB formation in co-combustion.

Safety

• Symbol(GHS): GHS05,GHS07,GHS09
• Signal word: Danger
• Hazard statements: H302-H314-H410
• Precautionary statements: P260-P280-P301+P312+P330-P303+P361+P353-P304+P340+P310-P305+P351+P338
• Hazard Codes: C,N
• Risk Statements: 34-50-43-40-22
• Safety Statements: 26-36/37/39-45-61-28A-27-22
• RIDADR: UN 3260 8/PG 3
• WGK Germany: 3
• RTECS: NC5427000
• F: 10-21
• Hazard Note: Irritant
• TSCA: Y
• HazardClass: 8
• PackingGroup: III
• HS Code: 28111980
• Limited Quantities: 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
• Excepted Quantities: Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)