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| | Hydroxylamine-O-sulfonic acid Basic information |
| | Hydroxylamine-O-sulfonic acid Chemical 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) | | pka | -6.47±0.18(Predicted) | | form | Crystalline Powder | | color | White | | PH | 0.8 (100g/l, H2O, 20℃) | | 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) |
| | Hydroxylamine-O-sulfonic acid Usage And Synthesis |
| Chemical Properties | white to slightly beige crystalline powder | | 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. | | Uses | Hydroxylamine-O-sulfonic acid (HOSA) may be used to synthesize (Z)-1H-purin-6(7H)-ylideneaminooxysulfonic acid.
HOSA may be used as an aminating reagent in the synthesis of:
- 1-aminotetrazoles and 2-aminotetrazoles
- N-aminopiperidine (NAPP)
- 1H,1′ H-2,2′-biimidazole-1,1′-diamine
| | General Description | Hydroxylamine-O-sulfonic acid is a versatile synthetic reagent. It is widely employed as a nucleophile and as an electrophile in various organic syntheses. It can be synthesized by reacting hydroxylamine sulfate with 30% fuming H2SO4. | | Purification Methods | Stir the solid vigorously with anhydrous Et2O and filter it off using large volumes of dry Et2O. Drain dry at the pump for 5minutes and then for 12-14hours in a vacuum. Store it in a vacuum desiccator over conc H2SO4. Determine the purity by oxidation of iodide to I2. It must be stored in a dry atmosphere at 0-4o. It decomposes slowly in H2O at 25o and more rapidly above this temperature. [Matsuguma & Andrieth Inorg Synth V 122 1957.] |
| | Hydroxylamine-O-sulfonic acid Preparation Products And Raw materials |
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