Hydroxylamine sulfate
CAS 10039-54-0
EC 233-118-8
Formula H3NO.1/2H2O4S
MW 131.11 g/mol
Salts & Minerals Pharmaceuticals & HealthcareWater TreatmentTextile, Leather & PaperAgriculture & FeedPersonal Care & Cosmetics Preservation & BiocideCatalysisHumectant & Moisturizing
Description
Hydroxylamine sulfate (CAS 10039-54-0, EC 233-118-8) is an inorganic salt supplied as the hydroxylammonium form, also referenced as hydroxylamine sulphate or hydroxy ammonium sulfate. It carries no assigned E-code and is not classified as a food additive. The molecular formula is H3NO·½H2SO4.
In pharmaceutical synthesis, it acts as a reducing agent and intermediate in oxime formation, converting ketones and aldehydes into stable oximes under controlled conditions. In water treatment, it functions as an oxygen scavenger, reacting directly with dissolved oxygen to prevent corrosion in boiler and cooling systems. Personal care formulators apply it as a pH-dependent skin conditioner and humectant.
Hydroxylamine sulfate is sourced in technical and pharmaceutical grades, with the latter conforming to Ph.Eur. and USP monograph requirements. The substance is registered under REACH and subject to classification under CLP regulation. Standard packaging includes 25 kg fiber drums and bulk quantities; documentation typically includes SDS, CoA, and REACH compliance confirmation.
In pharmaceutical synthesis, it acts as a reducing agent and intermediate in oxime formation, converting ketones and aldehydes into stable oximes under controlled conditions. In water treatment, it functions as an oxygen scavenger, reacting directly with dissolved oxygen to prevent corrosion in boiler and cooling systems. Personal care formulators apply it as a pH-dependent skin conditioner and humectant.
Hydroxylamine sulfate is sourced in technical and pharmaceutical grades, with the latter conforming to Ph.Eur. and USP monograph requirements. The substance is registered under REACH and subject to classification under CLP regulation. Standard packaging includes 25 kg fiber drums and bulk quantities; documentation typically includes SDS, CoA, and REACH compliance confirmation.
Physical Properties
| Melting Point | 120 °C (decomp) |
| Boiling Point | 56.5°C |
| Density | 1.88 g/cm³ |
| Appearance | white crystals or powder |
| Color | White |
| Form | Crystals |
| Water Solubility | 329 g/L (20 ºC) |
| Vapor Pressure | 0.001Pa at 20℃ |
| pH | 3.6 (10g/l, H2O, 20℃) |
| Log P | -1.031 (est) |
Safety & Handling (Learn More)
Danger GHS05 GHS07 GHS08 GHS09
H
H290H302H312H315H317H319H351H370H371H372H373H400H412H302+H312
P
P203P234P260P261P264P270P272P273P280P317P318P319P321P330P390P391P405P406P501P264+P265P301+P317P302+P352P308+P316P332+P317P333+P317P337+P317P362+P364P305+P351+P338
Trade & Regulatory
| HS Code | 28251000 |
| UN Number | 2865 |
| ADR Class | 8 |
| Packing Group | III |
| Storage Class | 4.1A - Other explosive hazardous materials |
| WGK (Germany) | 3 |
Other Names
Hydroxylammonium SulfateHASLanasane LABOxammonium sulfateHYDROXYLAMINE SULPHATEHydroxylamine, sulfateHYDROXY AMMONIUM SULFATE
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Raw Materials
Derivatives
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