Hydroxylamine
CAS 7803-49-8
EC 232-259-2
Formula H3NO
MW 33.03 g/mol
Amines Pharmaceuticals & HealthcareRubber & TireTextile, Leather & PaperAgriculture & Feed CatalysispH Regulation & Buffering
Description
Hydroxylamine (CAS 7803-49-8, EC 232-259-2, formula H3NO) is an inorganic nitrogen compound commercially known under abbreviations including NH2OH, HDA, FH-50, and azanol. It carries no assigned E-code. The compound is classified within the amines category and is registered under REACH.
In pharmaceutical synthesis, hydroxylamine reacts with carbonyl groups to form oximes, a key step in producing active pharmaceutical ingredients and intermediates. In textile and leather processing, it functions as a reducing agent to strip or modify dye structures, enabling precise colour correction. It also serves as a catalyst and pH buffer in agricultural chemical production.
Hydroxylamine is available in aqueous solution at varying concentrations as well as in solid form. Material supplied to European markets complies with REACH registration requirements, and grades suitable for pharmaceutical applications can be provided in accordance with Ph.Eur. standards. Packaging formats are available on request to meet specific handling and volume requirements.
In pharmaceutical synthesis, hydroxylamine reacts with carbonyl groups to form oximes, a key step in producing active pharmaceutical ingredients and intermediates. In textile and leather processing, it functions as a reducing agent to strip or modify dye structures, enabling precise colour correction. It also serves as a catalyst and pH buffer in agricultural chemical production.
Hydroxylamine is available in aqueous solution at varying concentrations as well as in solid form. Material supplied to European markets complies with REACH registration requirements, and grades suitable for pharmaceutical applications can be provided in accordance with Ph.Eur. standards. Packaging formats are available on request to meet specific handling and volume requirements.
Physical Properties
| Melting Point | 33 °C |
| Boiling Point | 70 °C @ Press: 60 Torr |
| Density | 1.227 g/cm³ |
| Appearance | slightly yellow liquid |
| Color | white orthorhombic flakes or needles |
| Form | white flakes or needles |
| Water Solubility | Miscible with water, liquid ammonia and methanol. Slightly miscible with ether, benzene, carbon disulfide and chloroform. |
| Vapor Pressure | 9 mm Hg ( 40 °C) |
| Refractive Index | n 20/D 1.393 |
| pH | 10.6 (20°C in H2O) |
Safety & Handling (Learn More)
Danger GHS01 GHS05 GHS07 GHS08 GHS09
H
H200H290H302H312H315H317H318H335H351H371H372H373H400H410H412H302+H312
P
P201P202P203P234P260P261P264P270P271P272P273P280P281P317P318P319P321P330P372P373P380P390P391P401P405P406P501P264+P265P301+P317P302+P352P304+P340P308+P316P332+P317P333+P317P362+P364P403+P233P305+P354+P338
Trade & Regulatory
| HS Code | 28251090 |
| UN Number | 3082 |
| ADR Class | 9 |
| Packing Group | III |
| Storage Class | 3 - Flammable liquids |
| WGK (Germany) | 3 |
Other Names
aminolazanolnitrinous acidHDANH2OHFH-50FH-50TMEKC 270TOxammonium
Related Products
Raw Materials
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