PRODUCTS

HYDROXYLAMINE SULPHATE

IUPAC Name: Bis(hydroxyammonium) sulfate
Chemical Formula: (NH2OH)2-H2SO4
CAS Number: 10039-54-0
Molar mass: 64.14 g/mol
EC Number: 233-118-8

Hydroxylamine sulphate (NH3OH)2SO4, is the sulfuric acid salt of hydroxylamine.
Hydroxylamine sulphate can be obtained by the acid-base reaction of hydroxylamine with sulfuric acid:
2NH2OH(aq) + H2SO4(aq) → (NH3OH)2SO4(aq)

Applications of Hydroxylamine sulphate
Main article: Hydroxylamine sulphate Reactions
Hydroxylamine sulphate is used in organic synthesis to convert aldehydes and ketones to oximes, carboxylic acids and their derivatives (e.g. esters) to hydroxamic acids, isocyanates to N-hydroxyureas and nitriles to amidoximes. Hydroxylamine sulphate is also used to generate hydroxylamine-O-sulfonic acid from oleum or chlorosulfuric acid.

Hydroxylamine sulphate is used in the production of anti-skinning agents, pharmaceuticals, rubber, textiles, plastics and detergents. It is a radical scavenger that terminates radical polymerization reactions and serves as an antioxidant in natural rubber. (NH3OH)2SO4 is a starting material for some insecticides, herbicides and growth regulators.
Hydroxylamine sulphate is used in photography as a stabiliser for colour developers and as an additive in photographic emulsions in colour film.

Decomposition of Hydroxylamine sulphate
At 120 °C, Hydroxylamine sulphate begins to decompose to sulfur trioxide, nitrous oxide, water, and ammonia:
2(NH3OH)2SO4 → 2SO3 + N2O + 2NH3 + 5H2O
The reaction is exothermic above 138 °C, and is most exothermic at 177 °C.
Metals (especially copper, its alloys and its salts) catalyse the decomposition of hydroxylamine sulphate.
The instability of this compound is mainly due to the hydroxylamine ion's weak nitrogen to oxygen single bond.

The major use is in Hydroxylamine sulphates reaction with organic compounds to produce derivatives such as Oximes which may be intermediates in the production of materials such as Nylon-6. Hydroxylamine sulphate may also be used as anti-oxidants, stabilizers and anti-skinning agents in inks and paints.

Appearance: white crystalline to fine product, slightly hygroscopic
Density: 1.88 g/cm3
Melting point: 120 °C (248 °F; 393 K) decomposes
Solubility in water: 58.7 g/100 ml (20 °C)
Hydrogen Bond Donor Count: 4
Hydrogen Bond Acceptor Count: 6
Rotatable Bond Count: 0
Exact Mass: 164.01030715
Monoisotopic Mass: 164.01030715
Topological Polar Surface Area: 184 Å²
Heavy Atom Count: 9
Formal Charge: 0
Complexity: 64.2
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count3
Compound Is Canonicalized: Yes

About the Hydroxylamine sulphate
Helpful information
Hydroxylamine sulphate is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 10 000 tonnes per annum.

Article service life
ECHA has no public registered data on the routes by which Hydroxylamine sulphate is most likely to be released to the environment.
ECHA has no public registered data indicating whether or into which articles the substance might have been processed.

Widespread uses by professional workers
ECHA has no public registered data indicating whether or in which chemical products the substance might be used.
ECHA has no public registered data on the types of manufacture using Hydroxylamine sulphate.
Other release to the environment of Hydroxylamine sulphate is likely to occur from: indoor use as reactive substance and outdoor use as reactive substance.

Hydroxylamine sulphates uses at industrial sites
Hydroxylamine sulphateis used in the following products: coating products, laboratory chemicals, plant protection products, pharmaceuticals, polymers, textile treatment products and dyes and washing & cleaning products.
Hydroxylamine sulphate has an industrial use resulting in manufacture of another substance (use of intermediates).
Hydroxylamine sulphate is used in the following areas: scientific research and development.
Hydroxylamine sulphate is used for the manufacture of: chemicals, rubber products and electrical, electronic and optical equipment.
Release to the environment of this substance can occur from industrial use: as processing aid, as an intermediate step in further manufacturing of another substance (use of intermediates), in processing aids at industrial sites and asprocessing aid.

Product Summary
Coatings, Adhesives, Resins
Hydroxylamine sulphate is used as a viscosity stabilizer for natural rubber, and as a non-contaminating short-stopper for synthetic rubber.
A derivative of HAS is also used as a vulcanizer.
Hydroxylamine sulphatess many properties, including selective reactivity to textile fiber functional groups, make it useful for applications such as dye improvers, textile discoloration inhibitors, and modifiers for acrylic fibers and cellulose.
Other uses of Hydroxylamine sulphates include resin improvers, UV stabilizers, and polymerization catalysts.

Life Science Chemicals
Hydroxylamine sulphate is used as a raw material for herbicides, insecticides, germicides, acaricides and other products in the form of derivatives of hydroxamic acid, hydroxy uric acid, carbamate, alkyl hydroxylamine, oxadiazole, and organophosphorous compounds, among others.
Hydroxylamine sulphate is also used as a raw material for germicides, CNS sedatives, antihistamines, sedatives, drugs for high blood sugar, wound infection inhibitors, diuretics, stimulants, blood coagulants, anti-malarial drugs, and diabetes drugs and other products in the form of derivatives of hydroxamic acid, hydroxy uric acid, isoxazole, oxadiazole, oxime, and amide, among others.
Due to Hydroxylamine sulphatess ability to reduce hydroxylamine sulfate and form metal complexes, HAS is used as a metal surface treatment agent, precipitant for separating metal, metal extractant, and rust proofer.

Air & Water Reactions
Water soluble.

Reactivity Profile
Sulfuric acid fumes may form in fires. Solid hydroxylamine sulfate explodes when heated to 170° C . Sodium ignites on contact with hydroxylamine.

Hydroxylamine Sulphate is the sulfuric acid salt of hydroxylamine.
Hydroxylamine sulphate is primarily used as an easily handled form of hydroxylamine, which is explosive when pure.
A raw material for manufacturing in pharmaceuticals, insecticides,etc.

Hydroxylamine sulphate, 98% Cas 10039-54-0 - used in the production of anti-skinning agents, pharmaceuticals, rubber, textiles, plastics and detergents.
Hydroxylamine sulphate is a radical scavenger that terminates radical polymerization reactions and serves as an antioxidant in natural rubber.
(NH3OH)2SO4 is a starting material for some insecticides, herbicides and growth regulators.
Hydroxylamine sulphate, 98% Cas 10039-54-0 - used in photography as a stabiliser for colour developers and as an additive in photographic emulsions in colour film.

The invention relates to the chemical industry, namely to a method for producing hydroxylamine sulphate (HAS) used for caplrolactam production.
The inventive method consists in preparing a reaction mixture, catalytically oxidising ammoniac at a pressure equal to or less than 0.3 MPa, concentrating a nitrous gas by means of water vapours, mixing said concentrated nitrous gas with hydrogen by a mixture of sulphuric acid, water, nitrous gas concentrating condensate, condensate of secondary concentration of HAS and in synthesising HAS.
Nitrous gas heat is used for concentrating a nitric condensate and a HAS solution.
Said nitric condensate is concentrated until a nitric acid mass fraction of 40 % is attained and delivered in the form of a final product which is used for producing mineral fertilisers.
The HAS solution is concentrated until a mass fraction of 40 % is attained by using distillate condensing heat produced during a nitric condensate concentrating.
Said improved method makes Hydroxylamine sulphate possible to reduce investment costs and production energy consumption and to simplify the process control

Hydroxylamine Sulphate is an inorganic sulfate salt obtained by reaction of sulfuric acid with two equivalents of ammonia.
A high-melting (decomposes above 280℃) white solid which is very soluble in water (70.6 g/100 g water at 0℃; 103.8 g/100 g water at 100℃), Hydroxylamine sulphate is widely used as a fertilizer for alkaline soils.
Hydroxylamine sulphate has a role as a fertilizer. Hydroxylamine sulphate is an ammonium salt and an inorganic sulfate salt.

Applications of Hydroxylamine sulphates:
Anti-skinning Agents
Pharmaceuticals
Rubber
Textiles
Plastics
Detergents

Synonyms
Hydroxylammonium sulfate
Hydroxylamine sulfate (2:1)
Oxammonium sulfate
UNII-49KP498D4O
49KP498D4O
bis(hydroxyammonium) sulfate
Hydroxylamine, sulfate
Bis(hydroxylamine) sulfate
Hydroxylamine neutral sulfate
EINECS 233-118-8
Hydroxylammoniumsulfat
UN2865
hydroxyazanium;sulfate
Hydroxylamine, sulfate (2:1) (salt)
hydroxyl ammonium sulfate
hydroxyl ammonium sulphate
hydroxyl-ammonium sulphate
DSSTox_CID_5424
DSSTox_RID_77780
DSSTox_GSID_25424
DTXSID2025424
Tox21_202730
NCGC00091929-01
NCGC00260278-01
CAS-10039-54-0
EC 233-118-8
Hydroxylamine sulfate [UN2865]
Q416490