Hydroxyamine sulfate
Hydroxylamine sulfate
CAS: 10039-54-0
Molecular Formula: H2O4S.2H3NO
Hydroxyamine sulfate - Names and Identifiers
| Name | Hydroxylamine sulfate |
| Synonyms | HAS Hydroxylammonium Oxammonium sulfate Hydroxyamine sulfate Hydroxylamine sulfate Hydroxylammoniumsulfat Hydroxylamine sulphate Hydroxylammonium sulfate HYDROXYLAMMONIUM SULPHATE bis(hydroxyammonium) sulfate bis(hydroxylammonium) sulphate HYDROXYLAMMONIUM SULFATE REAGENT HYDROXYLAMINESULFATE,CRYSTAL,REAGENT |
| CAS | 10039-54-0 |
| EINECS | 233-118-8 |
| InChI | InChI=1/2H3NO.H2O4S/c2*1-2;1-5(2,3)4/h2*2H,1H2;(H2,1,2,3,4) |
Hydroxyamine sulfate - Physico-chemical Properties
| Molecular Formula | H2O4S.2H3NO |
| Molar Mass | 164.14 |
| Density | 1.86 |
| Melting Point | 170°C (dec.)(lit.) |
| Boling Point | 56.5℃ |
| Water Solubility | 329 g/L (20 ºC) |
| Solubility | water: soluble(lit.) |
| Vapor Presure | 0.001Pa at 20℃ |
| Appearance | Crystals |
| Color | White |
| Merck | 14,4828 |
| PH | 3.6 (10g/l, H2O, 20℃) |
| Storage Condition | -20°C |
| Stability | Stability Stable, but may be an explosion hazard - do not heat. May decompose explosively in the presence of alkalies. Air sensitive. Hygroscopic. Incompatible with copper, copper alloys, strong oxidi |
| Sensitive | Hygroscopic |
| Physical and Chemical Properties | Colorless or white crystals. |
| Use | Used as analytical reagents, reducing agents, also used in organic synthesis |
Hydroxyamine sulfate - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R36/38 - Irritating to eyes and skin. R43 - May cause sensitization by skin contact R48/22 - Harmful danger of serious damage to health by prolonged exposure if swallowed. R50 - Very Toxic to aquatic organisms R40 - Limited evidence of a carcinogenic effect R21/22 - Harmful in contact with skin and if swallowed. R2 - Risk of explosion by shock, friction, fire or other sources of ignition |
| Safety Description | S22 - Do not breathe dust. S24 - Avoid contact with skin. S37 - Wear suitable gloves. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN 2865 8/PG 3 |
| WGK Germany | 3 |
| RTECS | NC5425000 |
| FLUKA BRAND F CODES | 21 |
| TSCA | Yes |
| HS Code | 28251000 |
| Hazard Class | 8 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 842 mg/kg LD50 dermal Rabbit 1500 - 2000 mg/kg |
Hydroxyamine sulfate - Upstream Downstream Industry
| Raw Materials | Acetoxime Sulfuric acid Ethyl Alcohol |
Hydroxyamine sulfate - Nature
Open Data Verified Data
colorless or white crystals. The melting point was about 170 °c (decomposition). Boiling point 56.5 °c. Density 1.204g/cm3. Soluble in cold water, ethanol and methanol. Easy to absorb moisture. The nature of hydroxylamine is very unstable, and it is gradually decomposed at room temperature, and it will be explosive at higher temperature. Therefore, it is usually made into relatively stable sulfate and hydrochloride. Among them, hydroxylamine sulfate is the most commonly used.
Last Update：2025-06-10 22:55:16
Hydroxyamine sulfate - Preparation Method
Open Data Verified Data
- methylethylketone is reacted with sulfuric acid and ammonia to form methylethylketone oxime, which is then reacted with sulfuric acid to obtain hydroxylamine sulfate (crystalline form) and methylethylketone and ammonium sulfate by-products by hydrolysis.
- sodium nitrite and ammonium bisulfite are mixed and reacted, sulfur dioxide is introduced at a low temperature to make the reactant absorb hydroxylamine disulfonate, and then hydrolysis is carried out to produce hydroxylammonium sulfate.
- hydroxylamine sulfate can also be obtained by reacting sulfuric acid with nitrohydrocarbons.
Last Update：2022-01-01 10:36:16
Hydroxyamine sulfate - Application
Open Data Verified Data
This product is used as a reducing agent, developer and rubber vulcanizing agent, is an important raw material for the synthesis of caprolactam, is also an intermediate of medicine, pesticide, used in the production of a series of isoxazole derivatives, sulfa drugs and vitamins B6, B,z. In addition, its oxime or hydroxamic acid derivatives can be used for the production of pesticides, fungicides and herbicides. It can also be used for the purification of polymer synthesis raw materials and compounds, polymerization catalysts and reagents.
Last Update：2025-08-19 16:24:40
Hydroxyamine sulfate - Safety
Open Data Verified Data
- hydroxylamine and its salts are considered toxic or highly toxic. This product is irritating to the eyes and skin, and is harmful if inhaled. In mice, the LD50 for oral acute poisoning was 102mg/kg. It is reported that the tolerance of continuous oral administration of this product is 2.2 mg/kg. When the intake of more than a certain amount, not only will appear anemia, the formation of hemoglobin, spleen and other blood poisoning symptoms, and even cause thyroid dysfunction, damage to the nervous system. The workshop should be well ventilated, the equipment should be sealed, and the operator should wear protective equipment.
- This product packaging specifications are: 20kg with kraft paper bag packaging, 20kg with polyethylene lining oil can, lOOkg using fiber drum or iron drum packaging. This product is a strong acid, under alkaline conditions, fast decomposition, and prone to explosion, release hydroxylamine. Therefore, it must be stored in a cool and dry place and not in contact with alkali.
Last Update：2022-01-01 10:36:16
Hydroxyamine sulfate - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | mainly used in the preparation of caprolactam and used as pharmaceutical, pesticide intermediates hydroxylamine sulfate, also known as hydroxylamine sulfate, hydrazine sulfate. Its derivatives, oxime or hydroxamic acid derivatives, can be used in the production of insecticides such as methomyl, aldicarb and methomyl, as well as fungicides and herbicides. Hydroxylamine sulfate is a reducing agent, developer and rubber vulcanizing agent, is an important raw material for the synthesis of caprolactam, also used in the production of isoxazole derivatives, sulfanilamide drugs and vitamin B5, vitamin B12, it can also be used for polymer synthesis and chemical analysis. used as a reducing agent, a developer, and a rubber vulcanizing agent. This product is an important raw material for the synthesis of caprolactam. Is also a pharmaceutical, pesticide intermediates, for the production of a series of isoxazole derivatives, sulfa drugs and vitamin B6, B12. Derivatives oxime or hydroxamic acid derivatives can be used to produce pesticides, insecticides, fungicides and herbicides. It can also be used for the purification of polymer synthesis raw materials and compounds, polymerization catalysts and chemical analysis reagents. used as analysis reagent, reducing agent, also used in organic synthesis inorganic analysis reducing agent, can reduce the compound of gold, silver and Mercury into monomer elements, and Fe3, Cu2, v5 is reduced to low-valent compounds, determination of selenium, biological and biochemical studies, photographic developer, manufacture of oxime, Catalyst, swelling agent, polymerization inhibitor of copolymerization reaction, leather hair removal, etc. |
| production method | 1. With methyl ethyl ketone and sulfuric acid and ammonia reaction to produce methyl ethyl ketone oxime, and then with sulfuric acid reaction, through hydrolysis of hydroxylamine sulfate (crystalline) and methyl ethyl ketone and ammonium sulfate by-products. 2. The reaction is carried out by mixing sodium nitrite and ammonium bisulfite, and sulfur dioxide is introduced to absorb the reactant to obtain hydroxylamine disulfonate at low temperature, and then hydrolysis is carried out to obtain hydroxylamine sulfate. Hydroxylamine sulfate can also be obtained by the reaction of sulfuric acid with Nitro hydrocarbon. There are two synthetic methods of hydroxylamine sulfate. Methyl Ethyl Ketone and sulfuric acid are reacted with ammonia to form methyl ethyl ketone oxime, which is then reacted with sulfuric acid to hydrolyze hydroxylamine sulfate. Sodium nitrite and ammonium bisulfite are mixed, and sulfur dioxide is introduced at 0~5 ℃ to absorb and react to obtain hydroxylamine disulfonate, which is hydrolyzed to hydroxylamine sulfate. |
| category | corrosive article |
| toxicity grade | poisoning |
| Acute toxicity | abdominal injection-mouse LDL0: 102 mg/kg |
| explosive hazard characteristics | Thermal decomposition |
| flammability hazard characteristics | flammable; Thermal decomposition of toxic and explosive fumes |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from the oxidant |
| fire extinguishing agent | water, sand, dry powder, carbon dioxide |
Last Update：2024-04-09 20:52:54
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Raw Materials for Hydroxyamine sulfate