| Hydroxylammonium sulfate | |
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| Other names | Hydroxylamine sulfate |
| Identifiers | |
| CAS number | [10039-54-0] |
| EINECS number | |
| Properties | |
| Molecular formula | H8N2O6S |
| Molar mass | 164. CAS registry numbers are unique numerical identifiers for Chemical compounds Polymers biological sequences mixtures and Alloys They are also referred to The EINECS number (for European Inventory of Existing Chemical Substances) is a registry number given to each Chemical substance commercially available in the A chemical formula is a way of expressing information about the Atoms that constitute a particular Chemical compound, and how the relationship between those atoms changes Molar mass, symbol M, is the Mass of one mole of a substance ( Chemical element or Chemical compound) 14 g mol−1 |
| Appearance | white crystalline to fine product, slightly hygroscopic |
| Density | 1. The density of a material is defined as its Mass per unit Volume: \rho = \frac{m}{V} Different materials usually have different 10 g cm−3, solid[1] |
| Melting point |
around 170 °C (decomposes) |
| Solubility in water | 370 g l−1 |
| Hazards | |
| MSDS | Oxford PTCL MSDS |
| EU classification | Corrosive (C) Harmful (Xi) Explosive (E) |
| NFPA 704 |
 1
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| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Hydroxylammonium sulfate, (NH3OH)2SO4, is the sulfuric acid salt of hydroxylamine. The melting point of a solid is the temperature range at which it changes state from solid to Liquid. Solubility is the characteristic Physical property referring to the ability of a given substance the Solute, to dissolve in a Solvent. Water is a common Chemical substance that is essential for the survival of all known forms of Life. A material safety data sheet ( MSDS) is a form containing data regarding the properties of a particular substance Council Directive 67/548/EEC of 27 June 1967 on the approximation of laws regulations and administrative provisions relating to the classification packaging and labelling Symbolism The four divisions are typically color-coded with blue indicating level of Health Hazard, red indicating In Chemistry, the standard state of a material is its state at 1 bar (100 Kilopascals exactly Sulfuric (or sulphuric acid, H 2 S[[oxygen O]]4 is a strong Mineral acid. A salt, in Chemistry, is defined as the product formed from the neutralisation reaction of Acids and bases. Hydroxylamine is a reactive chemical with formula NH2OH It can be considered a hybrid of Ammonia and Water due to parallels it shares It is primarily used as an easily-handled form of hydroxylamine, which is explosive when pure.
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Synthesis
Hydroxylammonium sulfate can be obtained by the acid-base reaction of hydroxylamine with sulfuric acid:
- 2NH2OH(aq) + H2SO4(aq) → (NH3OH)2SO4(aq)
Applications
Hydroxylammonium sulfate is used in organic synthesis to convert aldehydes and ketones to oximes, carboxylic acids and their derivatives (e. Hydroxylamine is a reactive chemical with formula NH2OH It can be considered a hybrid of Ammonia and Water due to parallels it shares Organic synthesis is a special branch of Chemical synthesis and is concerned with the construction of Organic compounds via Organic reactions Organic An aldehyde is an organic compound containing a terminal Carbonyl group. A ketone (pronounced as key tone) is either the Functional group characterized by a Carbonyl group (O=C linked to two other Carbon atoms or oxime is one in a class of Chemical compounds with the general formula R1R2 C[[nitrogen N]] O[[hydrogen H]] where R1 is an Carboxylic acids are Organic acids characterized by the presence of a Carboxyl group, which has the formula -C(=OOH usually written -COOH or -CO2H g. esters) to hydroxamic acids, isocyanates to N-hydroxyureas and nitriles to amidoximes. Esters are a class of Chemical compounds and Functional groups Esters consist of an inorganic or organic Acid in which at least A hydroxamic acid is a class of Chemical compounds sharing the same Functional group in which an Amine is inserted into an Carboxylic acid. Isocyanate is the Functional group of atoms &ndashN=C=O (1 Nitrogen, 1 Carbon, 1 Oxygen) not to be confused with the Cyanate A nitrile is any Organic compound which has a - C ≡ N Functional group. Hydroxylammonium sulfate is also used to generate hydroxylamine-O-sulfonic acid from oleum or chlorosulfuric acid. Oleum ( Latin oleum = "oil" or fuming sulfuric acid refers to a solution various compositions of Sulfur trioxide in Sulfuric Chlorosulfuric acid is ClSO2OH This tetrahedral molecule is an intermediate chemically and conceptually between SO2Cl2 and H2SO4
Hydroxylammonium sulfate 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. A scavenger in Chemistry is a Chemical substance added to a mixture in order to remove or inactivate impurities or unwanted reaction products Radical polymerization is a type of Polymerization in which the Reactive center of a polymer chain consists of a radical. An antioxidant is a Molecule capable of slowing or preventing the oxidation of other molecules (NH3OH)2SO4 is a starting material for some insecticides, herbicides and growth regulators. It is used in photography as a stabiliser for colour developers and as an additive in photographic emulsions in colour film. In Film developing, photographic developer (or just developer) is a chemical that makes the Latent image on the film or print visible Photographic emulsion is a layer of light-sensitive material coated onto a substrate "Color film" redirects here For the motion picture equivalent see Color motion picture film.
Decomposition
At 120 °C, hydroxylammonium sulfate 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[1]. Sulfur trioxide (also spelled sulphur trioxide) is the chemical compound with the formula SO3 Nitrous oxide, commonly known as " laughing gas," is a Chemical compound with the Chemical formula N 2 O. Water ( H2[[oxygen O]] H OH) is the most abundant Molecule on Earth 's surface composing of about 70% of the Earth's surface as Ammonia is a compound with the formula N[[hydrogen H3]] It is normally encountered as a Gas with a characteristic pungent Odor An exothermic reaction is a Chemical reaction that releases Heat. Metals (especially copper, its alloys and its salts) catalyse the decomposition of hydroxylammonium sulfate.