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ChemicalBook--->CAS DataBase List--->7803-63-6

7803-63-6

7803-63-6 Structure

7803-63-6 Structure
IdentificationMore
[Name]

Ammonium hydrogen sulfate
[CAS]

7803-63-6
[Synonyms]

AMMONIUM BISULFATE
AMMONIUM HYDROGEN SULFATE
Sulfuricacid,monoammoniumsalt
ammonium hydrogensulphate
Acid ammnonium sulfate
Ammonium acid sulfate
Ammonium bisulfate
Acid ammnonium sulfate
Ammonium acid sulfate
Ammonium hydrogensulfate, 99.99% metals basis
ammonium sulfate monobasic
AMMONIUMBISULFATE,CRYSTAL,REAGENT
AMMONIUMBISULFATE,TECHNICAL
AMMONIUMBI-SULPHATE
Ammoniumhydrogensulfat
Ammonium hydrogen sulfate, 99.9% (metals basis)
Ammonium bisulfate: (Ammonium hydrogen sulfate)
Ammonium hydrogen sulfate, Ammonium sulfate monobasic
AMMONIUM HYDROGEN SULFATE, FOR ANALYSIS
Sulfuric acid hydrogen ammonium salt
[EINECS(EC#)]

232-265-5
[Molecular Formula]

H5NO4S
[MDL Number]

MFCD00051073
[Molecular Weight]

115.11
[MOL File]

7803-63-6.mol
Chemical PropertiesBack Directory
[Appearance]

white crystalline powder or chunks
[Melting point ]

147 °C
[Boiling point ]

350 °C (dec.)(lit.)
[density ]

1.79 g/mL at 25 °C(lit.)
[solubility ]

H2O: 1 M at 20 °C, clear, colorless
[form ]

Crystalline Powder
[color ]

White
[Specific Gravity]

1.79
[Stability:]

Stable. Hygroscopic. Incompatible with acids, bases, oxidizing agents.
[Water Solubility ]

Soluble in water (~115.1 mg/ml at 20°C). Insoluble in acetone, alcohol, and pyridine.
[Sensitive ]

Hygroscopic
[Merck ]

13,500
[InChI]

InChI=1S/H3N.H2O4S/c;1-5(2,3)4/h1H3;(H2,1,2,3,4)
[InChIKey]

BIGPRXCJEDHCLP-UHFFFAOYSA-N
[SMILES]

S(=O)(=O)(O)O.N
[LogP]

-1.031 (est)
[CAS DataBase Reference]

7803-63-6(CAS DataBase Reference)
[EPA Substance Registry System]

7803-63-6(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

C
[Risk Statements ]

R34:Causes burns.
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
[RIDADR ]

UN 2506 8/PG 2
[WGK Germany ]

1
[F ]

3
[TSCA ]

Yes
[HazardClass ]

8
[PackingGroup ]

II
[HS Code ]

28332990
[Safety Profile]

Moderately toxic by ingestion. A corrosive. See also SULFATES. Dangerous; when heated to decomposition it emits highly toxic fumes of sulfuric acid and SO,, NH3, and NOx,.
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Sulfamic acid, hydroxy--->Imidodisulfonic acid-->Disulfamoylimide-->Water-->Sulfuric acid-->Sulfamic acid
[Preparation Products]

Hydrogen peroxide-->Phosphoric acid-->Acrylic acid-->1-Naphthol-->Phenylacetic acid-->Ethyl acrylate-->tert-Butylamine-->Hydrochloric acid
Hazard InformationBack Directory
[General Description]

AMMONIUM HYDROGEN SULFATE(7803-63-6) is a colorless to white, powdered solid. AMMONIUM HYDROGEN SULFATE(7803-63-6) is toxic by ingestion. When heated to high temperatures, AMMONIUM HYDROGEN SULFATE(7803-63-6) may release toxic sulfur oxide and nitrogen oxide fumes. AMMONIUM HYDROGEN SULFATE(7803-63-6) is soluble in water. AMMONIUM HYDROGEN SULFATE(7803-63-6) is a chemical catalyst, used in hair preparations.
[Reactivity Profile]

Acidic salts, such as AMMONIUM HYDROGEN SULFATE, are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.
[Air & Water Reactions]

Ammonium hydrogen sulfate dissolves in water with the evolution of some heat and hydrolyzes to form some amounts of sulfuric acid. Deliquescent.
[Health Hazard]

TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
[Fire Hazard]

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.
[Chemical Properties]

white crystalline powder or chunks. This compound is one of several salts that can form from the reaction of ammonia and sulfur bearing gases, most particularly sulfur trioxide. This product is frequently found in the overhead of crude distillation units and can be quite corrosive to steel equipment. Chemical corrosion inhibitors are often used to control corrosion from ammonium bisulfate.
[Uses]

Ammonium hydrogen sulfate is used as pharmaceutical intermediates and chemical reagents.
[Uses]

In hair-waving preparations; as catalyst for organic reactions.
[Purification Methods]

It crystallises from water at room temperature (1mL/g) on adding EtOH and cooling. (NH4) HSO4 is formed as deliquescent rhombic crystals on cooling a solution of (NH4)2SO4 in hot conc H2SO4 but EtOH decomposes it to (NH4)3H(SO4)2 [Dunnicliff J Chem Soc 123 476 1923]. When powdered (NH4)2SO4 is heated below 100o, it loses NH3, and at 300o it is completely converted to fused (NH4) HSO4, m 140o, but >300o it decomposes to SO2 and N2 [Smith J Chem Soc 30 253 1911].
Spectrum DetailBack Directory
[Spectrum Detail]

Ammonium hydrogen sulfate(7803-63-6)IR1
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

Ammonium hydrogen sulfate, for analysis(7803-63-6)
[Alfa Aesar]

Ammonium hydrogen sulfate, 99.9% (metals basis)(7803-63-6)
[Sigma Aldrich]

7803-63-6(sigmaaldrich)
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