Ammonium sulfate
Ammonium sulfate (CAS: 7783-20-2) is an inorganic salt with the linear formula (NH₄)₂SO₄ and a molecular weight of 132.14 g/mol. This white crystalline solid is highly soluble in water and is a common laboratory reagent. It is widely employed as a source of ammonium and sulfate ions in chemical syntheses, in the preparation of buffer solutions, and as a precipitating agent in protein purification.
- IUPAC
- Mascagnite
- Synonyms
- Mascagnite
Chemical Synthesis
Ammonium sulfate serves as a valuable reagent in various chemical syntheses, providing both ammonium and sulfate ions for reactions. It is often used in the preparation of other ammonium salts and organic compounds.
Protein Purification
This compound is frequently used as a precipitating agent in the isolation and purification of proteins. Its ability to reduce protein solubility allows for selective precipitation based on protein characteristics.
Buffer Solutions
Ammonium sulfate is utilised in the formulation of buffer solutions, particularly in biochemical and biological research. It helps maintain stable pH conditions crucial for enzymatic reactions and cellular studies.
Laboratory Reagent
As a fundamental inorganic salt, ammonium sulfate is a staple reagent in analytical and general chemistry laboratories for a variety of experimental procedures and analyses.
| Molecular weight | 132.14 |
|---|---|
| Linear formula | (NH4)2SO4 |
| Assay | ≥99.0% |
| Grade | ReagentPlus® |
| Density | 1.77 g/mL at 25 °C(lit.) |
| Solubility | acetone: insoluble(lit.)ethanol: insoluble(lit.) |
| pH | 5.0-6.0 (25 °C, 5%) |
| Melting point | >280 °C (dec.)(lit.) |
| Concentration | 3.2 M in H2O |
| Storage temperature | room temp |
| Impurities tested | ≤0.005% Insoluble matter |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Cation traces | Fe: ≤5 ppmheavy metals (as Pb): ≤5 ppm |
| Anion traces | chloride (Cl-): ≤5 ppmnitrate (NO3-): ≤0.001%phosphate (PO43-): ≤5 ppm |
| Ignition residue | ≤0.005% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Uv Absorption | λ: 260 nm Amax: 0.3λ: 280 nm Amax: 0.2 |
|---|---|
| Absorption | A1M/260 ≤0.03A1M/280 ≤0.025 |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Ammonium sulfate used for?
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Ammonium sulfate is primarily used as a laboratory reagent, in chemical syntheses, as a precipitating agent for protein purification, and in the preparation of buffer solutions.
What are the CAS number and formula for Ammonium sulfate?
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The CAS number for Ammonium sulfate is 7783-20-2, and its linear formula is (NH₄)₂SO₄.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ammonium sulfate in ReagentPlus® grade with an assay of ≥99.0%. We do not represent this product as USP, BP, or EP grade unless explicitly stated.
How should Ammonium sulfate be handled safely?
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Ammonium sulfate is an eye irritant. When handling, wear safety eyeshields and gloves. Use a P1 (EN143) or N95 (US) respirator filter if dust is generated. Store at room temperature in a well-ventilated area.
Is Ammonium sulfate a controlled substance?
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Based on the provided data, Ammonium sulfate is not listed as a controlled substance.
How is Ammonium sulfate packed and exported by TSS?
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Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Ammonium sulfate, which is carefully packed to ensure safe transit and compliance with international shipping regulations.
How can I request a sample or quote for Ammonium sulfate?
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To request a sample or obtain a quotation for Ammonium sulfate, please contact our sales team through the TSS website or designated contact channels.
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