Ammonium Sulfate(CAS 7783-20-2)
| Purity | Grade | Package | Stock | Price | Quantity |
| 98% | RG | 100G | In Stock | 3 USD
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| ≥99.99% metals basis | RG | 25G | In Stock | 8 USD
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| ≥99.99% metals basis | RG | 100G | In Stock | 19 USD
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| ≥99.99% metals basis | RG | 500G | In Stock | 55 USD
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| ≥99.99% metals basis | RG | 2.5KG | In Stock | 267 USD
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| ≥99.99% metals basis | RG | 25KG | In Stock | 2615 USD
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Applications of 7783-20-2
| Industry | Application | Process |
|---|---|---|
| Agriculture | Nitrogen fertilizer providing plant-available ammonium nitrogen and sulfur | Applied directly to soil or blended with phosphate and potassium fertilizers to produce compound fertilizers |
| Food Industry | Food additive (acidity regulator, nutrient fortifier) used in flour-based products and as a yeast nutrient | Added to baked goods such as bread and biscuits to promote yeast fermentation; used within limits specified in GB 2760-2014 |
| Pharmaceutical Industry | Salting-out agent for protein purification, used to precipitate and separate antibodies, enzymes, and other biomacromolecules | Added prior to chromatography; target proteins are selectively precipitated by gradually increasing ammonium sulfate concentration |
| Textile Industry | Dyeing auxiliary (dye-fixing agent) enhancing fixation rates of reactive and acid dyes on fibers | Added to dye baths for cotton, wool, and silk to adjust electrolyte concentration and improve dye adsorption |
| Fire-Retardant Materials | Flame-retardant component for impregnation treatment of wood, paper, and textiles | Formulated with phosphates and borates; applied via impregnation-drying to form a thermally stable char layer |
| Electroplating Industry | Buffer and conductive salt in plating baths, stabilizing pH and enhancing conductivity in nickel, copper, and other metal electroplating solutions | Added to nickel plating baths (e.g., Watts nickel bath) to maintain pH at 3.8–4.2 and reduce bath resistivity |
Physical and chemical properties of 7783-20-2
Boiling Point |
330ºC at 760 mmHg |
|---|---|
Decomposition |
On heating in an open system, the compound begins to decompose at about 150 °C, yielding ammonium bisulfate (NH4HSO4), and releasing ammonia. |
Density |
1.77 g/cu cm |
Exact Mass |
132.020477 |
Flash Point |
26 °C |
Index of Refraction |
Index of refraction: 1.521, 1.523, 1.533 |
LogP |
0.75190 |
Melting Point |
280 °C (decomposes) |
Merck |
14,555 |
Molecular Formula |
H8N2O4S |
Molecular Weight |
132.139 |
Odor |
Odorless |
pH |
pH = 5.5 (0.1 M aqueous solution) |
pH Range |
5 - 6 |
PSA |
86.22000 |
Solubility |
132g/L at 20°C |
Stability |
Stable. Contact with strong oxidizers may cause fire or explosion. Incompatible with strong bases. |
Storage condition |
room temp |
Vapour Pressure |
Vapor pressure of saturated solution: 0.901 kPa at 10 °C; 1.319 kPa at 15 °C; 1.871 kPa at 20 °C; 2.573 kPa at 25 °C; 3.439 kPa at 30 °C; 4.474 kPa at 35 °C |
Water Solubility |
H2O: 1 M at 20 °C, clear, colorless | 77 g/100 mL (25 ºC) |
λmax |
λ: 260 nm Amax: ≤0.037 λ: 280 nm Amax: ≤0.030 |
Q&A for CAS 7783-20-2
1. How can I verify product quality?
Every batch of our Chemical Reagents is tested to meet ISO 9001 standards. We provide COA & NMR & SDS Provided with each shipment. Batch COA available for verification, and third-party retesting is supported. A full refund is offered if our data is incorrect.
2. What is the delivery time?
Orders from Ready stock / In stock items typically Ships Tomorrow via Fast Shipping via FedEx/DHL/UPS. International deliveries usually arrive within 7 business days, subject to customs clearance.
3. What if the received product doesn’t meet quality standards?
If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.
4. Are hazardous labels included? How is safe shipping ensured?
Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.
5. Do you offer technical support?
Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.
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Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.
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Yes. Items labeled In stock / Ready stock on our website are available for immediate shipment, usually within 1–2 business days. Large packs or custom specifications require lead time confirmation.
9. Can you customize purity or packaging?
Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.
10. Is the COA consistent with the shipped batch?
Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.
11. Do you support long-term supply agreements?
Yes. We offer Lab Supplier services for stable batch consistency, pricing agreements, and safety stock for long-term customers to ensure uninterrupted supply.
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Download SDS of 7783-20-2
Pictograms |
 |
|---|---|
Signal Word |
Warning |
Hazard Statements |
H302 Harmful if swallowed H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation |
Safety Data Sheet |
Download COA of 7783-20-2
Operate under the ISO 9001 system
