Product Data

Dr. Paul Lohmann® is a globally recognized manufacturer and supplier of Ammonium Sulfate (CAS No. 7783-20-2) for demanding industrial, pharma and biopharma applications. With decades of expertise in high-quality chemical raw materials, the company supplies consistent, high-purity Ammonium Sulfate tailored to the needs of B2B customers including chemical manufacturers, pharma and biopharmaceutical companies.
Produced under strict quality standards in Germany, Dr. Paul Lohmann®’s Ammonium Sulfate offers excellent reliability for applications requiring precise composition, consistent batch quality, and dependable supply chains.
 

General Characteristics

Synonyms: Diammoniumsulfate

Formula (NH4)2SO4
Molecular weight 132.1 g/mol
CAS No.: 7783-20-2
EINECS No.: 231-984-1
HS No.: 31022100

Product number Product parameter Storage conditions | Retest period Additional information
522040000
  • crystals
  • chem. pure
  • Solubility 20 °C: ++ |
Keep well closed, dry and at room temperature.; 24 months
522040002
  • crystals
  • Ph.Eur.12.Ed. | USP-NF 2025 | DPL-BioPharm | ACS
  • Solubility 20 °C: ++ |
Keep well closed, dry and at room temperature.; 24 months

++ > 100 g/l | + 10 - 100 g/l | − 1 - 10 g/l | −− < 1 g/l
The solubility specified here was measured in water. The solubility is influenced by many factors in the application.

Key Chemical Properties of Ammonium Sulfate

Ammonium Sulfate is an inorganic salt widely used in chemical processing, biotechnology, pharmaceuticals, and industrial manufacturing. Its high solubility and predictable chemical behavior make it an essential reagent in many technical and laboratory processes.

  • Chemical name: Ammonium Sulfate
  • CAS No.: 7783-20-2
  • Chemical formula: (NH₄)₂SO₄
  • Appearance: White crystalline solid or powder
  • Solubility: Highly soluble in water
  • Molecular weight: 132.14 g/mol


Applications of Ammonium Sulfate

Dr. Paul Lohmann® supplies Ammonium Sulfate for specialized B2B applications across multiple industries.

Biopharmaceutical and Biotechnology Industry

In the biopharmaceutical industry, Ammonium Sulfate DPL BioPharm grade (CAS No. 7783-20-2) is widely used as a reliable reagent for protein purification and downstream processing. Due to its strong salting-out effect, it enables the controlled precipitation of proteins, antibodies, and enzymes from aqueous solutions, making it an essential tool in bioprocess development and large-scale biomanufacturing. Ammonium Sulfate is frequently applied during fractionation steps in cell culture processing, enzyme isolation, and antibody purification, where precise control of protein solubility is required. High-purity Ammonium Sulfate from Dr. Paul Lohmann® ensures consistent process performance, reproducibility, and minimal impurities, which are critical for regulated biopharmaceutical production environments. 

Typical uses include:

  • Protein precipitation in downstream processing
  • Buffer preparation in biochemical research
  • Stabilization of proteins and enzymes
  • Cell culture and fermentation processes

Its ability to control protein solubility through salt precipitation (“salting out”) makes it a widely used reagent in life science laboratories and manufacturing facilities.


Pharmaceutical Applications

In pharmaceutical applications, Ammonium Sulfate serves as a functional process reagent and formulation component in various manufacturing processes. It is used in active pharmaceutical ingredient (API) synthesis, crystallization processes, and buffer systems where controlled ionic strength and stable chemical properties are required. Additionally, Ammonium Sulfate supports precipitation and purification steps in pharmaceutical manufacturing, contributing to efficient separation of target compounds and intermediates. Pharmaceutical manufacturers rely on high-quality Ammonium Sulfate from experienced suppliers such as Dr. Paul Lohmann to ensure reliable raw material quality, regulatory compliance, and consistent performance in validated production processes.

Ammonium Sulfate in pharma applications:

  • is used as a process reagent in API synthesis and crystallization processes to control ionic strength and support efficient production steps.
  • Applied in precipitation and purification processes to separate pharmaceutical intermediates and active compounds.
  • Serves as a reliable component in buffer systems and manufacturing processes, supporting consistent quality and reproducibility in pharmaceutical production.


Industrial and Technical Applications

Ammonium sulfate is used in a wide range of industrial processes. In addition to serving as a source of nitrogen and sulfur, it is applied in water treatment, chemical manufacturing, and the production of flame retardants and selected construction materials. Its high solubility and stable properties make it a versatile material for technical applications.

Applications include:

  • Chemical synthesis processes
  • pH regulation and buffering
  • Raw material for further inorganic compound production
  • Industrial formulation components Industrial water treatment
  • Flame retardant formulations
  • Electrochemical processes
  • Process chemistry in specialty chemical production


Advantages of Dr. Paul Lohmann® as your Ammonium Sulfate supplier

Choosing the right Ammonium Sulfate manufacturer and supplier is essential for industries requiring consistent raw material quality and secure supply chains.

High Purity, Consistent Quality and Reliable Supply

As an established global supplier of Ammonium Sulfate, Dr. Paul Lohmann® offers:

  • Stable long-term supply agreements
  • Reliable logistics and global distribution
  • Flexible packaging options for industrial customers
  • High chemical purity
  • Excellent batch-to-batch consistency
  • Reliable analytical specifications


Certifications and Quality Standards

We operate under internationally recognized quality and safety standards.

Quality assurance includes:

  • Strict production and quality control procedures
  • Compliance with international regulatory standards
  • Comprehensive analytical testing
  • Full product documentation and traceability

These measures ensure that Ammonium Sulfate (CAS No. 7783-20-2) meets the high expectations of our global customers.


Request Information About Ammonium Sulfate

Looking for a reliable Ammonium Sulfate (CAS No. 7783-20-2) manufacturer or supplier for your industrial or life science applications?
Contact us today to receive detailed product information, specifications, or a quotation for Ammonium Sulfate.

Frequently asked questions about this product

What is Ammonium Sulfate?

Ammonium Sulfate (CAS No. 7783-20-2) is an inorganic salt with the chemical formula (NH₄)₂SO₄. It appears as a white crystalline solid that is highly soluble in water. Due to its stable chemical properties and predictable behavior in aqueous solutions, it is widely used in industrial processes, biotechnology, and pharmaceutical manufacturing.

What are the main applications of Ammonium Sulfate?

Ammonium Sulfate is used in a wide range of industries, including:

  • Biopharmaceutical and biotechnology applications such as protein purification
  • Pharmaceutical manufacturing processes and API synthesis
  • Chemical synthesis and industrial production
  • Buffer preparation and pH regulation
  • Water treatment and specialty chemical processes

Its ability to control protein solubility makes it especially valuable in biochemical and life science applications.
 

How is Ammonium Sulfate used in biotechnology and biopharmaceutical manufacturing?

In the biopharmaceutical and biotechnology industry, Ammonium Sulfate is widely used for protein purification and downstream processing.
Because of its strong salting-out effect, it allows scientists to selectively precipitate proteins, enzymes, and antibodies from aqueous solutions.

This technique is commonly used in:

  • Protein precipitation during downstream processing
  • Antibody purification
  • Enzyme isolation
  • Cell culture processing
  • Fermentation and biotechnology workflows

High-purity Ammonium Sulfate ensures reproducibility, consistent process performance, and minimal impurities, which are essential for regulated biopharmaceutical production environments.
 

How is Ammonium Sulfate used in pharmaceutical manufacturing?

In pharmaceutical production, Ammonium Sulfate is commonly used as a process reagent and formulation component.

Typical pharmaceutical applications include:

  • API (Active Pharmaceutical Ingredient) synthesis
  • Crystallization processes
  • Precipitation and purification steps
  • Buffer preparation in pharmaceutical formulations
  • Process chemistry in drug manufacturing
     

The information given on this Website corresponds to our current knowledge. We warrant in the frame of our General Terms and Conditions of Sale that our products are manufactured in accordance with the specifications. However, we disclaim any liability with regard to the suitability of our products for a particular purpose or application or their compatibility with other substances. Tests have to be performed by the customer who also bears the risk in this respect. Nothing herein shall be construed as a recommendation to use our products in conflict with third parties' rights.

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