Description

Sodiumammoniumhydrogenphosphatetetrahydrategr CAS NO 7583-13-3 is a high-purity inorganic salt compound, also known as microcosmic salt. This versatile chemical is valued for its consistent quality and reliable performance in analytical and industrial processes. It serves as a critical reagent for laboratories and manufacturers requiring precise phosphate buffering and analytical standards. Key industries that utilize this product include analytical chemistry, pharmaceuticals, and specialty material synthesis.

Application

• Analytical Chemistry: Used as a primary standard and buffer component in various titrations and analytical procedures.
• Pharmaceutical Manufacturing: Serves as an excipient or a source of phosphate ions in certain drug formulations and buffer systems.
• Laboratory Reagent: Employed in qualitative inorganic analysis, particularly in traditional schemes like the microcosmic salt bead test for metal identification.
• Buffer Solutions: Acts as a component in preparing stable phosphate buffer solutions for biological and chemical research.
• Specialty Catalysts & Materials: Used as a precursor in the synthesis of certain catalysts and advanced ceramic materials.
• Education & Research: A standard compound for teaching and research in university and industrial chemistry laboratories.

Basic Information

Item	Detail
Product Name	Sodiumammoniumhydrogenphosphatetetrahydrategr
CAS No.	7583-13-3
Molecular Formula	NaNH4HPO4·4H2O
Molecular Weight	209.07 g/mol
Synonyms	Ammonium Sodium Hydrogen Phosphate Tetrahydrate; Microcosmic Salt; Sodium Ammonium Phosphate; Ammonium Sodium Phosphate; Fosfato de amonio y sodio (Spanish); Natriumammoniumhydrogenphosphat (German); Tétrahydrate de phosphate d'ammonium et de sodium (French); 磷酸氢铵钠四水合物 (Chinese)
EINECS	231-491-0

Quality Control

Our Sodium Ammonium Hydrogen Phosphate Tetrahydrate is manufactured under a strict quality management system. Each batch undergoes comprehensive testing to ensure it meets high-purity standards suitable for analytical and technical applications. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, loss on drying, and impurity profiles. We adhere to relevant industry guidelines to guarantee product consistency and reliability for our global B2B clients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent caking and degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (NaNH4HPO4·4H2O)	≥ 99.0 %
pH (5% solution)	7.5 - 8.5
Loss on Drying	30.0 - 35.0 %
Insoluble Matter	≤ 0.01 %
Chloride (Cl)	≤ 0.001 %
Sulfate (SO4)	≤ 0.005 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.