Description

Kieserite is a naturally occurring mineral and a vital source of water-soluble magnesium and sulfur for industrial and agricultural applications. Its high purity and consistent quality make it an essential raw material for formulating effective fertilizers and specialty chemicals. This product is primarily needed by the agricultural industry for crop nutrition, as well as by manufacturers in animal feed, construction materials, and chemical synthesis.

Application

• Agricultural Fertilizers: A direct-application magnesium and sulfur fertilizer for correcting soil deficiencies in a wide range of crops, including fruits, vegetables, and cereals.
• Compound Fertilizer Production: A key ingredient in the manufacturing of NPK and other blended fertilizers to provide essential secondary nutrients.
• Animal Feed Supplement: Used as a nutritional additive in mineral premixes to support livestock health and metabolic functions.
• Industrial Chemical Synthesis: Serves as a magnesium source in various chemical processes and the production of other magnesium compounds.
• Construction Materials: Utilized in the production of specialty cements, fireproofing materials, and as a setting regulator.
• Water Treatment: Applied in certain water conditioning processes.

Basic Information

Product Name	Kieserite
CAS No.	14567-64-7
Molecular Formula	MgSO₄·H₂O
Molecular Weight	138.38 g/mol
Synonyms	Magnesium sulfate monohydrate; Kieserite mineral; Magnesium sulphate monohydrate; Epsom salt monohydrate; Sulfuric acid, magnesium salt (1:1), monohydrate; Magnesium(II) sulfate monohydrate
EINECS	Contact for details

Quality Control

Our Kieserite is produced and tested to meet stringent quality standards suitable for industrial and agricultural use. We ensure batch-to-batch consistency through rigorous analysis of key parameters such as magnesium oxide (MgO) and sulfur trioxide (SO₃) content, as well as limits for heavy metals and other impurities. A Certificate of Analysis (COA) is provided with every shipment to guarantee specification compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic nature, the product must be kept in original packaging or moisture-proof containers to prevent caking and degradation. Maintain storage temperatures between 15°C and 25°C (59°F and 77°F). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to greyish crystalline powder
Identification (IR)	Complies
Assay (as MgSO₄·H₂O)	≥ 95.0 %
Magnesium Oxide (MgO) Content	≥ 25.0 %
Sulfur Trioxide (SO₃) Content	≥ 55.0 %
Loss on Drying	≤ 15.0 %
Water Insolubles	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 2 ppm

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