Description

Langbeinite is a naturally occurring, double sulfate mineral of potassium and magnesium, valued as a premium, water-soluble source of two essential plant nutrients. Its unique composition provides a chloride-free and low-salt index fertilizer solution, making it critical for improving crop quality and soil health in sensitive agricultural systems. This product is primarily needed by the global agriculture and horticulture industries for specialty fertilizer formulations, soil amendment programs, and high-value crop nutrition.

Application

• Specialty Fertilizer Production: A key raw material for manufacturing water-soluble, chloride-free fertilizers, particularly for fertigation and foliar feeding systems.
• High-Value Crop Nutrition: Essential for providing a balanced supply of potassium (K) and magnesium (Mg) to chloride-sensitive crops such as tobacco, fruits, vegetables, and berries.
• Soil Amendment & Reclamation: Used to correct magnesium deficiencies and improve soil structure without increasing salinity, beneficial in arid and semi-arid regions.
• Organic & Sustainable Farming: An approved input for organic certification programs (e.g., OMRI) as a natural mineral fertilizer.
• Hydroponics & Greenhouse Cultivation: Provides a clean, soluble source of K and Mg for nutrient solutions in controlled environment agriculture.
• Golf Course & Turf Management: Used in professional turf blends to enhance color, stress tolerance, and root development without burning.

Basic Information

Product Name	Langbeinite
CAS No.	14977-37-8
Molecular Formula	K2Mg2(SO4)3
Molecular Weight	642.99 g/mol
Synonyms	Dipotassium dimagnesium trisulfate; Magnesium Potassium Sulfate; K-Mag; Sul-Po-Mag; Patentkali; Kalimagnesia; K2O·2MgO·3SO3; Natural Double Sulfate of Potassium and Magnesium
EINECS	239-081-1

Quality Control

Our Langbeinite is sourced and processed to meet stringent quality standards for agricultural and industrial use. Product quality is verified through rigorous in-house testing for critical parameters such as nutrient content (K2O, MgO), solubility, particle size, and chloride levels. While typically supplied in technical or agricultural grades, we ensure batch-to-batch consistency and traceability. Certificates of Analysis (COA) detailing specific lot specifications are available upon request.

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 material is hygroscopic (moisture-sensitive) and must be kept in original packaging or moisture-proof containers to prevent caking and degradation. Keep away from incompatible materials and protect from physical damage.

Specification

Item	Specification
Appearance	Pinkish to reddish-brown granular or powder
Identification (XRD)	Conforms to Langbeinite structure
Potassium (as K2O)	≥ 22.0 %
Magnesium (as MgO)	≥ 18.0 %
Sulfur (as S)	≥ 22.0 %
Chloride (Cl) Content	≤ 3.0 %
Water Solubility	≥ 95 %
Moisture (Loss on Drying)	≤ 2.0 %

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