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Magnesium sulfate monohydrate

Magnesium sulfate monohydrate

Magnesium Sulfate Monohydrate (CAS 14168-73-1) has the chemical formula H₂MgO₅S and a molecular weight of 138.38. It presents as colorless monoclinic crystals, soluble in water, slightly soluble in alcohol and insoluble in acetone, with a density of 2.57 g/mL (25℃) and a melting point of 150℃ (decomposed). It is a versatile inorganic chemical with wide applications. Primarily, it is an essential magnesium fertilizer in agriculture, promoting plant photosynthesis, disease resistance and fruit quality by supplementing magnesium, the core element of chlorophyll. It also acts as a laxative and magnesium supplement in medicine, and serves as an additive in printing and dyeing, papermaking, ceramic and fireproof material industries to improve product performance and processing effects.
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Product Details

Magnesium Sulfate Monohydrate (MgSO₄·H₂O)

Agricultural Field——Core Magnesium and Sulfur Dual-element Fertilizer

1.It is applied as base fertilizer, top dressing and foliar fertilizer to supplement magnesium and sulfur essential for plant growth. Magnesium is the core component of chlorophyll, and sulfur is involved in the synthesis of amino acids and proteins, effectively preventing magnesium deficiency chlorosis, sulfur deficiency stunting and other problems in plants.

2.It is suitable for various soils (especially magnesium-deficient acidic soils and sandy soils) and crops, has a significant effect on improving quality and increasing yield of fruits and vegetables, grain and oil, cash crops (citrus, grapes, tomatoes, cotton, rice, etc.), and can also enhance the stress resistance (drought resistance, cold resistance, disease and insect pest resistance) of crops.

3.With good water solubility, it is easily absorbed by plants, and can also be used in water and fertilizer integration, drip irrigation and sprinkler irrigation systems to achieve precise fertilization.

Core Application Overview (Table)

                                                                                               FeildMain Functions & Applications

                                                                                           Agriculture

Mg/S dual-element fertilizer; base/top/foliar fertilizer; for water-fertilizer integration, improve crop yield and stress resistance.

                                                                                             Industry


Raw material for magnesium sulfate series; cement retarder; sewage flocculant adjuvant; printing dyeing color fixer; daily chemical raw material.

                                                                                  Animal Husbandry


Feed additive for livestock/poultry/aquaculture; supplement Mg, promote bone development, improve growth performance and survival rate.


                                                                                         Other Fields


Refined as pharmaceutical grade raw material (purgation, cholagogic); food grade acidity regulator/anti-caking agent.

Key Advantages

  1. High water solubility, fast absorption.
  2. Low hygroscopy, good storage stability.
  3. Dual effects of magnesium and sulfur, multi-scenario application.
  4. Suitable for large-scale industrial and agricultural use.


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Q1: What international standards do your products and services comply with?

A1: Our products fully comply with international standards such as REACH, MSDS, and COA, and we strictly implement the ISO9001 quality management system. We can also provide third-party testing reports (SGS, BV, etc.) according to customer needs.


Q2: How long does it take for goods to be delivered to my country?
A2: The delivery time depends on the transport mode and destination country. Generally, sea transport takes 15-30 days, air transport takes 3-7 days, and we will optimize the transport route to shorten the delivery time as much as possible.


Can you provide customs clearance services for dangerous chemicals?
A3: Yes. Our team is proficient in the customs clearance procedures for dangerous chemicals in various countries, and can provide professional compliant declaration and customs clearance services to ensure smooth customs clearance.


Q4: Do you provide customized product and service solutions?
A4: Yes. We can provide personalized product customization and export service solutions according to your specific needs (product specifications, application scenarios, procurement volume, etc.).

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