Magnesium Sulphate White Crystal 0.1-1mm

Magnesium Sulphate Heptahydrate, chemical formula: MgSO₄·7H₂O, is one of the most widely used raw materials with outstanding stability and water solubility for magnesium and sulfur supplementation. Our product adopts high-standard purification technology, presenting as pure white transparent acicular or columnar crystals. Different from low-grade products with dull or yellowish color, our crystals are bright, regular in shape and uniform in particle size with extremely low impurities.

The product is chemically stable at room temperature. Slight weathering only occurs under long-term exposure to high temperature and humidity, and it resists caking and deterioration for long-term storage. It dissolves rapidly in water with clear solution and no suspended solids or sediment, perfectly compatible with modern agricultural fertilization modes such as drip irrigation, sprinkler irrigation, soil drenching, foliar spraying and water-soluble fertilizer compounding.

Meeting relevant industrial and feed grade standards, this product is also extensively used in textile printing & dyeing, papermaking, leather tanning, ceramics, flame retardant materials, water treatment, bath salts and other industries, serving as a versatile and cost-effective basic chemical and agricultural raw material.

(1) High Purity & Low Impurity

Produced with premium raw materials and advanced purification processes, free from sediment, sludge and excessive heavy metals. The pure white crystal guarantees safe absorption for crops, and passes international quality inspections with high qualification rate, ideal for export business.

(2) Superior Water Solubility

Instant and complete dissolution with no sediment or residue. It will not clog drip tapes, micro-spray belts, nozzles and fertilizer applicators, fully suitable for modern precision agriculture.

(3) Combined Magnesium & Sulfur Supplementation for Higher Yield

Magnesium is the core component of plant chlorophyll, while sulfur plays a vital role in synthesizing protein and amino acids. The combined supply of two elements can quickly recover leaf greenness, boost photosynthesis, strengthen plant vigor and disease resistance.

 (4) Improve Crop Growth & Fruit Quality

Regular application effectively prevents magnesium deficiency symptoms such as leaf yellowing, marginal scorch and premature leaf fall. It also increases fruit setting rate, promotes fruit expansion, improves sugar content and coloration, enhances fruit appearance and commercial value.

(5) Wide Compatibility & Mild Properties

Neutral formula causes no root damage, soil acidification or hardening. It can be mixed with most nitrogen-phosphorus-potassium water-soluble fertilizers, medium and trace element fertilizers and amino acid fertilizers.

(6) Excellent Stability for Long-distance Transportation & Storage

Stable crystal structure and strong anti-weathering ability. Hard to cake or deteriorate under proper sealing. Suitable for land and sea transportation, bulk stocking and long-term export trade.

Agricultural Use (Main Application)

Applicable to citrus, mango, grape, strawberry, watermelon, various fruits and vegetables, tea, tobacco, flowers, seedlings, cotton, corn, wheat, rice and all other cash crops and field crops.

Application methods: Foliar spraying, soil drenching, drip irrigation, base fertilization, water and fertilizer integration, raw material for compound water-soluble fertilizers.

Feed Industry

Used as nutritional additive to supplement magnesium and sulfur for livestock and aquatic animals, accelerating growth and metabolism.

Industrial Use

Widely used in textile printing & dyeing, papermaking, leather tanning, ceramics, flame retardant materials, water treatment, chemical additives and brine preparation.

Daily Chemical Industry

Raw material for bath salts, personal care products and other daily chemical accessories.

1. Rapidly replenish magnesium to eliminate yellow leaves, mottled leaves and premature defoliation.
2. Enhance photosynthetic efficiency, promote dry matter accumulation and keep plants vigorous.
3. Stimulate flower bud differentiation, raise fruit setting rate and reduce flower and fruit dropping.
4. Accelerate fruit expansion, increase sugar content, improve color and fruit surface finish.
5. Improve crop resistance to high temperature, drought, diseases and pests.
6. Relieve continuous cropping-induced magnesium deficiency and balance trace elements in soil.

- Standard Package: 25kg woven bag with inner plastic film (double-layer moisture-proof packaging)

- Optional Package: 50kg bag, bulk ton bag and customized small packages

- Sturdy packaging with good tear and moisture resistance, applicable for long-distance transportation, customs declaration and container shipment for export.

1. Store in cool, dry and ventilated warehouses. Avoid outdoor exposure to rain, direct sunlight and humid environment.
2. Keep packages sealed. Please use up promptly after opening to prevent slight surface weathering.
3. Classified as general cargo for transportation, no hazardous properties, simple for transportation and customs clearance.

Q1: What is the payment terms?

T/T with deposit in advance or L/C at sight.

Q2: Can the color of product be changed?

Yes, it can be different colors, the popular colors are blue, green, white. We can also change the color as per customers’ requirement.

Q3: Is it possible for customers to use customized bags?

Yes, customized bags is acceptable. Customers can provide the artwork of customized bags. Or we can design the bags according to customers’ requirement.

Q4: Is it possible for getting the samples?

Yes, samples are provided freely.

Q5: How do you control the quality of your products?

We will do a test by our own lab during the production for every shipment. And we can send our samples to a third party laboratory.