Your Professional Agricultural Chemicals Supplier

 

Our Perspective:To become an excellent Chinese chemical distributor.
Our Mission:To promote the globalization of Chinese chemicals.

Since 2006, Longfeng has been dedicating itself as an active manufacturer and supplier of chemical products onan international scale. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

 

 
  • Magnesium Sulphate Heptahydrate
    Classification:Sulphate. Type:magnesium sulphate. CAS No.:10034-99-8. Other Names:Kieserite. MF:MgSO4.H2O. EINECS No.:231-793-3. Grade Standard:Agriculture Grade. Purity:99
  • Magnesium Sulphate Monohydrate
    Classification:Sulphate, Sulphate. Type:Magnesium Sulphate. CAS No.:14168-73-1. Other Names:magnesium sulfate. MF:MgSO4.H2O. EINECS No.:242-691-3. Place of Origin:Shandong, China (Mainland). Grade
  • Npk Compound Fertilizer
    Classification:Compound Fertilizer, Compound Fertilizer. Type:NPK. CAS No.:66455-26-3. Other Names:Compound Fertilizer
 

Why Choose Us

 

 

Our Production Capacity: We have a monthly output of 5,000 tons and an annual output of up to 60,000 tons, capable of meeting the supply needs of various products.


Production Markets: Our market has expanded to more than 45 countries and regions, including Chile, Peru, Bolivia, Russia, Argentina, Brazil, Mexico, Spain, Egypt, Colombia, Turkey, Thailand, South Korea, India, Malaysia, Tanzania, Vietnam, Germany, South Africa, Singapore, Jamaica, New Zealand, Mauritius, and Ghana.


Our Services: Get a personalized quote tailored to your specific project needs, with expert answers available instantly. Real-time assistance, no waiting.

 

Types of Agricultural Chemicals

The agricultural chemicals produced by our company mainly include the following types

Magnesium Sulphate Heptahydrate

Ordinary sodium nitrite: white little crystals or light yellow. Dry powder sodium nitrate: white crystal,non-caking, showing loose status.

 

 

 

Npk Compound Fertilizer

Made of high quality ingredients. Consists of 100% plant nutrients. Virtually free of chloride, sodium and other detrimental elements for plants. Provides balanced, complete plant nutrition. Available in a wide range of formulae. It was produced from pure raw materials which doesn't contain any toxic and radioactive substance.

 

Magnesium Sulphate Heptahydrate suppliers

 

Advantages of Agricultural Chemicals

Magnesium Sulphate Heptahydrate
Magnesium sulphate heptahydrate have many advantages, including: Magnesium sulphate heptahydrate (Epsom salt) offers advantages as a versatile compound with applications in agriculture, medicine, and industry due to its high solubility and bioavailability. It is used to correct soil deficiencies in magnesium and sulfur, boost plant growth, and is also used in pharmaceutical and industrial processes.


Npk Compound Fertilizer
Npk compound fertilizer have many advantages, including:
★Nutrient elements: NPK Compound fertilizer has high nutrient content and many types of nutrient elements. One application of compound fertilizer can supply at least two or more main nutrient elements to crops at the same time.
★Uniform structure: The nutrient distribution of NPK fertilizer is relatively uniform. After forming particles, compared with powdered or crystalline unit fertilizers, it has a compact structure, uniform nutrient release, and stable and long fertilizer effect. Due to the small number of by-products, it has little adverse effect on the soil.
★Uniform fertilization: Compound fertilizer particles are uniform, each particle contains multiple elements, and the fertilizer is spread more evenly. It can be applied at one time. Other mixed fertilizers: if urea, diammonium, and potassium fertilizers, they need to be mixed manually before use.

 

Application of Agricultural Chemicals
 

1.Magnesium Sulphate Heptahydrate

Magnesium sulphate heptahydrate can be used for a variety of purposes, including:
★Magnesium sulphate heptahydrate is used in industry: In printing and dyeing industry,it can be used as fabric dyeing agent, weighting agent, mordant, and the aggravating reagent of calico or silk, and filling up of wooden-cotton products. It can be used as a filler to enhance heat resistance in leather industry; used for fireproof material making.
★Magnesium sulphate heptahydrate is used in agriculture and gardening fertilizer: It is applied to magnesium deficient soil, soluble in the water, absorbed by the soil, to make it fertile. As a key component of chlorophyll molecule, it absorbs sunlight, utilizing the light energy for providing food nutrients for plants during photosynthesis, which can strengthen nutrition to increase the output and crop growth.

2.Npk Compound Fertilizer

★Npk compound fertilizer can be used for a variety of purposes, including: High N series for start stage and some vegetables like spinach and cabbage. High P series for appling after transplanting and for crops like beans. High K series for later stage and crops like potato, tomato, tabacco. It is usually used as top dressing and can also be used as base manure and seed manure. This product is extensively applied to grain crops like paddy, wheat, corn and sorghum and to cash crops including tobacco, tea, cotton, gourds, fruits and vegetables

 

Specification of Magnesium Sulphate Heptahydrate

 

Magnesium Sulphate Heptahydrate

Items

Standard

Standard

Low Fe-Standard

Purity

≥98%

≥99.5%

≥99.5%

MgSO4

≥47.86%

≥48.59%

≥48.59%

MgO

≥16%

≥16.24%

≥16.24%

Mg

≥9.65%

≥9.8%

≥9.8%

S

≥11.8%

≥12%

≥12%

Cl

≤0.30%

≤0.014%

≤0.014%

Fe

50ppm max

15ppm max

3ppm max

As

--

2ppm max

2ppm max

Cd

--

2ppm max

2ppm max

Pb

--

6ppm max

6ppm max

Insoluble in water

≤0.10%

≤0.010%

≤0.010%

PH(5W/V%Sol)

41767

41767

41767

Size

0.1-1mm

0.1-0.5/ 1-3/ 2-4/ 4-7mm

0.1-1mm

Appearance

White crystal

Package

25kg,50kg,1000kg, 1250kg,Container bag and OEM color bag

 

Specification of Npk Compound Fertilizer

 

NPK Granular

NPK Crystal (full water soluble)

Formula

Appearance

Formula

Appearance

14-14-14

Granular 2-4 mm

20-20-20+TE

Crystal

15-15-15

Granular 2-4 mm

20-10-30+TE

Crystal

16-16-16

Granular 2-4 mm

15-15-30+TE

Crystal

17-17-17

Granular 2-4 mm

30-10-10+TE

Crystal

18-18-18

Granular 2-4 mm

21-21-21+TE

Crystal

19-19-19

Granular 2-4 mm

13-40-13+TE

Crystal

20-10-10

Granular 2-4 mm

10-52-10+TE

Crystal

15-10-20

Granular 2-4 mm

13-7-40+TE

Crystal

15-15-10

Granular 2-4 mm

15-5-35+TE

Crystal

10-10-30

Granular 2-4 mm

13-3-43+TE

Crystal

10-20-10

Granular 2-4 mm

17-17-17+TE

Crystal

10-10-10

Granular 2-4 mm

18-18-18+TE

Crystal

30-5-5

Granular 2-4 mm

19-19-19+TE

Crystal

 

Packing and Shipping of Agricultural Chemicals

 

Packing

Pp bag or kraft paper bag

Shipping

Shipped by road, sea, rail

 

 

FAQ

 

Q: What is the composition of NPK fertilizer?

A: NPK fertilizer composition refers to a mixture of three primary plant nutrients: nitrogen (N), phosphorus (P), and potassium (K), which are represented by their chemical symbols.

Q: Is too much NPK harmful to plants?

A: There's no denying that NPK fertilizers are an essential tool for promoting healthy crop growth, but their use must be managed carefully. Overusing these fertilizers can cause nutrient imbalances, soil degradation, water pollution, and plant toxicity.

Q: How long does NPK fertilizer stay in the soil?

A: Soil conditions and the number of plants in the area also play a role in how fast nutrients from the fertilizer deplete in the ground. This is how long you can expect fertilizer to last in soil: Liquid fertilizer (organic): 2-4 weeks. Dry fertilizer (organic): 4-6 weeks.

Q: Is magnesium sulfate heptahydrate the same as Epsom salts?

A: Magnesium Sulfate Heptahydrate, commonly known as Epsom salt (CAS No. 10034-99-8), is a crystalline compound with the formula MgSO₄·7H₂O. It is widely used in industries like agriculture and pharmaceuticals due to its high solubility and precise chemical composition.

Q: What is another name for magnesium sulphate heptahydrate?

A: The most common is the heptahydrate MgSO 4·7H2O, known as Epsom salt, which is a household chemical with many traditional uses, including bath salts.

As one of the leading agricultural chemicals manufacturers and suppliers in China, we warmly welcome you to buy high quality agricultural chemicals made in China here and get free sample from our factory. Good service and punctual delivery are available.

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