Sulphate of Potash
India's only large scale natural sea brine sulphate of potash, delivering chloride free nutrition for global agriculture.
Sulphate of Potash
Archean Chemical Industries produces sulphate of potash exclusively from natural seawater brine through solar evaporation, India’s only such operation. With 100,000 metric tons annual capacity, we deliver chloride-free potassium specifically engineered for export-quality agriculture and organic farming systems requiring premium nutrition without chloride contamination.
Sulphate of potash is an inorganic water-soluble fertilizer comprising potassium, sulphur, and oxygen naturally precipitated during seawater evaporation. Unlike conventional potassium sources introducing chloride ions, SOP delivers potassium in the sulphate form, directly supporting plant physiology and soil chemistry while meeting strict quality requirements of premium export markets.
Our SOP is produced entirely through natural solar evaporation without chemical conversion, synthesis steps, or artificial intermediates. This production methodology creates inherent sustainability credentials supporting organic certification requirements and premium market positioning. EU REACH certification and compliance with strict export standards enable direct market access to developed countries.
Each batch receives comprehensive quality verification, ensuring consistent K₂O content, minimal chloride levels, optimal particle size distribution, and compliance with premium agricultural standards. From extraction through granulation, packaging, and port delivery, Archean maintains complete control, ensuring consistent quality across all production campaigns.
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STANDARD GRADE
Chloride-free potassium fertilizer produced through natural solar evaporation for conventional agricultural applications. Engineered for diverse crop types and soil conditions with K₂O minimum 50 percent supporting consistent plant nutrition globally.
PREMIUM AGRONOMIC
Premium potassium fertilizer specifically formulated for high-value export-quality agriculture and organic farming systems. EU REACH certified enabling direct market access to developed countries requiring highest product purity and sustainability credentials.
CHEMICAL IDENTITY
Sulphate of potash (K₂SO₄) is an ionic compound comprising potassium and sulphate ions naturally occurring in evaporated seawater. Water solubility enables precise nutrient delivery through fertigation and soil application. The sulphate form directly supports plant metabolism without introducing harmful chloride ions that accumulate in soil profiles and damage plant tissue.
| PROPERTY | VALUE |
|---|---|
| CAS Number | 7778-80-5 |
| Molecular Formula | K₂SO₄ |
| Appearance | Off-white to light brown granules |
| Molecular Weight | 174.26 g/mol |
| Form | Granular powder |
| pH (saturated solution) | 5.5 to 8.0 |
| Solubility @ 20°C | 100 g/100 ml |
| Hazard Class | Non-hazardous |
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What Our Products Offer
Chloride-Free Nutrition
Maximum 0.5% chloride content ensuring premium crop quality without chloride accumulation in soil or plant tissue.
High Potassium Content
K₂O minimum 50% delivering concentrated potassium nutrition for efficient crop uptake and utilization.
Natural Mineral Profile
Includes magnesium, calcium, and trace minerals from seawater, supporting comprehensive soil and plant nutrition.
Water Solubility
100 g per 100 ml water solubility enabling precise fertigation application and rapid plant nutrient availability.
Optimal Particle Size
90% of particles are below 0.8 mm, ensuring uniform soil distribution and consistent nutrient delivery.
Sustainable Production
Solar-powered evaporation requiring no chemical conversion or thermal processing supporting organic certification.
EU REACH Compliance
Full regulatory certification for direct export to European markets, eliminating testing delays and approval requirements.
Consistent Bulk Density
1.4 +/- 0.1 g/cc, enabling standardized application rates and reliable handling through the supply chain.
End Application
Agriculture
Chloride-free potassium nutrition for export-quality horticulture, plantation crops, organic farming, and precision irrigation systems globally.
- Agriculture
Speciality Fertilizer & Plant Nutrition Industry
Commercial Agriculture & floriculture
TECHNICAL SPECIFICATIONS
| Parameter | Test Method | Specification | Compliance |
|---|---|---|---|
| K₂O Content (%) | Flame Photometry | 50% min | Inhouse Method |
| Sulphur as S (%) | Gravimetric | 17% min | Inhouse Method |
| Moisture (%) | Oven Drying | 0.5% max | Inhouse Method |
| Chloride as Cl (%) | Potentiometric Titration | 0.5% max | IS Method |
| Solubility (g/100ml) | Dissolution Test | 100 max | Inhouse Method |
| Particle Size (<0.8mm) | Sieve Analysis | 90% min | Agronomic Grade |
| Bulk Density (g/cc) | Measurement | 1.4 ± 0.1 | IS Standard |
| Appearance | Visual | Off-white to light brown | Inhouse |
CERTIFICATIONS & STANDARDS
ISO 9001:2015
Quality Management
ISO 14001:2015
Environmental
EU REACH Certified
Organic Compliance
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