Manufactured in Gujarat, India
K₂SnO₂·3H₂O
Potassium Stannate
Our Stannous Sulphate (SnSO₄) contains high tin content and is widely appreciated for its stability, fast solubility, and reliable plating performance in acidic tin plating baths. The product is extensively used in electroplating industries for producing bright, corrosion-resistant tin coatings on metal surfaces.
39% Sn Min
Meghachem Industries has built a strong reputation as a Potassium Stannate manufacturer from Gujarat, India, serving buyers across electroplating, electronics, fire retardant, and textile industries in over 25 countries. Our Potassium Stannate (K₂SnO₂·3H₂O) is produced using controlled synthesis processes and tested against 7 parameters before every dispatch, so buyers receive consistent purity shipment after shipment.
K₂SnO₂·3H₂O
Chemical formula
12125-03-0
CAS No.
298.95 g/mol
Molecular Weight
Tin Plating
Reducing Agent
Textile Mordant
Pharmaceuticals
20+
Years Manufacturing
25+
Countries Served
6,000
MT Annual Capacity
ISO
Certified Facility
Potassium Stannate Manufacturer & Supplier in India
Potassium Stannate is a white crystalline powder and one of the most important tin(IV) compounds used in industrial manufacturing. In alkaline tin electroplating, it is the preferred choice over Sodium Stannate for high-precision applications because potassium-based alkaline baths deliver greater stability, better throwing power on complex geometries, and a wider operating temperature range. This makes it the tin source of choice for aerospace, medical device, and electronics-grade plating operations.
Beyond electroplating, Potassium Stannate serves as a flame retardant additive in polymer and textile applications, and as a weighting agent in the textile finishing industry. Its tin(IV) alkaline chemistry also makes it suitable for use in processes where Sodium Stannate would introduce unwanted sodium content into the bath or formulation. Our product is manufactured to meet the purity demands of all these end uses and is exported with full COA, MSDS, and compliance documentation.
- Appearance
White Powder
| Chemical Formula | K2SnO2·3H2O |
| CAS Number | 12125-03-0 |
| Molecular Weight | 298.95 g/mol |
| Solubility in Water | 110.5 g/100 mL at 15°C |
| Nature | Alkaline tin(IV) compound, water-soluble white powder |
| Tin Oxidation State | +4 (Stannate / Tin IV) |
- Standard Specifications
| Parameters | Our Standard |
|---|---|
| Sn Percentage | 39.00% Min |
| Water Insoluble Matter | < 500 ppm |
| Free Alkali % | < 1.5% |
| Chloride (Cl-) | < 500 ppm |
| Sulfate (SO42-) | < 200 ppm |
| Nitrate (NO3-) | < 500 ppm |
| Metal Impurities | < 100 ppm |
Storage: Store in Cool and Dry Place, away from Direct Heat. Keep containers tightly sealed to prevent moisture absorption.
- Packing Options
Drum Packaging
25 kg and 50 kg drum packaging
Custom Packing
As per buyer's requirement
What is Potassium Stannate Used For?
Potassium Stannate serves four distinct industrial sectors where its superior bath stability and high-purity tin(IV) chemistry give it clear advantages over alternative tin sources.
Electroplating
Alkaline Tin Plating Industries
Potassium Stannate is widely used to replace silver with tin in alkaline electroplating processes. The potassium-based alkaline bath produces smooth, uniform tin coatings on steel, copper, and aluminium substrates. Its high bath stability and wider operating temperature window make it preferred over Sodium Stannate for general-purpose alkaline tin plating in food packaging, electrical contacts, and corrosion protection applications.
Electronics & High-Precision Plating
Electronics, Aerospace & Medical Plating
For applications requiring exceptionally tight deposit control such as PCB components, connector pins, semiconductor lead frames, aerospace fasteners, and medical implant surfaces, Potassium Stannate baths are the industry standard. The potassium electrolyte delivers superior throwing power, minimal co-deposition of impurities, and consistent deposit thickness across complex geometries that Sodium Stannate baths cannot reliably achieve.
Fire Safety
Fire Retardant in Polymers & Textiles
Potassium Stannate functions as an effective halogen-free flame retardant additive in polymer compounds and textile finishing treatments. It works synergistically with other flame retardant systems to reduce the flammability of plastics, coatings, and treated fabrics. Its use is growing as manufacturers across Europe and North America move away from halogenated flame retardants under regulatory pressure.
Textile
Weighting Agent in Textile Industries
In the textile industry, Potassium Stannate has a long history of use as a weighting agent for silk and other natural fibres, adding body, weight, and drape to finished fabrics. It is also employed in selected dyeing and finishing processes where its alkaline tin chemistry assists colour development. The potassium form is preferred in some textile baths because it avoids sodium-related interference with certain dye chemistries.
Why Meghachem for Potassium Stannate?
Meghachem is a dedicated Potassium Stannate manufacturer from Gujarat, India, with a track record of serving precision plating, fire retardant, and textile industries across 25+ countries.
Prominent Gujarat Manufacturer
Meghachem has gained prominence as a leading Stannous Sulphate manufacturer from Gujarat, India, with 30+ years of experience in tin chemical production and export.
7-Parameter Quality Auditing
Every batch of Potassium Stannate is tested against 7 parameters including Sn percentage, free alkali, chloride, sulfate, nitrate, water insoluble matter, and metal impurities before it leaves our GIDC Vatva facility.
High-Precision Plating Grade
Our Potassium Stannate meets the purity demands of electronics, aerospace, and medical plating operations. Metal impurities below 100 ppm and tight free alkali control ensure bath stability in demanding plating applications.
25+ Countries Export Track Record
Active export relationships in Frankfurt, Rotterdam, Istanbul, Dubai, Jakarta, and Ho Chi Minh City with full documentation and compliance support handled in-house from Ahmedabad.
Drum & Custom Packing
Available in 25 kg and 50 kg drum packaging as standard, with custom packing options available as per buyer's requirement for both domestic and export orders, including labelling and documentation in buyer's preferred format.
Direct Technical Support
You communicate directly with our production and technical team. Grade selection queries, plating bath recommendations, and application-specific advice handled with no intermediaries.
What Our Clients Say
Our clients rely on us for consistent quality and dependable supply. Their feedback reflects the trust and long-term relationships we build through every delivery.
Our Core Products
Frequently Asked Questions
The chemical formula of Potassium Stannate is K₂SnO₂·3H₂O. The CAS number is 12125-03-0 and the molecular weight is 298.95 g/mol. It is a tin(IV) compound where tin is in the +4 oxidation state, and it forms a strongly alkaline solution when dissolved in water. Solubility in water is 110.5 g per 100 mL at 15°C.
The CAS number of Potassium Stannate (K₂SnO₂·3H₂O) is 12125-03-0. The molecular weight is 298.95 g/mol. Meghachem manufactures Potassium Stannate with a minimum Sn content of 39.00% and metal impurities below 100 ppm. A Certificate of Analysis confirming these parameters is provided with every shipment.
Potassium Stannate has three primary industrial uses. First, it is the main tin source in alkaline tin electroplating baths, widely used to replace silver with tin on metal substrates. Second, it serves as a flame retardant additive in polymer and textile applications. Third, it functions as a weighting agent in the textile industry for silk and other natural fibres. In high-precision and electronics-grade plating, it is preferred over Sodium Stannate because the potassium-based bath offers greater stability and better deposit quality.
Both Potassium Stannate and Sodium Stannate are used in alkaline tin electroplating baths, but they differ in key performance characteristics. Potassium Stannate baths deliver superior stability, better throwing power on complex and recessed geometries, and are preferred for high-precision plating in electronics, aerospace, and medical applications. Sodium Stannate is more commonly selected for general-purpose alkaline tin plating where cost considerations are the primary driver. The Sn content also differs: Sodium Stannate typically runs at 42% Sn minimum, while Potassium Stannate is at 39% Sn minimum due to the higher molecular weight of the potassium salt.
Our standard specification is Sn Percentage at 39.00% minimum, Water Insoluble Matter below 500 ppm, Free Alkali below 1.5%, Chloride below 500 ppm, Sulfate below 200 ppm, Nitrate below 500 ppm, and Metal Impurities below 100 ppm. Solubility in water is 110.5 g per 100 mL at 15°C. A Certificate of Analysis is provided with every shipment and we can accommodate custom purity specifications on request for qualifying buyers.
Yes. We export Potassium Stannate to 25+ countries including Germany, Netherlands, Turkey, UAE, Oman, Indonesia, Vietnam, USA, Singapore, Malaysia, UK, and Japan. All shipments include COA, MSDS, and country-specific compliance documentation. Export orders are handled in-house from our GIDC Vatva, Ahmedabad facility with no third-party intermediaries.
Product Inquiry
Meghachem Industries, Ahmedabad, Gujarat, India
Business Hours
Feel free to reach out us anytime.
Mon - Sat:
10:00 AM - 18:00 PM
Sunday:
Closed
Calendar Events:
Closed
Contact Info:
Phone:
+91 991 376 7075
Phone:
+91 982 503 2614
Email:
purchase@meghachem.org
Email:
meghachemindustries@outlook.com
Location:
Plot No.8, Phase-2, NR Kadamb Restaurant, GIDC Vatva, Ahmedabad-382445, Gujarat, India.
