Sodium Metasilicate Pentahydrate

1. Product Definition: What is Sodium Metasilicate Pentahydrate?

1.1 Basic Chemical Introduction Sodium Metasilicate Pentahydrate (SMP) is an inorganic silicate with the chemical molecular formula: Na₂SiO₃ · 5H₂O

This product appears as white, uniform crystalline granules. It is produced by crystallizing purified sodium silicate solution under strictly controlled temperature conditions. Compared with anhydrous sodium metasilicate, the pentahydrate form offers moderate alkalinity and milder corrosivity. It does not readily absorb moisture or deliquesce under standard warehousing conditions, making it the most widely used inorganic builder and silicate auxiliary in medium-to-low alkalinity cleaning formulations.

1.2 Core Functional Characteristics

Superior Detergency & Emulsification: Rapidly saponifies, emulsifies, and disperses heavy oils and tenacious soils in industrial cleaning applications.

Strong pH Buffering Capacity: Stabilizes the alkalinity of cleaning baths throughout the washing process, extending the sustained cleaning efficacy of detergents.

Anti-Redeposition Performance: Carries a negative surface charge, effectively preventing detached soils from re-adhering to substrates or fabric surfaces.

Dispersion & Chelation: Complexes Ca²⁺ and Mg²⁺ ions in hard water, enhancing water softening efficiency and preventing scale precipitation.

2. Core Competitive Advantages

2.1 Uniform Crystal Particle Size & Strict Anti-Caking Control Utilizing advanced gradient-cooling continuous crystallization technology, the particle size is precisely controlled within the 40–120 mesh range. A food-grade anti-caking coating agent is applied inline, ensuring the product remains free-flowing for up to 12 months in sealed storage. This definitively resolves the common pain point of caking and agglomeration during long-distance transoceanic transportation.

2.2 Low Free Alkali & Low Insoluble Impurities We insist on using self-purified liquid sodium silicate as the raw material, which undergoes two-stage precision filtration to remove calcium and magnesium precipitates. Actual test values show free alkali content of ≤ 1.0% and insoluble residue of ≤ 0.08%. These ultra-low levels ensure no clogging of automatic detergent spray nozzles or ceramic glaze conveying pipelines.

2.3 Customizable Alkalinity and Modulus We can flexibly adjust the ratio of total alkali (Na₂O) to silica (SiO₂) according to the specific formulation needs of global downstream buyers. This ensures a perfect fit for diverse production scenarios, ranging from lightweight household laundry liquids, heavy-duty industrial degreasers, to ceramic glaze auxiliaries.

2.4 Complete Silicate Industrial Chain Guarantee We possess an integrated production chain encompassing "our own quartzite mine + liquid sodium silicate synthesis workshop + automated crystallization lines." Complete control over all raw material links allows us to manage quality and costs from the source, thoroughly eliminating the batch-to-batch quality fluctuations commonly seen with small traders who rely on externally purchased materials.

3. Complete Technical Specifications

3.1 Industrial Standard Grade Sodium Metasilicate Pentahydrate

3.2 Custom Low-Alkali Specialty Grade Specifically designed for household light-duty detergents and daily chemical cleaning auxiliaries. Through a special process, the free alkali is strictly controlled within 0.6%, resulting in an exceptionally mild formulation that causes no significant corrosion to fabric fibers or sensitive metal surfaces even with prolonged use.

4. Diverse Application Fields & Real Overseas Customer Cases

4.1 Industrial & Household Detergent Industry Serves as a core inorganic component in laundry powders, liquid detergents, metal degreasers, and dishwashing detergents. It acts as a cost-effective hard water stabilizer, significantly enhancing the cleaning efficiency of surfactants while reducing their required dosage.

Case Study: KYHG® has consistently supplied major detergent manufacturers in Indonesia, Mexico, and Malaysia on a monthly basis for five consecutive years, with cumulative full-container orders exceeding 2,200 metric tons.

4.2 Ceramic Tile & Sanitaryware Glaze Industry Functions as a specialized, high-efficiency dispersant for ceramic glaze slurries. It effectively eliminates particle agglomeration, preventing pinholes, color differences, or streaks on fired tile surfaces, and significantly improves glaze smoothness and gloss.

4.3 Textile Printing & Dyeing Industry Used as a textile scouring auxiliary. It efficiently removes waxes and impurities from cotton fabrics during pretreatment, stabilizes the pH of scouring baths, and prevents yellowing or discoloration of fabrics during high-temperature washing.

4.4 Industrial Wastewater Treatment Acts as a water softener and auxiliary agent, effectively chelating heavy metal ions in printing, dyeing, and electroplating wastewater. It aids flocculants in rapid precipitation, assisting industrial effluent in meeting environmental discharge standards.

4.5 Other Applications Includes metal surface polishing and cleaning, waste paper de-inking in the paper industry, and degreasing in leather processing.

5. Full Certification Portfolio & Rigorous Quality Control System

5.1 Complete Documentation for Global Export Clearance Every batch of KYHG® products comes with the full set of certificates required for customs clearance in major global regions:

General Industrial Grade: ISO9001 Quality Management System, ISO14001 Environmental Management System, SGS Heavy Metals & Hazardous Substances Test Report, complete EU REACH Registration documents, and the latest MSDS.

Low-Alkali Detergent Grade: Food Contact Material Safety Test Report for household cleaning raw materials.

5.2 Full-Process Quality Control

Incoming Raw Material Inspection: Each batch of incoming liquid sodium silicate is tested for modulus and impurities.

Online Temperature Control: A fully automated DCS system monitors the temperature profile throughout the crystallization process in real-time.

Precise Screening: Finished crystals are screened through multi-layer vibrating sieves to strictly prevent the inclusion of large agglomerated particles.

Pre-Shipment Random Sampling: Comprehensive random sampling and testing of all specifications are conducted before bagging, with a Certificate of Analysis (COA) issued for each batch.

Batch Retention System: A strict batch traceability management system is implemented, with retained samples kept for 24 months.

6. Packaging, Logistics, and Comprehensive After-Sales Service

6.1 Multiple Customizable Packaging Options

Standard Industrial Packaging: 25kg woven bags with a built-in anti-moisture PE inner liner.

Bulk Packaging: 1000kg / 1250kg double-sealed jumbo bags.

Sample Small Packaging: 5kg / 10kg color-printed small bags.

Note: All packaging supports OEM customization, including brand logos, multilingual labels, and specific color printing patterns.

6.2 Shipping & Logistics Arrangements

Regular Stock Orders: Shipment is completed within 3–7 working days after receipt of deposit.

Custom Specification Orders: Production typically takes 13–21 working days, depending on quantity and specific index requirements.

Logistics Options: Support for Full Container Load (FCL), Less than Container Load (LCL), and air freight/courier services.

6.3 Comprehensive After-Sales Support Policy

Technical Documentation: Provides the "Sodium Metasilicate Pentahydrate Formulation Adaptation Guide" for the detergent, ceramic, and textile industries.

Technical Consultation: Offers one-on-one online video technical consultations, with response to production issues within 24 hours.

Quality Compensation Mechanism: If the delivered product fails to meet the contracted specifications upon third-party re-inspection, KYHG® commits to negotiating a resolution, which may include free re-production, a discount on the invoice, or a full refund.

7. Customized Production Process & Sample Testing Policy

7.1 Complete Custom Production Workflow

Client Submits Requirements: Specify standard grade / low-alkali grade, particle mesh size, packaging type, and downstream application industry.

Formula Matching & Quotation: R&D team matches the appropriate alkalinity formula and issues a formal commercial quotation.

Free Sample Shipment: Laboratory samples are prepared and shipped free of charge (client only bears international courier freight).

Specification Confirmation: Client conducts performance tests (detergency, dispersion) and confirms all specifications.

Mass Production Arranged: Upon receipt of deposit, full-scale factory production begins according to the confirmed sample specifications.

Loading & Shipment: Batch Certificate of Analysis (COA) is issued prior to shipment, followed by container loading and delivery.

7.2 Sample, Testing, and Warranty Terms

Free Samples: Free laboratory samples (500g – 5kg) are available for global industrial purchasers.

Third-Party Re-Inspection: Clients may designate a third-party inspection agency for pre-shipment re-inspection prior to bulk delivery.

Accompanying Documentation: Each shipment includes free MSDS, batch COA, and relevant certificates.

Warranty Period: Official warranty of 12 months under cool, dry, and sealed warehouse storage conditions.

Return/Replacement Support: If non-conforming specifications are identified within 3 months of arrival at the destination port, clients may apply for compensation or re-shipment.