Sodium silicate powder white free-flowing powder in glass beaker showing fine uniform texture for industrial applications

Powdered Sodium Silicate Modulus 2.4-2.5

High-quality sodium silicate powder with modulus 2.4-2.5. Ideal for detergents, foundry casting, refractory binders, construction additives and general industrial manufacturing. Custom modulus & packaging specifications supported by professional manufacturer and exporter.

Model Numbe

WNF-P24

Other Names

Water Glass Powder, Soluble Glass Powder, Sodium Metasilicate Powder, Silicic Acid Sodium Salt Powder

Molecular Formula

Na2O·nSiO2·mH2O

CAS No.

1344-09-8

EINECS No.

215-687-4

Grade Standard

Industry Grade

Place of Origin

HEBEI,China

Product Details

What is Sodium Silicate Powder (Dry Sodium Silicate Powder / Powder Water Glass) Modulus 2.4-2.5?

 

Sodium silicate powder, also called dry sodium silicate powder or powder water glass, is a solid powdery inorganic silicate raw material extensively adopted across global chemical and heavy industrial sectors.
 
Sanlee Chemical acts as a professional sodium silicate powder manufacturer and trusted sodium silicate powder supplier, supplying high-purity dry sodium silicate powder with steady chemical indicators. Our core modulus 2.4-2.5 sodium silicate powder can be tailored to bespoke standards, perfectly matching varied mass production demands from factories worldwide for clients who want to buy sodium silicate powder with reliable quality control.
 
This powder water glass is manufactured via high-temperature fusion, dehydration, grinding and multi-stage impurity filtration procedures. It boasts uniform fine particle size, ultra-low heavy metal and insoluble impurity content, fast water dissolving speed and long-term stable chemical activity, making it a premium foundational raw material for hundreds of industrial production workflows.

 

Introduction to Sodium Silicate Powder

 

Popularly named powder water glass or dry sodium silicate powder, sodium silicate powder is solid granular/powdery water glass formed by dehydrating liquid sodium silicate and deep crushing treatment.
 
Under standard room temperature and atmospheric pressure, it presents as white or off-white free-flowing fine powder, featuring powerful adhesive strength, rapid hardening capacity, outstanding acid resistance and corrosion resistance, as well as convenient transportation and storage compared to liquid water glass without liquid leakage risks.
 
Our flagship modulus 2.4-2.5 sodium silicate powder maintains a balanced molar ratio of silica to sodium oxide, moderate dissolving rate and outstanding chemical reactivity. It covers nearly all mainstream industrial usage scenarios and has earned consistent positive feedback from global manufacturers thanks to stable batch quality, high cost efficiency and flexible packaging options for those who buy sodium silicate powder in bulk.

 

CAS Number

 

CAS No.: 1344-09-8

 

Chemical Formula

 

General chemical formula: Na₂O·nSiO₂; Our modulus 2.4-2.5 dry sodium silicate powder adopts an accurately calibrated molar ratio of silicon dioxide and sodium oxide. The molecular structure remains uniform across every production batch, eliminating fluctuations in product performance for downstream processing.

Product Display

Dry sodium silicate powder white free-flowing fine powder in glass beaker showing uniform texture for industrial and laboratory use
Sodium silicate powder packaging with 25kg kraft paper bags showing palletized stacks and product label details
Sodium silicate powder with pallet showing 28 bags per pallet stacked and wrapped ready for shipping

Technical Specifications

ItemsUnitProduct parameters
Apperance/White fine powder, free-flowing, no visible impurities
Modulus(n)/2.4-2.5
Total Content (Na₂O + SiO₂)%78-82
SiO₂%55-57
Na₂O%23-25
pH Value (1% Aqueous Solution, 25℃)/11-13
Bulk Densityg/l0.5-0.8
Whiteness/>88

Stable Modulus & High Purity

Our dry sodium silicate powder features a stable 2.4-2.5 modulus with low impurity content. Consistent molecular structure ensures reliable and uniform performance for all industrial applications.

Fast Solubility & Excellent Activity

This powder water glass dissolves quickly in water without residue. It maintains high chemical reactivity, greatly improving production efficiency for downstream processing.

Convenient Storage & Transportation

As a dry powdery product, it avoids liquid leakage risks. Moisture-proof kraft paper bag packaging enables easy stacking, long-term storage and low-cost global shipping.

Wide Applicability & Customizable Service

Suitable for construction, foundry, chemical, environmental protection and other industries. As a professional sodium silicate powder supplier, we provide tailored solutions for clients who buy sodium silicate powder in bulk.

Sodium Silicate Powder 2.4-2.5 Modulus Application

Modulus 2.4-2.5 sodium silicate powder (powder water glass) is our star solid silicate product line. Leveraging its superior binding, gelling, water-resistant and catalytic properties, it serves comprehensive application fields with detailed usage scenarios as below:

• Construction & Building Materials Industry

As a core raw material for inorganic waterproof coatings, concrete rapid setting admixtures, fire retardant mortar binders and ground curing agents. When mixed with cement and aggregate, dry sodium silicate powder significantly boosts structural hardness, impermeability and fire resistance of concrete floors, tunnels, underground garages and exterior wall fireproof layers. It is also widely used for making inorganic heat preservation panels, anti-crack putty and road dust suppression stabilizers for construction sites.

• Daily Chemical & Detergent Industry

A key functional builder for industrial laundry detergents, dishwashing powders, metal cleaning agents and textile scouring powders. Sodium silicate powder softens hard water by chelating calcium and magnesium ions, enhances dirt emulsification and suspension capacity, protects metal equipment from corrosion during washing, and stabilizes surfactant formulas for long-lasting cleaning efficiency, a must-have additive for detergent factories looking to buy sodium silicate powder in large tonnage.

• Fine Chemical Manufacturing Industry

Fundamental raw material for producing silica gel, precipitated white carbon black, zeolite molecular sieves, silica sol and inorganic adsorbents. It participates in silicate synthesis, catalyst carrier preparation and chemical wastewater flocculant production. The steady modulus 2.4-2.5 ratio of our powder water glass ensures consistent reaction yield and reduces waste material generation in fine chemical synthesis lines.

• Foundry & Refractory Materials Industry

High-performance binder for resin-free casting sand molds, investment casting shells and refractory castables. Dry sodium silicate powder dissolves quickly on-site to prepare sand-mold bonding slurry, improving sand mold strength, reducing casting sand sticking defects and lowering finished product rejection rates. In refractory production, it bonds magnesia, alumina and silica raw materials to make high-temperature resistant furnace linings, kiln bricks and thermal insulation refractory blocks for steel, glass and ceramic kilns.

• Mining, Metallurgy & Mineral Processing

Functions as ore flotation regulator, gangue depressant and metal ore dressing auxiliary agent in non-ferrous metal mining. In metallurgy workshops, sodium silicate powder forms a dense anti-oxidation protective film on molten metal surfaces to prevent oxidation burning loss. It is also applied for tailings solidification and mine slope stabilization to eliminate landslide hazards.

• Textile, Leather & Paper Manufacturing

For textile processing: fabric flame retardant finishing agent, cotton cloth desizing auxiliary and yarn sizing agent, improving fabric stiffness, wrinkle resistance and fireproof performance. For leather production: tanning auxiliary to neutralize acid and enhance leather surface smoothness. For paper mills: paper pulp waterproof and anti-corrosion treatment agent, strengthening paper dimensional stability and preventing mold growth during long-term storage.

• Ceramic, Glaze & Abrasive Industry

Used as a flux and binder for ceramic body raw materials, ceramic glazes and abrasive grinding wheels. Modulus 2.4-2.5 sodium silicate powder promotes uniform melting of glaze materials during high-temperature firing, avoids glaze pinholes and cracking, and strengthens the bonding force between abrasive grains and substrate for grinding discs, sandpapers and polishing wheels.

• Environmental Protection & Water Treatment Industry

Applied in industrial wastewater heavy metal ion removal, river sediment solidification, landfill anti-seepage layer preparation and industrial dust suppression. Dry sodium silicate powder reacts with heavy metal pollutants to form insoluble silicate precipitates for easy separation; its non-toxic, inorganic composition meets strict global environmental protection standards without secondary pollution risks.

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Packaging and Storage

Packaging

Our sodium silicate powder / dry powder water glass adopts standard industrial packaging with premium kraft paper bags, including 25kg kraft paper bag packaging specifications, and supports customized packaging and labeling according to customer requirements. All kraft paper bag packages are tightly sealed, moisture-proof and dust-proof, which can effectively prevent powder leakage, moisture caking and product contamination during transportation and storage. As a reliable professional sodium silicate powder supplier, we provide flexible packaging solutions and bulk shipping services for global customers who buy sodium silicate powder.

Storage

Our sodium silicate powder / dry powder water glass should be stored in a cool, dry, and well‑ventilated warehouse environment. Keep the product away from direct sunlight, high temperature, and humid conditions to prevent moisture absorption, caking, and deterioration of chemical performance. The kraft paper bag packaging must be kept tightly sealed during storage and handling. Avoid contact with water, moisture, acid substances, and strong oxidizing agents to maintain stable powder fluidity and original modulus properties. Stacking height should be controlled reasonably to prevent package damage and powder leakage. As a professional sodium silicate powder supplier, we recommend standardized dry storage and regular stock inspection to ensure long-term product quality for customers who buy sodium silicate powder in bulk.

Frequently Asked Questions

Is your sodium silicate powder easy to dissolve in water?

Yes. Our dry sodium silicate powder features fast water solubility with no insoluble residues. It can be quickly prepared into uniform liquid water glass on-site, saving production time and improving working efficiency.

What is your packaging method for sodium silicate powder?

We adopt standard moisture-proof kraft paper bag packaging, including 25kg bags. All packages are well-sealed, dust-proof and moisture-proof. Custom packaging and private labeling are available for global customers who buy sodium silicate powder in bulk.

What are the main applications of this powder water glass?

This sodium silicate powder is extensively used in construction waterproofing, detergent manufacturing, foundry binding, refractory materials, wastewater treatment, and paper & textile finishing. It is a versatile industrial raw material for multiple production processes.

How to store sodium silicate powder properly?

Please store the powder water glass in a cool, dry and ventilated warehouse. Keep bags tightly sealed and away from humidity, high temperature and acid materials to avoid caking and maintain stable product performance.

Why choose your company as the sodium silicate powder supplier?

As a professional sodium silicate powder supplier, we provide stable modulus 2.4-2.5 products with high purity and consistent batch quality. We support customized specifications, flexible packaging and cost-effective bulk shipping for global industrial buyers.

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