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SanLee-China Sodium Silicate Factory

Potassium Silicate Powder Modulus 2.4-2.5

Modulus 2.3-2.5 Potassium Silicate Powder is high-purity instant-dissolving potassium silicate powder with optimized SiO₂-K₂O ratio. It dissolves rapidly in cold water, maintains steady alkalinity, contains minimal impurities and mixes well with various inorganic additives & surfactants. Widely applied in agricultural silicate fertilizer, welding rods, refractory adhesives, fireproof coatings and specialty fine chemicals.

Model Numbe

WNF-KP25

Other Names

Potash Water Glass Powder, Soluble Potassium Silicate Powder, Potassium Metasilicate Powder

Molecular Formula

K₂O·nSiO₂

CAS No.

1312-76-1

EINECS No.

215-199-1

Grade Standard

Industry Grade

Place of Origin

HEBEI,China

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Product Details

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

Potassium silicate powder, also called dry potassium silicate powder or powder water glass, is a solid powdery inorganic silicate raw material widely utilized in global fine chemical, agricultural, refractory and industrial manufacturing fields. As a high-performance industrial potassium silicate powder, it features stable chemical properties and versatile functional characteristics, becoming an essential foundational material in multiple industrial scenarios.

Sanlee Chemical is a professional potassium silicate powder manufacturer and reliable potassium silicate powder supplier, specializing in the production and supply of high-purity dry potassium silicate powder with stable and standardized chemical indicators.

Our core modulus 2.4-2.5 potassium silicate powder can support customized specifications to meet diverse large-scale production needs of global manufacturers. We provide high-quality potassium silicate in powder form with strict quality control, serving bulk purchasers and industrial processing clients worldwide.

This powder water glass is produced through rigorous processes including high-temperature fusion, precise dehydration, fine grinding and multi-stage impurity filtration. With uniform ultrafine particle size, ultra-low heavy metal and insoluble impurity content, fast water solubility and long-term stable chemical activity, our industrial potassium silicate stands out as a premium raw material for countless industrial production processes.

Introduction to Potassium Silicate Powder

Potassium silicate powder is a free-flowing solid powdery water glass processed by deep dehydration and ultrafine crushing of liquid potassium silicate. This mature potassium silicate in powder form effectively solves the leakage, transportation and storage pain points of liquid water glass, with higher convenience for long-distance transportation and long-term warehouse storage.

Under standard room temperature and atmospheric pressure, it appears as white or off-white fine free-flowing powder, possessing excellent adhesive strength, rapid hardening performance, superior acid resistance, corrosion resistance and high-temperature stability.

Our flagship modulus 2.4-2.5 industrial potassium silicate features a balanced silica-potassium oxide molar ratio, moderate dissolution rate and excellent chemical reactivity. With stable batch quality, high cost performance and flexible packaging solutions, it covers almost all mainstream application scenarios and has won consistent praise from global clients, making us a trustworthy potassium silicate powder manufacturer and supplier for bulk procurement.

CAS Number

CAS No.: 1312-76-1

Chemical Formula

General chemical formula: K₂O·nSiO₂; Our modulus 2.4-2.5 dry potassium silicate powder adopts a precisely calibrated molar ratio of silicon dioxide and potassium oxide. Every production batch maintains uniform molecular structure and stable chemical indicators, completely avoiding product performance fluctuations that affect downstream industrial production.

Product Display

$Industrial potassium silicate powder white free-flowing powder in glass beaker with CAS 1312-76-1 for electrode refractory and detergent applications$

Technical Specifications

Items	Unit	Product parameters
Apperance	/	White free-flowing fine powder, free of visible impurities and caking
Modulus(n)	/	2.4-2.5
Total Content (K₂O + SiO₂)	%	79-89
SiO₂	%	48-54
K₂O	%	31-35
pH Value (1% Aqueous Solution, 25℃)	/	11-13
Bulk Density	g/l	0.5-0.8
Dissolution Speed	s	≤100

Key Features

Stable 2.4-2.5 Balanced Modulus & Consistent Batch Performance

As a professional potassium silicate powder manufacturer, we strictly calibrate the silica-potassium oxide ratio to maintain a steady modulus of 2.4-2.5 for every batch of our industrial potassium silicate powder.

High Purity & Ultra-Low Impurity, Premium Industrial Grade

Our potassium silicate powder adopts high-temperature fusion and multi-stage precision impurity filtration technology, featuring ultra-low heavy metal content, minimal insoluble residues and high effective active ingredient content.

Fast Cold-Water Solubility & Excellent Formula Compatibility

This industrial potassium silicate powder is processed by ultrafine grinding technology with uniform and loose particle size. It can dissolve rapidly and completely in normal-temperature cold water without heating or high-speed stirring

Powder Form Convenience & High Cost-Efficiency

Different from liquid potassium silicate with high water content and high transportation costs, our potassium silicate in powder form has high active substance concentration, no liquid leakage risk and lower transportation and storage costs.

Potassium Silicate Powder 2.4-2.5 Modulus Application

Modulus 2.4-2.5 potassium silicate powder is our star inorganic silicate product. Relying on its outstanding bonding, gelling, fire-resistant, water-proof and catalytic properties, it covers comprehensive application fields, with detailed usage scenarios as follows:

• Construction & Building Materials Industry

It serves as a core raw material for inorganic fireproof coatings, waterproof mortars, concrete curing agents and building fire retardant binders.

When applied in construction engineering, potassium silicate in powder form can significantly enhance the hardness, impermeability, fire resistance and corrosion resistance of concrete structures, tunnel projects, underground buildings and exterior wall fireproof layers.

It is also widely used in the production of inorganic thermal insulation panels, anti-crack building putty and construction site dust suppression stabilizers, providing reliable material support for high-performance building engineering.

• Agricultural Silicon-Potassium Fertilizer Industry

As a high-quality silicon and potassium source raw material, our modulus 2.4-2.5 potassium silicate is widely used for producing water-soluble silicon-potassium fertilizers and foliar fertilizers.

It can effectively supplement soil silicon and potassium elements, improve soil hardening, enhance crop stress resistance, disease resistance and lodging resistance, and promote crop photosynthesis and growth.

We provide stable-quality industrial potassium silicate powder specially optimized for agricultural fertilizer processing, suitable for large-scale fertilizer production and formulation preparation.

• Fine Chemical Manufacturing Industry

It is an indispensable basic raw material for the synthesis of silica sol, precipitated silica, zeolite molecular sieves, inorganic adsorbents and chemical additives. This potassium silicate in powder form participates in silicate synthesis reaction, catalyst carrier preparation and industrial flocculant production. The stable 2.4-2.5 modulus ratio ensures consistent reaction activity and stable product yield in fine chemical production, effectively reducing production waste and improving production efficiency for downstream manufacturers.

• Welding & Refractory Materials Industry

Our industrial potassium silicate powder is a high-efficiency binder for welding electrode coatings, refractory castables and high-temperature resistant kiln materials.

It has strong bonding strength and high-temperature stability, which can effectively improve the compactness and high-temperature resistance of refractory products, and enhance the bonding firmness of welding electrode coatings.

Widely used in the production of high-temperature furnace linings, kiln bricks, thermal insulation refractory blocks and various welding auxiliary materials for steel, metallurgy and ceramic kilns.

• Environmental Protection & Water Treatment Industry

Potassium silicate is commonly used for industrial wastewater heavy metal removal, river sediment solidification, landfill anti-seepage treatment and industrial dust suppression.

It can react with heavy metal pollutants in water bodies to form stable insoluble silicate precipitates, realizing efficient sewage purification.

As a non-toxic and pollution-free inorganic material, our high-purity potassium silicate powder fully meets global environmental protection standards with no secondary pollution.

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Packaging and Storage

Packaging

Our potassium 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 potassium 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 potassium silicate powder soluble in cold water?

Yes. Our dry potassium silicate adopts ultrafine grinding technology with uniform loose particle size. It can dissolve rapidly and completely in normal-temperature cold water without heating or high-speed stirring, effectively saving production energy consumption and improving batching efficiency for industrial production.

What industries is modulus 2.4-2.5 potassium silicate powder suitable for?

It covers multiple mainstream industries, including agricultural silicon-potassium fertilizer production, construction building materials, welding and refractory materials, fine chemical manufacturing, environmental protection water treatment, textile leather papermaking, as well as ceramic and abrasive processing, serving diverse industrial production demands.

What is the appearance of your industrial potassium silicate powder?

Under standard room temperature and atmospheric pressure, our potassium silicate presents white or off-white fine free-flowing powder, with uniform particle size, no agglomeration, clean texture and ultra-low insoluble impurities, meeting high-grade industrial production standards.

Can you provide customized specifications for potassium silicate powder?

Yes. As a professional potassium silicate supplier and manufacturer, we support customized indicators and packaging for modulus 2.4-2.5 potassium silicate according to clients’ downstream production requirements, to perfectly match personalized mass production demands.

How is your potassium silicate powder different from liquid potassium silicate?

Compared with liquid potassium silicate, our potassium silicate in powder form has higher active ingredient concentration, no liquid leakage risk, lower transportation and storage costs, and longer storage life. It is more suitable for long-distance transportation, long-term sealed storage and automated factory batching.

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