Potassium silicate glass

Solid Potassium Silicate Glass (Potassium Water Glass) – Sanlee Chemical

Its appearance is mostly colorless or slightly yellowish transparent glass-like particles or blocks, with a hard texture and being difficult to break.

Model Numbe

WNF-KS01

Other Names

Potash Water Glass Solid, Soluble Potassium Silicate, Potassium Metasilicate Solid, Silicic Acid Potassium Salt Solid

Molecular Formula

K2O3Si

CAS No.

1312-76-1

EINECS No.

215-199-1

Grade Standard

Industry Grade

Place of Origin

Hebei Province, China

Product Details

What is potassium silicate glass?

 

Potassium silicate glass, commonly known as potassium water glass, is an extensively used inorganic compound. Due to its unique chemical properties and stable performance, it plays an indispensable role in various fields such as industry and agriculture. Compared with liquid potassium silicate, Potassium silicate glass is more convenient for storage, transportation, and proportioning use, with higher purity and more stable performance.

Sanlee Chemical as a professional potassium water glass supplier, we provide high-purity industrial potassium silicate with stable performance, especially the customized solid potassium silicate modulus 3.3-3.9 that meets diverse industrial production needs.

It is a core auxiliary material for many industries. This article will provide a detailed analysis of the basic properties, core characteristics, and multi-field applications of Potassium silicate glass, and helping everyone fully understand its application value, as well as the practical significance of potassium water glass in industrial and agricultural production.

 

Basic Properties and Core Characteristics of Potassium silicate glass (Potassium water glass)

 

Potassium silicate glass, as an inorganic compound, has a definite chemical composition and unique physical and chemical properties, which determine its wide range of applications. The specific details are as follows:

 

(1) Basic Physical and Chemical Properties

 

The chemical formula of Potassium silicate glass is usually written as K₂O·nSiO₂ (n is the modulus, representing the ratio of silicon dioxide to potassium oxide). Its appearance is mostly colorless or slightly yellowish transparent glass-like particles or blocks, with a hard texture and being difficult to break. Its core physical properties are outstanding. Its melting point is as high as 976℃, and it has excellent high-temperature resistance, not melting or deforming in high-temperature environments.

In terms of chemical properties, it can quickly dissolve in water, forming an alkaline solution after dissolution, which can react with acids to produce silicic acid precipitates, but it does not dissolve in organic solvents such as ethanol, and its stability is extremely strong—this is one of the most prominent chemical characteristics of potassium water glass.

 

(2) Core Feature Advantages

 

Apart from its basic properties, the core characteristics of Potassium silicate glass make it suitable for various application fields:

Firstly, it has strong adhesion, and the alkaline solution formed after dissolution has excellent adhesion ability, which can firmly bond various substances;

Secondly, it has excellent heat resistance and fire resistance, with a high melting point and non-flammability, making it suitable for high-temperature scenarios and fire prevention requirements;

Thirdly, it has good corrosion resistance, capable of resisting the erosion of various acids and alkalis, with strong stability; Fourthly, it is environmentally friendly and non-toxic, belonging to inorganic materials, without irritating odors, and relatively friendly to the environment and human body, suitable for various scenarios such as agriculture and civilian use.

 

CAS Number

CAS No.: 1312-76-1
 
 

Chemical Formula

General chemical formula: K₂O·nSiO₂; The specific formula of our solid potassium silicate modulus 3.3–3.9 is matched according to the precise molar ratio of silica and potassium oxide, with stable molecular structure and consistent product batch performance.

Product Display

Potassium silicate glass (potassium water glass)
Potassium silicate glass (potassium water glass) solid potassium silicate
Potassium silicate glass (potassium water glass) solid potassium silicate

Technical Specifications

ItemsUnitProduct parameters
Apperance/

Irregular glassy lumps, white, light grey or faint pale blue, semi-transparent, no visible contaminants

Modulus(n)/3.3-3.9
SiO₂%66-71
Na₂O%28-33
Bulk Densityg/cm³2.4-2.5

pH Value (1% Aqueous Solution, 25℃)

/11-13

Excellent Chemical Stability & Anti-Efflorescence Performance

This solid potassium silicate glass features ultra-stable inorganic chemical properties with strong resistance to acid, alkali and atmospheric corrosion. It maintains stable bonding and structural performance in harsh chemical environments, greatly extending the service life of coatings, mortars and bonded products.

Superior High-Temperature Resistance & Fireproof Insulation

As a non-combustible inorganic silicate material, it boasts outstanding thermal stability and high temperature resistance without decomposing or releasing toxic fumes under extreme heat. It is a reliable core material for industrial fireproofing and high-temperature resistant scenarios.

Controlled High-Pressure High-Temperature Solubility & Stable Processing Quality

This solid glassy potassium silicate cannot dissolve in water under normal temperature and pressure conditions, and features professional controlled solubility that only achieves complete dissolution under high temperature and high pressure environments.

Eco-Friendly & Long-Lasting Bonding Performance

Made of pure inorganic raw materials, the product is non-toxic, odorless and environmentally friendly, complying with global industrial environmental protection standards. It forms firm physical and chemical bonds with stone, metal, wood and other substrates, delivering excellent air permeability, waterproofness and wear resistance.

Solid Potassium Silicate Modulus 3.3-3.9 Application

The three core application areas of Potassium silicate glass (potassium water glass factory)

Thanks to its unique properties, Potassium silicate glass is widely used in industrial bonding, special coatings, agricultural auxiliary and other fields, becoming an indispensable auxiliary material for various industries. The specific applications are as follows:

Industrial Adhesion Field: Core Adhesives

In industrial production, Potassium silicate glass is an important inorganic adhesive. The most crucial application is in the manufacturing of welding rods. As the core bonding component of the welding rod coating, it can firmly bond various raw materials in the coating, ensuring that the welding rod does not fall off or crack during the welding process, while also enhancing the high-temperature resistance of the welding rod and guaranteeing the welding quality.

Additionally, it is widely used in the production of refractory materials and ceramics, serving as a binder that can increase the strength and durability of refractory bricks and ceramic products, thereby extending the service life of the products.

Special Coatings Field: Key Film-forming Substances

Potassium silicate glass is a key raw material in the special coatings industry, playing a central role especially in inorganic fireproof coatings and zinc-rich anti-corrosion coatings. In inorganic fireproof coatings, it serves as a film-forming substance, capable of forming a dense glass-like protective layer under high-temperature fire conditions, blocking oxygen and heat, preventing the spread of fire, and protecting the substrate from being burned.

In zinc-rich anti-corrosion coatings, it can work in synergy with zinc powder to form a solid and dense anti-corrosion layer, effectively resisting the erosion of air, moisture, acids, and alkalis, and prolonging the service life of metal components. It is widely used in the anti-corrosion of outdoor facilities such as bridges, steel structures, and pipelines.

Agricultural Auxiliary Field: High-quality Silicon Fertilizer Raw Materials

In agricultural production, Potassium silicate glass can be used as the core raw material for silicon fertilizer. After dilution treatment, it is applied to the soil to provide silicon elements for plants. Silicon is an important trace element required for plant growth, which can enhance the strength of plant cell walls, improve the disease resistance and stress tolerance (such as resistance to lodging, drought, and pests and diseases) of plants, and also improve soil structure, promote root growth of plants, increase the yield and quality of crops, especially suitable for the cultivation of crops such as rice, wheat, and vegetables—this is a green and efficient application of potassium water glass in agriculture.

 

Summary of the Applications of Potassium silicate glass

In conclusion, Potassium silicate glass (potassium hydroxide glass) is an inorganic compound with stable performance and wide applications. Due to its core characteristics of high temperature resistance, strong adhesion, environmental friendliness, and non-toxicity, it plays a significant role in industrial bonding, special coatings, and agricultural auxiliary fields.

Its fundamental properties determine its suitability for various complex scenarios. Whether it is in industrial production for bonding, anti-corrosion, and fire prevention, or in agriculture for increasing yield and improving quality, Potassium silicate glass is indispensable. Understanding its fundamental properties and application scenarios can better utilize its value and provide strong support for production in various industries.

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Packaging and Storage

Packaging

Our potassium silicate glass is packed in ton bags for convenient transportation and storage. All packaging containers are sealed and leak-proof, which can effectively avoid product leakage and pollution during transportation. As a professional sodium silicate supplier, we support flexible packaging and bulk shipping for global customers.

Storage

Store the industrial sodium silicate in a cool, dry and ventilated warehouse, keep away from high temperature, direct sunlight and freezing environment. The ambient storage temperature is controlled at 5℃-35℃. Sealed storage is required after opening to prevent water evaporation and surface crystallization. Under standard storage conditions, the product shelf life is 12 months. It is forbidden to mix with acid substances to avoid chemical reaction and product deterioration.

Frequently Asked Questions

Is solid potassium silicate glass soluble in water at room temperature?

No. Different from liquid potassium silicate and ordinary sodium silicate solids, our potassium silicate glass is insoluble in water under normal temperature and normal pressure. Complete dissolution can only be achieved under high temperature and high pressure conditions with professional processing equipment.

What are the required conditions for dissolving solid potassium silicate glass?

It needs to be dissolved under high temperature (usually 120°C–180°C) and high pressure sealed environment. After professional pressure heating treatment, it can form a uniform and stable potassium silicate aqueous solution without insoluble residues, which is suitable for standardized industrial production.

What is the biggest difference between potassium silicate glass and sodium silicate glass?

Potassium silicate glass has excellent anti-efflorescence performance. It will not produce white carbonate precipitation on the surface after long-term outdoor use, while sodium silicate is prone to efflorescence and whitening. Besides, it features better high-temperature stability and bonding durability.

Is potassium silicate glass a fireproof material?

Yes. It is a non-combustible inorganic silicate material with excellent high-temperature resistance. It will not decompose or release toxic smoke at extreme high temperatures, and can form a dense heat insulation protective layer, which significantly improves the fire resistance and heat insulation performance of finished products.

Does this product have environmental and safety risks?

No. It is made of pure inorganic raw materials, non-toxic, odorless and pollution-free. It complies with global industrial environmental protection and safety standards. No harmful substances will be released during processing and use, so it is a safe and eco-friendly industrial raw material.

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