Shandong Peak-tech New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of alkaline colloidal silica in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to buy durable alkaline colloidal silica for sale here from our factory.
Alkaline Colloidal Silica Grade Comparison
| Model | Stabilization Direction | SiO₂ Content | Particle Size | Published Alkali Limit | pH | Shelf Life |
|---|---|---|---|---|---|---|
| P3010 | Potassium | 30±1% | 10–20 nm | K₂O ≤0.3% | 9–10 | ≥12 months |
| LA3010A | Low sodium | 30±1% | 10–20 nm | Na₂O ≤0.01% | 8–10 | ≥12 months |
| LA3010B | Low sodium | 30±1% | 10–20 nm | Na₂O ≤0.05% | 8–10 | ≥12 months |
| LA3010C | Low sodium | 30±1% | 10–20 nm | Na₂O ≤0.1% | 8–10 | ≥12 months |
| AM3010 | Ammonium | 30±1% | 10–15 nm | Na₂O ≤0.1% | 8–10 | ≥12 months |
| AM4010 | Ammonium | 40±1% | 10–15 nm | Na₂O ≤0.1% | 8–10 | ≥12 months |
| AM4020 | Ammonium | 40±1% | 20–30 nm | Na₂O ≤0.1% | 8–10 | ≥12 months |
These representative published grades use different stabilizing directions and alkali limits. Confirm the counter-ion, analytical basis and complete specification before selecting an equivalent alkaline grade.
Choose the Alkaline Chemistry First
K₂O-Controlled Direction
P3010 provides a published potassium-stabilized option with 30±1% SiO₂ and pH 9–10.
Three Na₂O Limits
LA3010A, B and C share core physical parameters while offering Na₂O limits of 0.01%, 0.05% and 0.1%.
Multiple Concentrations and Sizes
AM grades provide 30% or 40% SiO₂ options with 10–15 nm or 20–30 nm particle ranges.
Confirm Counter-Ion Compatibility
The stabilizer, pH, ionic strength and impurity profile must be compatible with the complete formulation.
Information Needed for Alkaline Grade Selection
Provide the counter-ion requirement and all related physical, chemical and quality limits.
- Stabilizer direction: specify sodium, low-sodium, potassium, ammonium or another alkaline system.
- Alkali limit: state the permitted Na₂O, K₂O or other counter-ion concentration and test basis.
- Core parameters: provide SiO₂ content, particle size, pH, density and viscosity targets.
- Compatibility: list acids, salts, binders, pigments, surfactants and other formulation components.
- Quality requirements: include analytical methods, certificate requirements and acceptance limits.
- Order details: provide trial quantity, annual demand, packaging and destination country.
Request an Alkaline Grade Sample and Quote
Send the stabilizer direction, alkali limit, target parameters, trial quantity and annual demand.
Request a Grade RecommendationProtect Product Stability During Storage
Packaging Options
Available polyethylene packaging sizes are 25 kg, 250 kg and 1000 kg.
Storage Temperature
Store at 0–40°C and protect from freezing. Temperatures below 0°C can cause irreversible gelation.
Direct Sunlight
Avoid prolonged exposure to direct sunlight during storage and transportation.
Container Closure
Keep containers closed to limit water evaporation and precipitation of solid silica particles.
Alkaline Colloidal Silica Purchasing Questions
What makes colloidal silica alkaline?
The dispersion is stabilized in an alkaline pH range using an appropriate counter-ion system.
Which alkaline stabilization directions are available?
Published product families include potassium, low-sodium and ammonium-stabilized grades.
Are alkaline grades interchangeable?
No. Counter-ion chemistry, alkali content, pH, concentration and particle size can affect compatibility and performance.
Which pH ranges are published for the listed grades?
The representative listed grades have published pH ranges of 8–10 or 9–10.
How should alkaline colloidal silica be stored?
Store it at 0–40°C, prevent freezing and direct sunlight, and keep the container closed.
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Applications of Alkaline Colloidal Silica
The correct alkaline grade depends on counter-ion chemistry, alkali limit, pH, particle size and formulation compatibility.
Alkaline Coating Systems
Evaluated in compatible water-based coatings where an alkaline silica dispersion is required.
Inorganic Binder Formulations
Selected grades can be assessed as nanosilica binders in compatible mineral and ceramic systems.
Paper Surface Treatment
Low-sodium or alternative-stabilized grades may be evaluated in compatible paper formulations.
Textile Processing
Alkaline grades can be tested with compatible sizing polymers, starches and textile auxiliaries.
Catalyst Carrier Preparation
Controlled-alkali grades may serve as silica sources or binders where impurity limits are defined.
Custom Alkaline Formulations
Supports projects requiring a specified counter-ion, pH, particle size and silica concentration.
