Shandong Peak-tech New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of sodium stabilized 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 sodium stabilized colloidal silica for sale here from our factory.
Sodium Stabilized Colloidal Silica Grade Comparison
| Model | Na₂O Content | SiO₂ Content | Particle Size | pH | Shelf Life |
|---|---|---|---|---|---|
| LA3010A | ≤0.01% | 30±1% | 10–20 nm | 8–10 | ≥12 months |
| LA3010B | ≤0.05% | 30±1% | 10–20 nm | 8–10 | ≥12 months |
| LA3010C | ≤0.1% | 30±1% | 10–20 nm | 8–10 | ≥12 months |
These published sodium-controlled grades share their core physical parameters and differ in Na₂O limit. Confirm whether Na₂O is reported on the supplied-product or dry-silica basis and agree the analytical method before ordering.
Control Sodium While Maintaining Alkaline Stability
Electrostatic Stabilization
Sodium-associated alkaline conditions help maintain particle charge and dispersion stability within the approved formulation window.
Tightest Published Limit
LA3010A provides the lowest published sodium limit while retaining 30±1% SiO₂ and 10–20 nm particles.
Intermediate Control
LA3010B provides a middle sodium specification for requirements between the A and C grades.
Standard Controlled Level
LA3010C provides the broadest of the three published Na₂O limits with the same core physical specification.
Information Needed for Sodium-Stabilized Grade Selection
Define the sodium basis and surrounding ionic conditions, not only the nominal Na₂O percentage.
- Na₂O limit: specify ≤0.01%, ≤0.05% or ≤0.1% and the reporting basis.
- Test method: identify digestion, instrumental method, detection limit and certificate format.
- Core parameters: confirm 30±1% SiO₂, 10–20 nm particles and pH 8–10.
- Ionic compatibility: list acids, multivalent salts, surfactants and other destabilizing components.
- Process conditions: provide dilution water, mixing order, temperature and expected hold time.
- Order details: include trial quantity, annual demand, packaging and destination country.
Request a Sodium-Stabilized Sample and Quote
Send the Na₂O limit and reporting basis, analytical method, process conditions, 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.
Sodium Stabilized Colloidal Silica Purchasing Questions
What is sodium stabilized colloidal silica?
It is an alkaline aqueous silica dispersion in which sodium-associated counter-ions form part of the stabilization chemistry.
Which sodium-controlled grades are published?
LA3010A, LA3010B and LA3010C have published Na₂O limits of ≤0.01%, ≤0.05% and ≤0.1% respectively.
Why must the Na₂O reporting basis be confirmed?
A result reported on supplied product can differ from one normalized to dry silica, so the basis and method must be agreed.
Can acids or salts destabilize the dispersion?
They may affect particle charge and stability. Validate addition order, concentration, mixing and hold time in the full formulation.
How should sodium stabilized 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 Sodium Stabilized Colloidal Silica
Suitability depends on the permitted sodium level, surrounding ionic chemistry and actual process conditions. Validate the selected LA grade in the complete formulation.
Alkaline Coating Formulations
Evaluated where sodium-stabilized nanosilica is compatible with the binder and additive package.
Precision Polishing Systems
Sodium-controlled grades can be tested where particle size and alkali level form part of the specification.
Catalyst Carrier Preparation
Can be assessed as a silica source or binder after the acceptable sodium contribution is defined.
Paper Surface Treatments
Selected grades may be evaluated in compatible alkaline paper coating and treatment formulations.
Ceramic Binder Systems
Used in compatible inorganic formulations where sodium content and alkaline stability are controlled.
Custom Sodium-Controlled Formulations
Supports projects requiring an agreed Na₂O limit, analytical basis and ionic compatibility profile.
