Plan a trial for your application
Cotton bleaching auxiliaries
At actual water hardness, record whiteness, handle and deposits.
Ingredients for alkaline processes
On an active-solids basis, check liquid metering, dissolution and cleaning residue.
Purchase specifications and incoming inspection
Use these properties to compare grades within the product family. Example figures refer to the cited grade or source. Confirm the offered specification, packaging and lead time in the quotation. Tokuyama · Sodium silicate composition and commercial forms ↗
| Property | Unit | Published or agreed specification | Test conditions and checks |
|---|---|---|---|
| Silica-to-soda ratio | SiO₂/Na₂O molar ratio | Agree for the grade and end use | State whether the ratio is molar and report the contents of both components. |
| Solids | % by mass | Agree for the grade and end use | Specify the drying or chemical analysis method. |
| Liquid density | g/cm³ | Agree for the grade and end use | State the temperature. For solids, check dissolution conditions separately. |
When approving a sample, record the grade, methods, limits and specification revision. On receipt, match the packing lot number to the lot-specific COA and record the measured values and release decision.
From samples to commercial delivery
Packaging and receiving
Distinguish solid lumps, powder and solution. Specify net weight, silicate modulus and container material.
Storage and handling
Store sealed. For liquids agree the pumping temperature range and discharge outlet. Record sample condition before retesting.
Sample and order lead times
State the concentration or hydrate, initial net quantity, destination and unloading method. Confirm minimum order, pallet or truckload quantity, dispatch point and arrival date separately.
Questions from the plant
Why do silicates with the same modulus differ in viscosity?
Check solids, temperature and storage time before comparing rheology.
Why does a deposit form on cloth or equipment?
Check hardness ions, concentration and rinsing. Include a silicate-free blank.
Report a delivery or batch issue
Include the order number, lot number from the package, label photos and inspection records for the affected lot. When retesting, check Silica-to-soda ratio, Solids, Liquid density.
Request documents for your application
TDS · Technical data sheet
For grade selection and sample approval, specify the grade and revision required.
SDS · Safety data sheet
Specify the country or region of use and the required language.
COA · Certificate of analysis
Request a sample COA during supplier review. For incoming inspection, provide the actual lot number.