601 Calcium Carbonate, 120±10nm, Whiteness ≥94%, for General Silicone-Sealant Assessment
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Particle-size designationNanometre designationColorWhite
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Physical formPowder
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CAS No.471-34-1Purity95%-99%
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Appearancewhite powderApplicationGeneral Silicone Sealant Grade Calcium Carbonate
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ClassificationCarbonateEINECS No.207-439-9
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Grade StandardIndustrial GradeMolecular FormulaCaco3
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Other NamesNano-calciumTypeCalcium Carbonate
601 is the actual model for this calcium carbonate intended for general silicone-sealant assessment. The industrial white powder has stated purity of 95%-99%, with a 120±10nm designation and a whiteness designation ≥94% that each require a defined measurement basis.
Obtain two reports for the two designations
Ask what particle dimension the 120±10nm value represents and request its method and distribution information. Obtain the whiteness test basis separately, keeping the minimum sign with ≥94%. Neither measurement alone establishes the handling or cured performance of a silicone sealant.
- Particle record
- Identify the measured dimension, method and proposed sample.
- Optical record
- Identify the whiteness method and relevant sample conditions.
Describe the sealant system being assessed
Confirm the binder and intended application requirements before a representative formulation evaluation. Request treatment and moisture information for the actual 601 powder, together with matched technical and safety documents. A general sealant-grade designation does not establish universal compatibility or a prescribed addition ratio.
Evaluate uncured and cured behaviour separately
Agree the rheological criteria for the uncured material and the relevant adhesion tests after cure. No excellent thixotropy or adhesion gain is established here. Record the formulation, conditioning and methods used to judge the intended performance. Keep the tested 601 identity and powder reports with those results so subsequent enquiries refer to the material and sealant system actually evaluated, including any changed substrate or application requirement.
