Calcium Carbonate Powder, 40nm Designation, Whiteness 98%, for PVC Pipe and Profile 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 powderApplicationPVC Pipe and Profile
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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
The actual 40nm option identifies this industrial calcium carbonate for PVC pipe and profile assessment. It is described as white powder with stated purity of 95%-99% and a whiteness designation of 98%, with the relevant measurement methods still to be confirmed.
Give the nanometre dimension a measurement definition
Ask what dimension the 40nm value represents and request its test method and distribution information. Do not assume it is a particular percentile or the dispersed size within PVC. Keep the sample identifier and measurement basis together when comparing candidate powders.
Read whiteness separately from chemical purity
The 98% designation concerns whiteness, while the 95%-99% range is the stated purity. Request the optical method and current assay as separate reports. Neither result establishes the colour or mechanical response of a finished pipe or profile.
- Powder specification
- Confirm particle characterization, surface-treatment status and relevant material limits.
- PVC specification
- Define the formulation, process and finished-article acceptance requirements.
Assess any reinforcement claim in the actual compound
Review matched technical and safety documentation before evaluating a representative sample. Agree the test conditions and judge the required properties within the intended resin system rather than inferring them from a filler designation. No reinforcing effect or universal loading ratio is established here. Retain the powder identity, particle and optical methods, and compound results together so repeat enquiries refer to the material and PVC formulation actually examined.
