Trial design and interpretation

“Flake” describes physical form. Confirm whether the CaCl₂ assay is on an as-received or dry basis. If dosing is budgeted on active salt, use the measured fraction to calculate the shipment mass and record when the material is weighed relative to moisture exposure.

Recording Calcium chloride assay

Calcium chloride assay (Mass fraction): OxyChem DOWFLAKE Xtra flakes, third-party example: 83–87%. The range applies only to the cited third-party grade. Agree separate limits for the proposed supply. Water-insoluble matter: use the agreed method. Test at equal concentration and record the filter medium and blank.

Can calcium chloride flakes be priced on a dihydrate basis by default?

Flakes describe shape. Request CaCl₂ mass fraction and moisture on the COA before comparing active cost. Industrial brine preparation: Compare final brine concentration and filter residue at equal active CaCl₂. Record whether the weighed sample was hydrated.

What to record

  • Physical form and hydrate identity
  • Assay basis
  • Sampling time
  • Equivalent net weight

Technical references

Products and processes

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