Measuring the Color

of Calcium Carbonate

Cut Scrap Rates. Protect Your Reputation. Guarantee Product Purity.

Calcium carbonate is essential in plastics, paper, paints, and pharmaceuticals—but slight discoloration from iron, organics, or milling inconsistencies can lead to costly rework and rejected shipments. Manual color checks often miss subtle but critical variations.

With HunterLab ColorFlex L2, chemical manufacturers gain instant, objective, ASTM-compliant insight into color integrity, enabling fast, confident quality decisions before the product leaves the plant. Ensure product purity, reduce waste, and measure color, including CIELAB, WI E313, YI D1925, YI E313 and Delta E indices with fast, objective data.

Why measure the color of Calcium Carbonate?

  • Hidden yellowing from impurities: Just trace levels of iron or organic matter can cause off-white tones that degrade downstream product performance.
  • Non-uniform particle size: Milling variations alter reflectivity, causing inconsistent visual perception and unreliable QA results.
  • Subjective evaluations: Visual checks differ by inspector, lighting, and location, risking non-compliance or customer dissatisfaction.

Check out this solution for measuring the color of calcium carbonate

This is the color measuring instrument for calcium carbonate that our customers are having great success with:

Trusted by the World’s Leading Chemical Manufacturers

Spectrophotometric color measurement doesn’t have to be overwhelming. With the ColorFlex L2, chemical manufacturers confidently control whiteness and consistency in calcium carbonate—backed by HunterLab’s support and trusted by leading producers worldwide. From installation to ongoing optimization, we help your team stay in control and ahead of spec.

Efficiency That Drives Brand Trust With ColorFlex L2, your color quality workflow becomes a value-generating process:

  • Reduce waste and lost production hours from avoidable rework
  • Accelerate QA throughput with fast, automated batch verification
  • Enhance internal visibility and client trust with traceable, consistent color documentation

See the Difference in Your Bottom Line. Request a free color analysis or book a personalized demo today.

Contact a Color Expert

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