Diatomaceous Earth Type 545 AW CAS 68855‑54‑9 Acid Washed for Chromatography and Laboratory
Diatomaceous Earth Type 545 AW CAS 68855‑54‑9 is acid‑washed purified diatomaceous earth for laboratory applications. Strict acid leaching treatment removes most metal‑containing impurities and soluble contaminants. It retains complete diatom porous skeleton, featuring uniform pore distribution and low heavy‑metal content. Widely used as stationary‑phase support for chromatography, lab‑scale filtration medium and sample processing filler, it meets the high‑purity requirements of analytical and r
Product Overview
Diatomaceous Earth Type 545 AW CAS 68855‑54‑9 Acid Washed Grade is specially purified diatomite developed for chromatography and laboratory research. Ordinary flux‑calcined diatomite contains higher soluble metal impurities, which may interfere with chromatographic separation and experimental test results. Acid washing process greatly reduces impurity content, delivering stable inert porous substrate suitable for lab separation and filtration work.
Key Features
- CAS Number: 68855‑54‑9, Acid‑Washed Purified Diatomaceous Earth Type 545 AW
- Effective removal of metal impurities via acid leaching procedure, low soluble substances
- Intact natural diatom porous structure, uniform pore‑size distribution
- Chemically inert, less interference for chromatographic separation and sample analysis
- Controlled particle size, good permeability for lab‑scale solid‑liquid separation
- Low heavy‑metal residue, stable batch‑to‑batch quality for laboratory test repeatability
- Can be directly used or further modified as chromatographic stationary‑phase carrier
- Suitable for gravity column, vacuum filtration and other laboratory separation equipment
Main Applications
- Inert support material for laboratory column chromatography
- Filter medium for lab‑scale sample pretreatment and solution purification
- Adsorbent filler for research‑level solid‑liquid separation experiments
- Raw material for preparation of customized chromatographic stationary phase
Usage Guidance
Dry adequately before chromatographic packing to eliminate adsorbed moisture. Select appropriate particle fraction according to separation requirements. Conduct blank control experiment to confirm background interference. Wear dust mask when handling powder inside fume hood.
Storage & Package
Seal packages tightly. Store in dry, dust‑free laboratory warehouse, avoid cross‑contamination with other chemical reagents. Standard package: 25kg woven bag with PE inner liner, small lab‑sample package available. Shelf life: 24 months under dry sealed storage.
Service Support
Laboratory test samples available. COA and technical datasheet can be provided on request. Stable bulk supply capacity. Welcome to inquire factory quotation.
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