Filter Papers

Made of pure cellulose treated with hydrochloric and hydrofluoric acid, filter paper is quantitative paper used for straining with fast flow rates and good retention. It creates a semi-permeable barrier perpendicular to a liquid or airflow in order to separate fine substances from liquids or air. Different grades of filter paper are available for performing routine laboratory work, ranging from coarse to fine filtration of particulates.

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분리 페이퍼, grade 511

Supplier: VWR Collection

유기 용액에서 수용액을 분리하는데 사용되는 소수성 여과지

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정량여과지

Supplier: VWR Collection

424: 황화납, 황화철, 황화은, 탄산알칼리, 크로뮴산납, 비소, 안티몬, 카드뮴 및 식품의 여과. 유제품의 모래 함량 측정. 제지 공장에서 펄프의 백색도 측정.

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정량여과지, grade 415

Supplier: VWR Collection

수산화알루미늄, 탄산코발트, 요오드화수은, 수산화마그네슘 등과 같은 거친 침전물.

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VWR® Low Nitrogen Content Filters, Grade 521

Supplier: VWR Collection

Low nitrogen content filters for determination of nitrogen content in steel and iron samples dissolved in acid. Filtration of fine precipitates to dissolve according Kjeldahl method.

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정량여과지

Supplier: VWR Collection

These highly pure filter paper grades are produced from cellulose fibers with an alpha-cellulose content of nearly 100%, in accordance with precise quality standards. The ash content is approximately 0.06%.