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whatman 醋酸铅测试纸Reel, lead acetate, 7 mm × 5 m, pH indicators and test papers, specialized test papers, dispenserReel, lead acetate, dispenser.
GE Healthcare offers a range of pH indicator and test papers to meet specific needs. These high-quality products combine ease-of-use with unsurpassed accuracy and consistency. The convenience of using indicator papers for the rapid determination of pH values has led to many applications in laboratories and in industry. Lead Acetate Test PaperUsed for detecting hydrogen sulfide, this rapid qualitative test paper when wetted with distilled water can detect as little as 5 ppm of H2S in the atmosphere or in a gas stream. Hydrogen peroxide can be detected with this paper by preblackening the paper in H2S. Concentrations as low as 4 ppm can be detected. |
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