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✔Limit Test for Heavy Metals 📖 📖
The limit test for heavy metals is designed to control all the metallic impurities present in the drug. It is based on the reaction between the solution Heavy metals and a saturated solution of Hydrogen sulphides. In acidic media, it produces reddish / black colour with Hydrogen sulphide which is compared with standard lead nitrate solution..
👉 In this video, we will learn about Limit Test for Iron its requirement, procedure, experiment, observation in just 4 min. 👈
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