Surkh Phitkari is sold here as reddish crystalline alum in raw and powdered forms. The catalogue states that its exact chemistry, source, grade and colour-bearing constituents are not independently verified. Red colour should therefore be treated as a description, not a purity certificate.
A market name is not a chemical specification
ECHA maintains a substance record for aluminium potassium sulfate, one named alum substance. That reference illustrates the precision of a chemical identity; it does not prove this red material has that composition. Ask for the actual chemical name, grade and available analysis for the supplied lot.
Crystals and powder need the same clarity
Grinding changes size, not documentation. A finer powder does not establish suitability for food, skin, medicines or drinking-water treatment. Do not use an unverified material for those applications or infer that a stronger colour means stronger performance.
Plan an appropriate technical application
For a suitable mineral display, craft or professionally specified technical project, describe the intended use and assess a sample against the required specification. Keep material labelled and separate from food. Avoid dust and eye contact, use suitable protection when handling powder, and keep it away from children and pets. This article supplies no ingestion, skin-treatment or water-purification recipe.
Educational information only; this article does not provide a diagnosis or an individual treatment plan.
Sources and further reading
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