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Product Series
Pigment
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★ Application range: coloring in rubber, plastic, ink, cosmetics, printing and dyeing pulp, papermaking, and art paint industries.
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Ferrous sulfate oxidation method. Sulfuric acid reacts with iron filings to produce ferrous sulfate. Sodium hydroxide is added and air is introduced to oxidize to prepare crystal nuclei. Then, ferrous sulfate and iron filings are added to the crystal nucleus suspension, heated and blown into air to oxidize. Press filtering, rinsing, drying, and crushing to obtain iron oxide yellow.
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This product is prepared by wet method, which is made by reacting metal iron filings with mixed acid (sulfuric acid + nitric acid) and then oxidizing with air. Aliases: iron red, iron oxide, trioxane and iron pills.
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