Properties: Shiny leaflets from water, browns at 200°, begins to melt at 220°, completely melted at 245-247° (decompn). Sparingly sol in water, alcohol, acetone, ether, chloroform, ethyl acetate, benzene, glacial acetic acid. Sol in alkalies and mineral acids. Freely sol in warm 20% hydrochloric acid.
Melting point: begins to melt at 220°; completely melted at 245-247° (decompn)
Use: Photographic developer. In determination of iron; detection and determination of phosphorus and silicon. Acid indicator in bacteriology.
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