We provide chrome alum, which is a variety of alum that occurs in nature as a mineral mendozite. It is known from:
* Chemical Formula: CrK(SO4)2.12H2O
* Minimnum Wt.: 499.40
Technical Grade:
* Appearance: Dark Violet
* Fine crystals: Assay 98%
* Insolubles: 0.1 % max.
* Chloride(Cl): 0.025 % max.
* Aluminum(Al): 0.3 % max.
* Iron(Fe): 0.05 % max.
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