Chromium silicofluoride

Chromium Silicofluoride, Cr2Fg.(SiF4)3, is obtained in solution when chromium sesquioxide is dissolved in hydrofluosilicic acid. It has not yet been isolated, since in aqueous solution it undergoes decomposition the violet solution spontaneously and gradually becomes bluish green, and silicon tetrafluoride is liberated, thus ... 

The freshly prepared violet solution of chromium silicofluoride reacts with potassium chloride, thus ... 

Using pulse plating techniques with a duty cycle of 50%, it is also possible to produce crack-free chromium deposits from a sulphate- or silicofluoride-catalysed solution with a hardness similar to deposits obtained by direct currenf . A high frequency (2 000-3 000 Hz) is required to give the hardest deposits at a current density of 40 A/dm and a temperature of 54°C. It is important to avoid conditions that will co-deposit hydrides. 

Sulfur chloride Zinc neodecanoate wood preservative y-Ureidopropyltrimethoxysilane wood preservative, anthracene Anthracene wood pulp digestion Sodium bisulfite wood treatment 2,3,6-Trimethylphenol wood/paper industry PEG-8 isolauryl thioether wool treatment Magnesium silicofluoride woolen printing, hydrates Chromium fluoride (ic) working fluid, heat pumps... 

---