ProductChromium Cermat Etchant TFE
ManufacturerTransene Company, Inc.
Composition20% potassium hexacyanoferrate, 10% sodium hydroxide, 70% water; liquid
Synonymschrome etch
Typical UsesWet-etching of chromium thin films

2 1 0 Corrosive Less serious health effects

Corrosive to metals Category 1 , Skin corrosion/irritation Category 2 , Serious eye damage/eye irritation Category 2A , Acute toxicity Category 4 (oral)


Cabinet 4 (bases/corrosives cabinet in Wet Aisle 2), for both stock bottle and working volumes.


Collect waste in a bottle labelled "Chromium Cermat Etchant waste", and immediately put in chemical pass-through for disposal.  Do not store waste bottle in any cabinet.

N.B. Do not pour into waste bottle for standard chrome etch (incompatibility with acids).

CommentsTo be used in Wet Process - Metal Etch - Wet Deck 1A/1B.  Collect for reuse or dispose of as hazardous waste as described above.


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Please contact a nanoFAB staff member for uses not listed above.