COAGULANT PRIMARY FIXATIVES 



39 



Stance do not appear (see p. 50). As a general rule it is best not to 

 mix chromium trioxide with reducers, such as ethanol or form- 

 aldehyde, with which it reacts. A few useful fixatives, however, 

 contain chromium trioxide and formaldehyde.^ '^ 



>166 



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