Skip to Content
Merck
  • [Assay of organic bases in pharmaceutical preparations using cobalt thiocyanate].

[Assay of organic bases in pharmaceutical preparations using cobalt thiocyanate].

Pharmaceutisch weekblad. Scientific edition (1983-08-26)
J Lemli, I Knockaert
ABSTRACT

A rapid and simple colorimetric method is presented for the estimation of organic bases in pharmaceutical preparations. Solid cobalt thiocyanate reagent is used. Many bases form blue coloured ion pairs soluble in dichloromethane.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Cobalt(II) thiocyanate, 99.9% trace metals basis
Sigma-Aldrich
Cobalt(II) thiocyanate, 96%