16. _Märcker_:
35 grams copper sulfate, solution made up to one liter: 175
grams potassium-sodium tartrate; 125 grams potassium hydroxid,
equivalent to 89.2 grams sodium hydroxid, solution made up to one
liter.
Principles and practice of agricultural analysis. Volume 3 (of 3), Agricultural products · 第 45 / 164 题