~ The acetin method of Benedikt and Canton depends upon the conversion of glycerine into triacetin, and the saponification of the latter, and reduces the estimation of glycerine to an acidmetric method.    From Wordnik.com.  [Nitro-Explosives: A Practical Treatise] Reference

Hence, the acetin formed from the glycerol present in 1.4367 grammes of the crude glycerine required 35.75 c.c. N/1 caustic alkali for its saponification, so that the percentage of glycerol may be calculated from the following formula.    From Wordnik.com.  [The Handbook of Soap Manufacture] Reference

From 1 to 1.5 grammes of the glycerine is weighed into a conical flask of about 150 c.c. capacity, 7 or 8 c.c. of acetic anhydride added, together with about 3 grammes of anhydrous sodium acetate, and the whole boiled on a sand-bath under a reflux condenser for one to one and a half hours, after which it is allowed to cool, 50 c.c. water added, and the ester dissolved by shaking, and gently warming, the reflux condenser still being attached as the acetin is very volatile.    From Wordnik.com.  [The Handbook of Soap Manufacture] Reference

Flask containing acetin "75.3 c.c." ".    From Wordnik.com.  [The Handbook of Soap Manufacture] Reference

Glycerol determination, acetin method, 136.    From Wordnik.com.  [The Handbook of Soap Manufacture] Reference