Butyl 4-Hydroxy Benzoate

C11H14O3  

194.23

94-26-8

25 kg, 20 kg ( 4 x 5 kg)

5 years

Preserve in well-closed containers.

Small, colourless crystals or white powder.

A. Infrared Absorption <197M>  

Between 68°Cand 72°C

 Acidity

Dissolve 1.0 g in sufficient ethanol (96%) to produce 10 ml.  To 2 ml of the solution add 3 ml of ethanol (96%), 5 ml of carbon dioxide-free water and 0.1 ml of Bromocresol green solution .Not more than 0.1 ml of 0.1 N sodium hydroxide VS is required to change the colour of the solution to blue.

Not more than 0.5 %.

Not more than 0.05 %.

Method IV <467>: meets the requirements.

99.0 % - 100.5 %