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Polysorbates

Introduction

Sorbitan esters made from various fatty acids are ethoxylated to prepare polysorbates. These Ethoxylates have a number of advantages. They are insensitive to electrolytes and pH variations and form micelles at low concentrations giving stable emulsions. They are very mild and can be used in foods also.

Specfications

Product Name
Appearance at 25 Deg C
pH (5% aq)
Hydroxyl Value mg KOH/g
Saponification Value mg KOH/gm
Polysorbate 20
Yellow to Amber liquid
5 - 7
96 - 108
40 - 50
Polysorbate 40
Yellow to Amber liquid
----
89 - 105
41 - 52
Polysorbate 60
Yellow to Amber liquid
----
81 - 96
45 - 55
Polysorbate 80
Yellow to Amber liquid
----
65 - 80
45 - 55
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