However, there were significant correlations between the enthalpy involved and each of VAG maximum viscosity, breakdown, viscosity at 50 ยฐC and set back (r = 0.53, P < 0.05; r = 0.49, P < 0.05; r = 0.62, P < 0.05; r = 0.65, P < 0.01, respectively). For RVA data, correlations were found only between
A Simple, Rapid and Reagentless Turbidimetric Method for Determination of Light Stabilizer Tinuvin 622 in Polyethylene
โ Scribed by Farajzadeh, Mir Ali ;Ebrahimi, Mortaza ;Ranji, Ali ;Feyz, Elham ;Bejani, Vali
- Publisher
- Springer-Verlag
- Year
- 2004
- Weight
- 129 KB
- Volume
- 148
- Category
- Article
- ISSN
- 0344-838X
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## Abstract A rapid single step method for direct determination of total fatty matter (TFM) of soaps has been developed. The procedure involves twoโphase titration of a 2% solution of soap in ethanol : 2โpropanol (4 : 1 v/v) under alkaline conditions with 0.01 M solution of pโtert. octyl phenoxyeth
The method described here is essentially a modification of the method of Dilley and Crane (1) but has the advantages of greater speed and simplicity and gives higher recoveries. ## MATERIALS Benzene, petroleum ether (S&80), diethyl ether, absolute ethanol, and acetone were all analytical reagent