Shrestha Roy Goswami

5 Questions 7 Answers 0 Followers

Questions related from Shrestha Roy Goswami

Why is starch maleate pale yellow in color?

I need to esterify starch with maleic anhydride. The resultant product is pale yellow in colored.

10 October 2017 9,366 2 View

Can anyone explain the observation of starch agglomeration in 1-ethyl-3-methylimidazolium acetate?

I am trying to dissolve starch(1wt.% w/w) in 1-ethyl-3-methyl imidazolium acetate (>97% purity, impurity

09 September 2017 9,080 2 View

Can DMSO in sample injections of 10 micro-litre volume harm a C-18,(200*4.6mm),Silica HPLC Column?

I have been trying to analyze 5-Hydroxymethylfurfural from starch.For this,I have to use DMSO to get good product selectivity,a halide catalyst and an ionic-liquid[EMIMCl/BMIMCl] to make the...

08 August 2015 9,103 10 View

How can I separate most of the DMSO from water-ionic liquid mixture by fractional crystallization?

I am using DMSO,water-IL and solid catalyst to synthesize HMF and managed to extract most of it from reaction media with diethyl ether.Following this,I am left with the spent catalyst+ionic liquid...

08 August 2015 8,533 6 View

How should I proceed to dissolve starch in water?

To dissolve starch in DMSO is a viable option but I don't know the approach and the associated physico-chemical changes that may happen in the starch.

04 April 2015 2,441 7 View