15 Questions 23 Answers 0 Followers
Questions related from Narayanan Subramanian
How to completely remove water from Isopropyl alcohol? I have isopropyl alcohol with 3% moisture. I need to remove water completely. Due to azeotrope with water, distillation not possible. I tried...
16 December 2021 6,923 6 View
Preparation method of 1-chloropropylene https://patents.google.com/patent/CN105669359A/en (Embodiment 1) I tried the above patent in reflux condenser. Not >95% converted. But there is...
11 August 2021 2,259 0 View
How to calculate H2/CO ratio in dry reforming? This question is for my friend. The ratio should come around 1.0. But the ratio coming 35, 40, 48. CO peak is higher and H2 peak is smaller. What is...
01 February 2021 8,024 3 View
For dissolving haloalkanes which is best solvent - polar or nonpolar? How much quantity of solvent is required if the solublity is unknown.
13 October 2020 3,653 4 View
The color of dichloropropane changed from colorless to brown color during distillation. The actual color of dichloropropane is colorless. Why the color changed. Thank you
28 September 2020 3,424 3 View
I need to convert 1,2-dichloralkane to alaknediol using reflux condenser. The dichloroalkane is insoluble in water. Hence i need to take methanol/ethanol as solvent. For substitution reaction i...
15 September 2020 6,464 3 View
I am reading one journal article [Author x]. After reading i want to use that sentence in my own way. I want to give citation of that paper. If the author x of the article not cited any and used...
01 January 1970 4,447 6 View
I want to replace halide atom by acetate ion. When i heat alkyl halide with acetic acid, the color of the solution becomes dark brown. Why the color developed. Is it means reaction progressed....
01 January 1970 5,223 2 View
I have synthesized polyether polyol and the projected molecular weight is 6000. However, i obtained weight and number average molecular weight around 5100. Why it is decreased. How to improve...
01 January 1970 6,151 8 View
I need to carryout some conversion reaction. The reaction generates 1.5 to 2.0 bar pressure (autogenous). But in patent it was mentioned that 13-15 bar pressure applied for same reaction. Hence...
01 January 1970 4,506 11 View
I used acetic acid and water in hydroxylation reaction. After reaction how i can separate acetic acid and water from reaction medium. Simple distillation not working due to the eutectic mixture of...
01 January 1970 272 5 View
Is polymerization of low molecular weight diols with DMC catalyst possible? If so, what is the parameters we should follow? Because DMC can be activated by minimum 400 molecular weight polyols...
01 January 1970 4,224 2 View
What is the general procedure for the synthesis of L61 and L64 type non ionic surfactant and its oxide composition
01 January 1970 1,157 0 View
What is molar substitution? How to calculate molar substitution? What is the use of calculating molar substitution?
01 January 1970 464 2 View
What is the maximum temperature we can use in heating mantle? In heating mantle it displaying capacity 300 watt. I want to heat my reaction at 200 degree. Is it possible in reflux reaction? My...
01 January 1970 5,020 2 View
