Khaled Hassan

5 Questions 5 Answers 0 Followers

Questions related from Khaled Hassan

Doctors please , I wanna ask about how to determine the calcium binding capacity of the polymer?

we are synthesis sodium polyacrylate and using it to hold calcium ions from water to decrease the hardness so now we are in need to measure number of milligrams of calcium ions that taken by the...

02 August 2023 3,078 2 View

Please, can any one tell me the difference between the wt/wt% and °Brix?

we synthesis sodium salt of malic acrylic copolymer, when I tried to measure the solid content in oven at 150 °C for half an hour the result be 37.2% but when I tried to use refractomer the result...

14 June 2023 7,953 5 View

Why this sharp decrease occurred?

I had prepared 50ml of 20,25,30,35 and 40 ppm of eriochrome black T and add 25mg of copper sulphide as photocatalyst with stirring under dark for an hour then under light for 2hours the resulted...

12 January 2022 3,386 1 View

Please, can any one send me (JCPDS Card No.06-0464)of CuS hexagonal?

I prepared CuS and Iwanna characterize it by xrd data

21 December 2021 1,638 6 View

Photocatalytic degradation of phenolphethalien

Iam using photocatalyst for photodegrade phenolphethalien in alkaline medium but the fading of phenolphethalien color with time cause aproblem in monitoring %R making me not know this percent...

01 January 1970 1,148 4 View