Ahmed S. Moharram

7 Questions 9 Answers 0 Followers

Questions related from Ahmed S. Moharram

Is the anticorrosion efficiency of oligomeric surfactants (Trimeric or tetrameric ) greater than that of gemini ones?

Could someone support me with papers that explain the anticorrosion efficiency of oligomeric surfactants and how it changes with the degree of oligomerization?

14 June 2017 1,022 3 View

Is there any difference between micelles shape and size of a surfactant in solution and its aggregates formed on Au substrate in AFM images?

I have synthesized a new surfactant and its aggregation on Au substrate is studied using AFM. I obtained spherical aggregates of about 50 nm diameter. Are these aggregates on Au representing the...

28 November 2016 7,142 7 View

Does H2PtCl6.xH2O solution stable for long time?

I have a solid sample of H2PtCl6.xH2O. It is known that this compound is highly hygroscopic and difficult to handle during weighing so i want to dissolve the whole sample in a known volume to...

24 May 2015 3,980 3 View

What are the different families of mesoporous silica nanoparticles?

Can anyone support me with papers that show the families of mesoporous silica nanoparticles and the difference between them?

20 February 2015 2,928 2 View

What is the source of water of crystallization?

I read a paper that explains the synthesis of an organic compound. The authors said that all the solvents they used are dried, but the resulting compound had water of crystallization!! Is it a...

15 March 2014 6,224 6 View

Can anyone help with electrical conductivity?

What are the solvents - except water - that can be used to measure the electrical conductivity of a surfactant and how can I calibrate the apparatus for each solvent?

24 December 2013 2,883 3 View

Gemini surfactants

Is (A) a gemini surfactant or a conventional one? and is (B) a gemini surfactant or a tetrameric one? What is the rule that applies here?

02 December 2013 7,121 7 View