Alberto Lazaro

5 Questions 6 Answers 0 Followers

Questions related from Alberto Lazaro

What is the structure of commercial dissolved sodium silicate solutions? What is the amount of Q0-Q4? Are there small colloids in the solution?

Sodium silicate solutions is commonly used, still not perfectly understood. I would like to get information for commercial sodium silicate with a ratio (SiO2/Na2O) of 3,2-3,3 of the concentration...

15 October 2019 8,737 0 View

Do you know of a process to prepare mesoporous nano-silica in acidic media?

Lately, I am developing a method to synthesis mesoporous nano-silica using silicates in acidic. The method works wonderful and we have a high purity and high SSA. My question is related to the...

20 June 2017 1,588 2 View

What is the most suitable surfactant to control the porosity/particle size of silica below the isoelectric point and T=50 C?

What is the most suitable surfactant to control the porosity/particle size of silica below the isoelectric point (pH between -0.5 and 2) and temperature between 50 and 90 C? We are studying a...

19 March 2015 8,375 5 View

Which laboratory colloidal mill should we buy to break the agglomerates of amorphous mesoporous silica, which initially are 10 micron?

Dear all, We are planning to buy a lab colloidal mill to break the agglomerates of amorphous silica. The agglomerates are around 10 microns and their specific surface area are around 400 m2/g. Our...

14 November 2014 4,569 5 View

Has anyone experienced a bimodal pore size distribution for nano-silica with lacking of pores at 5nm?

I have measured the pore size distribution of a nano-silica produced in our lab (more details about the production method in the attachment) using nitrogen physisorption and the DFT method. The...

24 November 2013 1,513 3 View