@ Sebete Mabaleha
Sebete has asked me a question via PM and I will ask it on his behalf so that all experts can contribute to an answer:
Hi Alan
I realized that you answered the question about zeolite preparation so I thought I should ask you directly and you might be extremely helpful. Thanks in advance.
For a gel composition like below, does it mean that this moles of the reagents were added together, e.g. add 0.0237 moles of Na2O oxide, 0.0197 moles of Al2O3, add 0.4925 moles of TEOS, you get the drill, to produce a gel or it is based on the calculations of moles from gel preparation stoichiometric relationship and reactions ?
0.0237 Na2O: 0.0197 Al2O3: 0.4925 TEOS :0.541 TEAOH: 8.281 H2O
@ Sebete Mabaleha
I must admit that I am completely confused by your question. What is the formula of the material you wish to synthesize? The 5 numbers you give together with the 5 materials do not add up to 100%. If they're moles then how many moles of your product are produced? What is the reaction you propose to undertake?
You would not be able to add 0.0237 moles of Na2O. Indeed you'd not be able to purchase this material (Na2O) and use it. It reacts very quickly in air picking up moisture to form NaOH. Compositions of glass and gels are often referred to by this (confusing) format because the materials are not found in that form in the finished product.
Stoichiometry? But where is the stoichiometric equation. Mixing of components has nothing to do with stoichiometry. Regards
Thank you very much Alan for sharing my question. I finally figured it out.
Kind regards
Sebete
Hi, how may I execute the FAU zeolite synthesis using sodium silcate, sodium hidroxide and aluminium oxide? Is correct the use of coeficients in formula of specific zeolite to obtain the real masses to weight and then continue the process (milling, fusion, stirring with water, washing and drying)?
- Badges
- Science topic
- Similar topics
- Gels