Sodium metasilicate mixed with cold, concentrated sodum hydroxide yields sodium orthosilicate and water
Na2SiO3 + 2NaOH → Na4SiO4(in solution) + H2O
Now, your question. looking at mass relationships..
assume one mole of each..
122grams + 80 g>>>184g+ 18
of the 184 grams of sodium orthosilicate, one can Pull from it 124 grams of Na2O, and 60g of SiO2. That on the basis of mass, is about 2:1 ratio
Honestly, the way your question is worded, I am not certain what it is aiming for.
How to determine SiO2/Na2O ratio after mixing Na2SiO3 (SiO2=30%, Na2O=9%, water=61%)and NaOH (8M)solutions?
2 answers
Thank you.
This mix is used in concrete technology. They mix Na2SiO3 solution and NaOH solution and add it to fly ash and aggregate to make concrete. The resulting SiO2/Na2O ratio is important for making concrete. I want to know how it is determined. I have seen somewhere they mentioned they have mixed NaOH (5 M) and Na2SiO3 (SiO2=30%, Na2O=9%, water=61%)with a Na2SiO3/NaOH ration of 1.5, and the resulting SiO2/Na2O ratio is 0.15, but they haven't mentioned how.
This mix is used in concrete technology. They mix Na2SiO3 solution and NaOH solution and add it to fly ash and aggregate to make concrete. The resulting SiO2/Na2O ratio is important for making concrete. I want to know how it is determined. I have seen somewhere they mentioned they have mixed NaOH (5 M) and Na2SiO3 (SiO2=30%, Na2O=9%, water=61%)with a Na2SiO3/NaOH ration of 1.5, and the resulting SiO2/Na2O ratio is 0.15, but they haven't mentioned how.