Homemade Sodium Silicate Water Glass
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- čas přidán 21. 08. 2024
- How to prepare sodium silicate at home?
Chemikal equation:
2NaOH + SiO2 = Na2SiO3 + H2O
two moles of NaOH + one mole of SiO2 gives one mole of Na2SiO3
it is
80grams of NaOH + 60grams of SiO2 gives 122grams of Na2SiO3
Note: There is mistake in video equation. Not two H2O but only one mole of H2O
NaOH dissolves glass and this includes both soda lime and borosilicate glass so use steel instead
it dissolves in 25 c but it is much slower and also rip beaker because no matter how hard you try you will never get all the sodium silicate out
HCl should convert all the surface Na to salt leaving a layer of SiO2. The glass will be etched.
The ratio of this silicate will be less than 1.0, (0.968 if the NaOH is 100%), commercial solutions are typically 3.2
Thanks for the lesson in water glass. Peace too.
The music makes me feel like getting on my big powerful Harley
and ridin' on down the highway to go make some Sodium Silicate.
can i use raw quartz powder for sodium silicate?
can sodium silicate be a resin
Is that conductive?
What & where use this chemical especially in concrete & benifit
You add 60g of silica gel or silica powder??
Obrigado por compartilhar seu conhecimento
Hi, hope you can advise, I have made several batches of Water Glass using the correct measurements and ingredients, the problem I'm having is the finished product does not harden properly by air drying, it takes ages to solidify but remains tacky to the touch. Also is there a catalyst you can add as a hardener to speed the curing process. Thanks :)
Water Glass can be cured by carbon dioxide.
You need to apply heat to cure it.
dissolved sand.
Could u paint this over concrete to waterproof it... Just rendered a pizza oven
I don't know. I used it as a refractory binder.
You don't have the ratio's right. You can use 2/5th of lye on 3/5th on silica gel. So on your 100 ml of water solve 40 grams of caustic soda. Then add 60 grams of silica gel. It may take a while to get it all solved.
Yes, what the hell do I know about it; since I only made 5 liters of water glass (about 1.25 gallon) a few days ago. Further you just keep ignoring the many video's on CZcams using the same ratio as I did.
So mister, you stick to your way; I stubbornly will do it the right way. On 5000 grams of water I'll keep using 2000 grams of NaOH and 3000 grams of SiO2, which will give about 5 liter of highly concentrated water glass.
Have a nice life.
+CHOZEbastler Hahaha. You are funny.
hmmm let me understand this, you had 5KG of water ( 5 litres, 2 kg of NaOH and 3Kg of SIO2 and all you got out was 5 Litres of waterglass??? Where did all that additional weight dissapear to? Surely the fact that you have made the water denser with the 2 additional chemicals should by rights mean you ended up with well over 5 litres of waterglass even if you boiled off a heap of the water.... Sorry if this seems a stupid question, but where did all that additional mass and volume go?
+Lloyd Milton not a stupid question. its about 5 liters but its real heavy. Didnt weight the jug but its prolly 8 kilo now. I cant explain it either. Its takes about two hours to solve all of silicagel So the water is vapourating I guess.
definitely seems odd to me... of course there would be some 'vapour' loss especially while boiling for 2 hours, but some would be needed to be 'retained' for the waterglass to remain liquid I would have thought... Obviously the other 5KG of powdered mass would dissolve in the water but it would not 'dissapear' but if you are getting about 8KG of weight, then you would be losing 2 litres of water in total... ahh the light clicks on... 2kg of water mass by volume might be actually displaced by 5kg of powder mass by volume... that would explain it... Man that must be some thick solution you have there...