Thread: Bi carb

I can't upload a pic, only a link, but the brand is Sisecam.

I've never heard of that one before but it says "Food Grade Sodium Bicarbonate" so it will be OK.

In case you need advice on how to dose it, here is my usual post giving full details:

"Sodium thiosulphate can be used to dechlorinate water either as dry crystals or made into a liquid if that is more convenient. The shelf life of dry crystals is many years if kept in a cool dark place. The theoretical shelf life of a sterile stock solution can also be many years but the actual shelf life in practice depends on how sterile you can keep it. This is because a common a bacterial contaminant of sodium thiosulphate can weaken it, especially if you keep opening the bottle to take some out which keeps letting in more air. For that reason and the fact that the crystals are so cheap, I recommend making up only what you expect to use in about six months then throwing away any that you haven't used and making up another six months’ worth.

I calculated this chart for students on my on-line Water Quality course which is designed for an international student base so I calculated it for all three major measuring systems which allows them to use whichever units they prefer. You only need to use enough for the amount of top up water that is about to be added but sodium thiosulphate is virtually non toxic unless added in ridiculous quantities so you can be very generous in the amounts added."

Originally Posted by davethefish1

usually get my bicarb from amazon now £38 for 25kg
was £28 12 months ago,

https://www.amazon.co.uk/PSN-Sodium-...0-a8eddba1bf6a

thats todays 'cost of living crisis' for you.
prices will soon crash though when the inevitable recession hits, and there is no demand anymore.

it's like, does no one remember what happened in the 1970's with high inflation?
recession, massive job losses, and high unemployment that lasted for a decade...

70's was a bit before my time.

I found a link to some at about £26, then when you get to the checkout, vat is whacked on then a shocking delivery charge.

Manke Sankey says the cheaper stuff should be fine as it says food grade, so I will try it out. If it turns out to be bad I will update.