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Carpet Cleaning Issues - Carpet construction, upholstery cleaning, stain removal, equipment, events, etc.

Sodium Metabisulphite

Posted by Ken_Wainwright (Ken Wainwright), 24 November 2003
Quite often, in discussions on this board, we'll talk about Chemspec's Spray N Go or it's generic version of Sodium Metabisulphite. When my colleague was buying some Sodium Met. a couple of years ago, he had prices quoted from specialist chemical suppliers as high as £120 plus for a 25kg bag. In the end he paid about £25inc. V.A.T. and delivery. Chemspec have a list price for Spray N Go refil 0.9kg of £22.61 inc. V.A.T.  I've just bought a 25kg bag for £14 inc V.A.T. collected, from a local wholesaler to the "Home Brew" trade. By the time me and a few colleagues have shared it out we'll soon use it all up. I'll do some numbers for you. The same amount as in a Spray N Go tub has cost me 5p.

Safe and happy cleaningSmiley
Ken
Posted by MB (Mark Betts), 24 November 2003
Ken
Remind me.

What is it used for and I take it its in powder form.

How much Metabisulphite do u add to say a litre of water>

Thanks


Mark

Posted by Ken_Wainwright (Ken Wainwright), 24 November 2003
It's a reducing agent used for coffee and coloured stain removal. High% results. Could be damaging (quite rare) so use with caution and rinse. I mix about 50ml of powder to 600ml of boiling water. It clears your sinus's so gloves, goggles and mask. Read up on Chemspec Spray N Go for further information about it's use. It's always recommended to use fresh and hot, but I've still had results cold after a week in the van.

Safe and happy cleaningSmiley
Ken

Posted by MB (Mark Betts), 24 November 2003
Ken

Just been reading the specs of Alltecs Coffe and stain REMOVER and that is metabisulphate.

They also do a Coffee and Tea stain REDUCER which is Sodium Hydrosulphate. Would the reducer/hydrosulphate be more aggressive and risky then?

Its funny i was using the Coffee and stain remover last week and the smell was very very familiar and i just souldnt quite put my finger on it.

I have just now done a search on cleantalk and an old post of Glynns popped up and amonst it he mentions it is also used as a Fixer in photographic processing. Now thats where i have smelt it before!!!   lol

Cheers

Mark

Posted by woodman (woodman), 24 November 2003
Caution:

When using Sodium Metabisulphite if you or your customer suffer from Asthma, inhaltion can bring on a sudden and immediate attack.

This is why companies sell the RTU solution so you can't cause harm to your customer or your self  Wink


Posted by Ken_Wainwright (Ken Wainwright), 24 November 2003
I totally agree with "Woody" re the H&S issues with this product, hence my reference to PPE in my earlier post. We should also be familiar with labels and SDS's.

Sodium Metabisulphite is a mild reducing bleach. Sodium Hydrosulphite is a strong, last resort, reducing bleach. Heat is a key element with these products. Cold they'll work, but heat is a powerful catalyst.

Safe and happy cleaningSmiley
Ken


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