NEMO-Chemistry
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DP washing soda anti cake agent?
I know sodium carbonate is cheap, one of the cheapest being washing soda, around here i went looking for some arm and hammer soda crystals.
It appears just about every supermarket and other likely shop (including ALDI and LIDL) sell washing soda crystals made by a company called DP (dri
pak).
I couldnt find A&H anywhere around here! Anyway on reading the datasheet { http://www.msodistributing.com/Soda_Crystals_MSDS.html}
It seems it says sodium carbonate >30%, water and a anti caking agent.
What is the likely chem used as the anti caking agent? Does anyone know if its likely to be insoluble? Yes I did try and dissolve some soda crystals
but it all seemed to dissolve.
My thinking is >30% could be any number but the fact it also list's water then i am hoping the chances are the vast majority of the stuff is sodium
carbonate and water.
I dont have a clue what sort of thing is normally used as a anti caking agent or if it would affect any reactions?
So has anyone used this brand before? The most common packet and the one i have is this stuff http://www.homecareessentials.co.uk/acatalog/Dri-Pak_Soda_Cr...
So would i be correct in thinking its pretty much sodium carbonate and little else? Would be great if so as its really cheap!!
Some of the other supermarkets sell it in a different packet but on checking its the same stuff in a different package!
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CRUSTY
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I couldn't really find anything on the anti-caking agent other than the mysterious unnamed agent that's on all of the MSDSs for this, in an
unspecified quantity.
Anyways, other than that, I did find a thread, although not the best source, on DMT Nexus about using store-bought sodium carbonate, and a couple of
people talk about their experiences with this very brand. The outcomes seem pretty mixed. Sorry I couldn't find more.
EDIT: silly me, forgot to paste the link  : https://www.dmt-nexus.me/forum/default.aspx?g=posts&t=28...
[Edited on 19-6-2016 by CRUSTY]
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NEMO-Chemistry
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Quote: Originally posted by CRUSTY  | I couldn't really find anything on the anti-caking agent other than the mysterious unnamed agent that's on all of the MSDSs for this, in an
unspecified quantity.
Anyways, other than that, I did find a thread, although not the best source, on DMT Nexus about using store-bought sodium carbonate, and a couple of
people talk about their experiences with this very brand. The outcomes seem pretty mixed. Sorry I couldn't find more.
EDIT: silly me, forgot to paste the link : https://www.dmt-nexus.me/forum/default.aspx?g=posts&t=28...
[Edited on 19-6-2016 by CRUSTY] |
Thank you i will give it a read, a bit annoying they are so vague with whats in it! Around here it seems to be the only brand available.
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unionised
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In my experience if you dissolve a lot of the stuff in not much water, there's some insoluble white stuff that I always guessed was CaCO3 but I never
checked. It settles or filters out easily enough.
As far as I can tell, the stuff is pretty nearly pure washing soda.
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NEMO-Chemistry
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| Quote: Originally posted by unionised | In my experience if you dissolve a lot of the stuff in not much water, there's some insoluble white stuff that I always guessed was CaCO3 but I never
checked. It settles or filters out easily enough.
As far as I can tell, the stuff is pretty nearly pure washing soda. |
Ok thank you, i did wonder with the 30% sodium carbonate if they were taking the figure without the hydrate bit, so adding on the water would take the
purity pretty high?
Its super cheap as no shipping so i guess no harm giving it a go, i didnt want to use something that might have some unknown anti cake agent.
I dont want to do something that releases some nasty! If i get lucky i might get a chance to finish my copper stuff and take a look at this.
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