Where can I buy Iodophor.
bandit, I haven't worked out your maths but at 12.5 ppm your answer will never be correct
I (incorrectly?) worked it out to be 1.25ml per 1,000ml (which is 1 litre)
it would seem from the article that the correct amount is 0.125ml per 1,000ml
Time to work it out properly I think -
12.5 ml : 1,000,000 ml
0.0125 litres : 1,000 litres (both sides divided by 1,000)
0.0000125 litres : 1 litre (both sides divided by 1,000)
0.0125 ml : 1 litre (left side multiplied by 1,000 to convert to ml)
Hmmmm, even this seems wrong to me! I give up! I'm going to keep using 2.5ml per litre It has always worked for me and until somebody corrects me I am going to keep using that amount.
I (incorrectly?) worked it out to be 1.25ml per 1,000ml (which is 1 litre)
it would seem from the article that the correct amount is 0.125ml per 1,000ml
Time to work it out properly I think -
12.5 ml : 1,000,000 ml
0.0125 litres : 1,000 litres (both sides divided by 1,000)
0.0000125 litres : 1 litre (both sides divided by 1,000)
0.0125 ml : 1 litre (left side multiplied by 1,000 to convert to ml)
Hmmmm, even this seems wrong to me! I give up! I'm going to keep using 2.5ml per litre It has always worked for me and until somebody corrects me I am going to keep using that amount.
Hmmm - Think I can sort this out.PieOPah wrote:Hmmmm, even this seems wrong to me! I give up! I'm going to keep using 2.5ml per litre It has always worked for me and until somebody corrects me I am going to keep using that amount.
Betadine contains 10% povidone iodine (the active bit) rather than 100% therefore once you allow for this reduced concentration, 1.25ml in 1000ml is 12ppm.
I am using Iodophor so should be the same as in the article. I think I got my figures from the bottle label which is why I use them.
Saying that, the lid broke a couple of weeks after having it so I transfered into an empty mini wine bottle.
This is what I have
Saying that, the lid broke a couple of weeks after having it so I transfered into an empty mini wine bottle.
This is what I have
Actually had mine shipped in from the states. I've found better US sites like morebeer/northernbrewer but homebrewheaven.com shows international carriage cost as you add items to the cart (you select ireland and economy which is shipped on the slow boat). Now I know the UK sites I'll order from there or even brouland. That said I got a big bottle which will probably last another year or more its so strong.niall wrote:Newkie, did you get yours locally? I ordered online which added a couple of quid in postage.
The stuff I have it B-T-F Iodophor Sanitizer which says its concentrated. One cap will do 5 gallons. There is a large warning which says it is corrosive but I've never bothered with gloves. Typically while I'm sanitizing i'm around running water so i just immediately wash off whatever gets on my hands although occasionally they do get stained yellow.
Try this site if you dont mind buying 5 litres at once.
http://www.dynamic-chemicals.co.uk/acat ... ophor.html
http://www.dynamic-chemicals.co.uk/acat ... ophor.html