15 replies to this topic

[pyroguitarman]

Sorry if this has already been brought up. On the Powerlabs website there is the suggestion of using Potassium bromate with charcoal and sulphur. Is this mixture safe to use? I wouldn't make it anyway, but If anyone knows about potassium bromate stability I would appreciate it if you could post any info. All I know is that it's been banned from being used in bakery products in the UK because it may be carcinogenic, and it is a powerful oxidizer, comparable to potassium permanganate, but is it unstable like potassium permanganate?

[MMMMMM Pyro]

KBrO3 is essentially a toxic, less stable version of KClO3, in my experience anyway.

Mr. Barros did that experiment just for curiosity I think, but no way would I use KBrO3 with S! Sounds like a death wish to me:)

Hope his helps

[MDH]

Only use charcoal. I have used potassium bromate several times the past, mostly for tiny devices. Recently I discovered they make excellent coloured flash compositions... but they're too unstable to be used in fountains or anything else.

I suppose if you wanted to spike sulfurless black powder or something like that you could try, gently wetting it down and granulating it. Even with powdered the sugar the stuff deflagerates very quickly though.

[YT2095]

Sulpher or Phosphorus with ANY Halate is courting disaster!

[hashashan]

From my experience... this is a very dengerous mixture. it will ignite from friction and a sharp blow, sometimes mixtures conaining S and BrO3 will spontaniously combust on drying.

I use KBrO3 in different mixtures and it is quite sensitive even without S. they detonate(yes I do mean detonate and not deflagrate) 50% of the time when hit with a hammer against a hard surface(the hit doesnt need to be too hard)

[lavenatti]

There are very good instructions for making your own potassium bromate here:

http://81.207.88.128...ynth/index.html

I followed these instructions using a platinum anode and was very successful. It's a fantastic experiment, I watched the nice red bromine form around the anode and flow to the bottom of the vessel, captivating! Crystals of KBrO3 started forming soon after.

I haven't tried using any of it yet but I'm looking forward to a few experiments.

This hasn't been banned in the US for use in breadmaking (it should be) I did see it on a list of ingredients for bread recently.

[pyrotrev]

This hasn't been banned in the US for use in breadmaking (it should be) I did see it on a list of ingredients for bread recently.

Well, I hope they use sulphurless flour in the US then

[YT2095]

funny you should say that, I make a 50/50 mix of KBrO3 and KBr, then I add an Acid to this, within seconds I have Instant Bromine! (it`s a nice way to store it rather than the element itself).
and so of course if there IS Sulpher based acids and KBrO3 and KBr present in a loaf...

well, I for one wouldn`t like to smell, never mind eat the stuff

[lavenatti]

A little flour, a little KBrO3, a little sulfur...

Poof! Instant toast.

Might be quite a seller.

[MDH]

Somewhere, a wonderbread executive is reading this thread on his computer.

[MMMMMM Pyro]

The new: 'Hovis best of Bromate'

But in all seriousness, I wouldn't want bread containing BrO3- in any of its forms!

Its not a pleasent thought really!

Edited by MMMMMM Pyro, 19 February 2008 - 11:46 PM.

[MDH]

What about monosodium glutimate? You don't want that either...

I made a magnesium flare from a packet of cheap ramen noodle powder. It was terrible. Interestingly, the rest started self heating so I left it out in the rain...

Good times.

[pyromaniac303]

Didnt think MSG was an oxidiser? Looking on the datasheet it says avoid contact with strong oxidisers... Or did you mean to say you used it in conjunction with other chemicals? I was wondering, as I can buy bags of MSG from the local oriental supermarket.

[MMMMMM Pyro]

I think, though I'm not sure, it was reference to not wanting MSG in bread.

After my quip with the Hovis best of Bromate...

[MDH]

Pyromaniac, I just used straight MSG and magnesium. You can buy MSG but I'm not sure what use it has besides just being toyed around with, which is always entertaining in your spare time.

Something in the ramen noodle powder managed to start reacting the composition like no tomorrow. It's still out there though, and so far with two dry days it hasn't managed to spontaneously ignite.

There are a lot of interesting exotic oxidizers out there that can be experimented with. They probably aren't used for a reason though.

Edited by MDH, 23 February 2008 - 03:29 AM.