15 replies to this topic

[Zmann]

has anyone used potassium dichromate to increase burn rate of colored stars(pot perc) are there any incompatabilities with it

[YT2095]

I can`t see any compatibility issues with it, but I will say to be Very Careful with it, Hexavalent Chrome salts are known Carcinogens!

[spectrum]

I do not know of any benefits from getting involved with this chemical or indeed anything related to Chrome, unless you want to poison someone or yourself!!!. Chromates were used in deley formulations for years but are rarely considered now due to the carcinogenic effects. Lead Chromate (what a compound!) was used in the formulation of brown smoke puff flash powder - you see this at the beginning (or end) of "Dads Army". My advice would be to keep well away.

[Mumbles]

While dichromate will increase the burning rate of perchlorate based compositions, you'd probably be better off modifying the formula as is. I'm not afraid of working with dichromate, but again it's not exactly something I enjoy working with.

Edited by Mumbles, 18 August 2007 - 04:47 AM.

[dr thrust]

i have a "bit" a few grams no real reason i think i just like collecting these things!,anyway somthing i read a while back,said it was used to "coat" magnesium to make it less reactive does anybody know the process?

[portfire]

i have a "bit" a few grams no real reason i think i just like collecting these things!,anyway somthing i read a while back,said it was used to "coat" magnesium to make it less reactive does anybody know the process?

http://www.jackerypy...dichromate.html

[dr thrust]

thanks dean for the link,ps how the hell do you find all these things!

[portfire]

thanks dean for the link,ps how the hell do you find all these things!

Alcohol and hours of "surfing the net"

[hashashan]

You know there are much nicer compounds like MnO2 or KMnO4 to speed up the burn rate of chlorate, perchlorate, bromate etc...

[dr thrust]

hi i dont think kmno4 has any place in pyro

[Andrew]

hi i dont think kmno4 has any place in pyro

KMnO₄



I'd agree most of the way, certainly 100% for beginners. It does have a few applications but they are pretty advanced for most to go around piss arseing about with.

As for pyro with Chromium, it's a bit dodge. It's not too much of a problem unless you use huge amounts!

Lead Chromate (what a compound!)

Kill the f*ck out of everything juice!!!

[MDH]

I wonder what place a ferrate could have. I've heard quite a lot about them...

[cooperman435]

Reviving an old thread here but......

I cant find for love nor money any "how to" about the process of treating Mg with Pot Dichromate. Could someone who has done this procedure please enlighten me as to how its done please.

[knackers]

Reviving an old thread here but......

I cant find for love nor money any "how to" about the process of treating Mg with Pot Dichromate. Could someone who has done this procedure please enlighten me as to how its done please.

i havn't done it before but this link is a book by Kosanke, Sturman and shimizu, page 20 hits on coating mg with k dichromate



http://books.google....r...6&ct=result

[paul]

i havn't done it before but this link is a book by Kosanke, Sturman and shimizu, page 20 hits on coating mg with k dichromate



http://books.google....r...6&ct=result

Post 6 in THIS thread haha! Scroll up and find your how-to!