Jump to content


Photo

Potassium Dichromate For Burn Rate


  • Please log in to reply
15 replies to this topic

#1 Zmann

Zmann

    Member

  • General Public Members
  • PipPip
  • 46 posts

Posted 17 August 2007 - 02:44 PM

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

#2 YT2095

YT2095

    The Resourceful One.

  • General Public Members
  • PipPipPip
  • 446 posts

Posted 17 August 2007 - 03:23 PM

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!
"In a world full of wonders mankind has managed to invent boredom" - Death

#3 spectrum

spectrum

    Pyro Forum Regular

  • General Public Members
  • PipPipPip
  • 229 posts

Posted 17 August 2007 - 07:11 PM

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.

#4 Mumbles

Mumbles

    Pyro Forum Regular

  • General Public Members
  • PipPipPip
  • 955 posts

Posted 18 August 2007 - 04:47 AM

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.


#5 dr thrust

dr thrust

    Pyro Forum Top Trump

  • General Public Members
  • PipPipPipPip
  • 1,408 posts

Posted 18 August 2007 - 11:50 PM

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? :)

#6 portfire

portfire

    Pyro Forum Top Trump

  • General Public Members
  • PipPipPipPip
  • 1,231 posts

Posted 19 August 2007 - 09:14 AM

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
"I reject your reality and substitute my own" Adam Savage

#7 dr thrust

dr thrust

    Pyro Forum Top Trump

  • General Public Members
  • PipPipPipPip
  • 1,408 posts

Posted 19 August 2007 - 10:19 AM

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

#8 portfire

portfire

    Pyro Forum Top Trump

  • General Public Members
  • PipPipPipPip
  • 1,231 posts

Posted 19 August 2007 - 10:35 AM

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


Alcohol and hours of "surfing the net" :P
"I reject your reality and substitute my own" Adam Savage

#9 hashashan

hashashan

    Member

  • General Public Members
  • PipPip
  • 45 posts

Posted 20 August 2007 - 02:32 PM

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

#10 dr thrust

dr thrust

    Pyro Forum Top Trump

  • General Public Members
  • PipPipPipPip
  • 1,408 posts

Posted 20 August 2007 - 07:07 PM

hi i dont think kmno4 has any place in pyro

#11 Andrew

Andrew

    Rocket Scientist, no really, I am!

  • General Public Members
  • PipPipPip
  • 603 posts

Posted 20 August 2007 - 07:52 PM

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!!! :ph34r:

#12 MDH

MDH

    Pyro Forum Regular

  • General Public Members
  • PipPipPip
  • 742 posts

Posted 11 September 2007 - 07:33 PM

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

#13 cooperman435

cooperman435

    UKPS Caretaker & Bottlewasher

  • Admin
  • 1,911 posts

Posted 01 November 2008 - 05:48 AM

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.

#14 knackers

knackers

    Pyro Forum Regular

  • General Public Members
  • PipPipPip
  • 204 posts

Posted 02 November 2008 - 10:00 AM

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

#15 paul

paul

    Pyro Forum Regular

  • General Public Members
  • PipPipPip
  • 722 posts

Posted 02 November 2008 - 07:44 PM

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!

My flickr photo album


My first very own firework pictures are online!!!




1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users