ASSRA Forum - Re: Nitre bluing, what mix of sodium/potassium nitrate

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Re: Nitre bluing, what mix of sodium/potassium nitrate (Read 2291 times)

John Boy Ex Member	Re: Nitre bluing, what mix of sodium/potassium nitrate Apr 16^th, 2021 at 3:47pm	Print Post
	Melting points Sodium nitrate ... 586.4F Potassium nitrate ... 633.2F


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AJ Full Member Offline Posts: 218 Joined: Aug 25^th, 2011	Re: Nitre bluing, what mix of sodium/potassium nitrate Reply #1 - Apr 16^th, 2021 at 9:51pm	Print Post
	I’m not sure if this helps or not: (You need to *Login* or *Register* to view media files and links)


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rgchristensen Frequent Elocutionist Offline Posts: 1188 Joined: Jan 2^nd, 2014	Re: Nitre bluing, what mix of sodium/potassium nitrate Reply #2 - Apr 16^th, 2021 at 9:52pm	Print Post
	How about using a multimeter and thermocouple and MEASURING the temperature? CHRIS


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Chuckster Frequent Elocutionist Offline Posts: 2312 Location: Colorado Joined: May 15^th, 2008	Re: Nitre bluing, what mix of sodium/potassium nitrate Reply #3 - Apr 17^th, 2021 at 12:40pm	Print Post
	Dave, Don't know much about the chemistry of nitre bluing. Have had pretty good luck with nitre fertilizer (16% nitrogen) from the garden shop. Melts at 300-400°F. Nitre blue at about 600°F (lead thermometer). Springs at about 700°F. Want them to bend before they break. Nitre blue is nasty, dangerous stuff, be careful. Chuck


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jimmy Senior Forum Member Offline Now available in Oklahoma. Posts: 469 Location: Skiatook Joined: May 12^th, 2009	Re: Nitre bluing, what mix of sodium/potassium nitrate Reply #4 - Apr 17^th, 2021 at 2:59pm	Print Post
	Chuckster, do you have a brand name? Is it at tractor supply or Ace hardware? I've wanted to try this. Sorry for the hijack.


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Chuckster Frequent Elocutionist Offline Posts: 2312 Location: Colorado Joined: May 15^th, 2008	Re: Nitre bluing, what mix of sodium/potassium nitrate Reply #5 - Apr 17^th, 2021 at 10:28pm	Print Post
	Don't remember the brand. Bought it at a garden shop several years ago. About a five pound bag. Chuck


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40_Rod Frequent Elocutionist Offline Extremism in the persuit of accuracy is not a vice Posts: 4285 Location: Knoxville, TN Joined: Apr 20^th, 2004	Re: Nitre bluing, what mix of sodium/potassium nitrate Reply #6 - Apr 18^th, 2021 at 9:52am	Print Post
	Ive been using Potassium Nitrate Stump killer That I got from a garden store. No brand name Just a paper bag with a pound in it. It has given me a beautiful blue-Black finish. 40 Rod


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