insutama Posted September 23, 2015 Posted September 23, 2015 I accedently mixed up two bags one has strontium nitrate and one has barium nitrate is there a easy way of telling which is what one seems a little whiter than the other
Carbon796 Posted September 23, 2015 Posted September 23, 2015 Make a small 10-25 gram test batch, and see what color it burns . . .
Arthur Posted September 23, 2015 Posted September 23, 2015 If you have a blowtorch then the flame colours are obvious just sprinkle a grain or two into the hot blue flame. 1
rogeryermaw Posted September 23, 2015 Posted September 23, 2015 what arthur said is spot on. no fuss no muss. the strontium will make quite a red flame and very easy to tell.
Arthur Posted September 23, 2015 Posted September 23, 2015 If you can't tell one of the flame colours from 50 milligrammes take up knitting! You only need to identify one chem to know what the other is, if there are only two unknowns.
stix Posted September 24, 2015 Posted September 24, 2015 If you can't tell one of the flame colours from 50 milligrammes take up knitting! ... Yeah, but he'd probably get his red & green wool mixed up - and what a horrible mess that would look for his new ball-mill cover. Sorry, insutama - I couldn't help myself. Glad you asked though, so I won't have to in the future
Arthur Posted September 24, 2015 Posted September 24, 2015 Glad you sorted it! With pyro "unknowns" can be dangerous so always try really small quantities.
taiwanluthiers Posted September 27, 2015 Posted September 27, 2015 strontium nitrate burns very red, with or without a chlorine donor. barium nitrate burns yellow in a flame test, it needs a chlorine donor to turn green.
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