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grinding barium nitrate


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Posted

By using a good respirator?
Without correct safety equipment you should not even attempt to work with a chemical this poisonous.

So clean your ballmill, get (ALL) your gear on and start grinding.

Posted

yes I have a respirator! So Can I grind it in a ball mill? I ask it because I've read that you can grind only KNO3, C,S. But I've also read that you can grind all chemicals separatly without problems.

Posted

thx!! I just tested my green MgAl stars..They are very very beautifull! The green is intensive but the only problem is to light the stars.. I tried to prime with BP without results(is too cold).. what kind of prime must I use? I don't want to use chlorate or perchlorate. A simple prime formula if is possible..

Posted

I don't know the exact composition you're using. A common green metallic star composition used here consists of Ba(NO3)2, Parlon and MgAl and is called emerald green. This composition can be primed by straight dextrinated meal +10% MgAl. Slightly wet the stars using a spray can, and roll them trough the ballmilled prime. I would try this first, since it seems to be adequate for most color compositions I've used so far. If it does preforms poorly using primes containing perchlorate (e.g. veline superprime) of step priming is the way to go.

Posted

You could try a hotter then meal prime.
This is a verry wel working one, especially when finished by a layer of straight meal afterinitial priming.

Hot Igniter Star Prime

[*]
Chemical Percent
[*]
Potassium perchlorate 71%
[*]
Charcoal, airfloat 14%
[*]
Red gum 9%
[*]
Magnalium 6% (Same size as used in stars being coated)


As stated above, meal + 5%Si will light just about anything.

Posted

Thanks to all but I haven't perchlorate and silicon. the forumula that i've used is:

Hardt Green Star #5
Barium nitrate 56
Red gum 7
Magnalium -200 mesh 17
PVC 15
Dextrin 5
with 25% alcohol / 75% water
but is safe to ballmill BP with MgAl together?

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