streetlethal Posted January 23, 2020 Posted January 23, 2020 I cant find any 325 mesh barium nitrate online anyone have a source ? 1
SharkWhisperer Posted January 23, 2020 Posted January 23, 2020 (edited) And you probably won't find Ba nitrate specifically ground to 325 mesh. Like....ever. Why the specific sizing requirement? Run the usual granulated powder through the mill or a coffee grinder (use a mask and do it outside please, standing upwind of your grinder). Then you will have superfine oxidizer essentially suitable for any composition that uses it. Or you could be really anal and run it through a bunch of screens til you get your elusive, but perfect, 325 mesh BaNO3, whoo hoo!!! For the life of me, I simply cannot fathom why you require BaN03 ground to 325, but not 100 or 400 mesh? You probably do not. What is your particular composition that requires this tight sizing specification. Edited January 24, 2020 by SharkWhisperer
streetlethal Posted January 24, 2020 Author Posted January 24, 2020 And you probably won't find Ba nitrate specifically ground to 325 mesh. Like....ever. Why the specific sizing requirement? Run the usual granulated powder through the mill or a coffee grinder (use a mask and do it outside please, standing upwind of your grinder). Then you will have superfine oxidizer essentially suitable for any composition that uses it. Or you could be really anal and run it through a bunch of screens til you get your elusive, but perfect, 325 mesh BaNO3, whoo hoo!!! For the life of me, I simply cannot fathom why you require BaN03 ground to 325, but not 100 or 400 mesh? You probably do not. What is your particular composition that requires this tight sizing specification.Star formula on sky lighter I am trying out. I found a site that sells 325 mesh but its been out of stock for a while, I figured that was the highest mesh so that's why I stated that specified mesh. I have milled it for hours but I didn't like the results. The green just wasn't there, maybe I wasn't standing far enough away some say that matters some do not so
SharkWhisperer Posted January 24, 2020 Posted January 24, 2020 I see. Coffee grinder's faster than milling but less safe with dust cloud generation when opening/pouring. Hoping you're wearing protective gear when opening your mill. 325 mesh is talc soft, but your mill should easily produce that or smaller sizes. Does the formula have a chlorine donor for color enhancement? Are you evaluating color by sending up a shell or by static burning on ground or using a stargun/mini-mortar? The latter would give you both distance from the burning star and also provide motion of the star through air; if you are sending up stars in shells already, then my last sentence is of little use. 1
WSM Posted January 25, 2020 Posted January 25, 2020 (edited) I cant find any 325 mesh barium nitrate online anyone have a source ? Once I came into possession of 55 lbs (25 K) of course crystalline barium nitrate. I put it in five pound parcels and sold off all but one 5 lb sack of it before I bothered to try ball-milling some. When I did ball mill it, it milled to dust in about one hour. I was sorry I sold the rest instead of keeping it to use. I attribute the ease of milling it to the mass of the material, I mean that stuff is heavy! I suspect it helps mill itself because of the density of those crystals. If you want finer Ba(NO3)2, and have a ball mill & decent milling media, plus the will to do it; go ahead and mill it. You may be as surprised as I was, how well it works. WSM Edited January 25, 2020 by WSM
Carbon796 Posted January 25, 2020 Posted January 25, 2020 The green just wasn't there. May be more do to the formula, or testing situations. Than how many hours you milled the barium nitrate for. It could also be bad or contaminated barium nitrate if sourced from a different supplier.
WSM Posted January 26, 2020 Posted January 26, 2020 The green just wasn't there. May be more do to the formula, or testing situations. Than how many hours you milled the barium nitrate for. It could also be bad or contaminated barium nitrate if sourced from a different supplier. That's a good point. If the least amount of sodium contamination is there, it'll definitely affect the color. Strontium is often found with barium ore, and very difficult to remove (which would change the color output of star compositions, depending on the proportions of each in the Ba(NO3)2). If your supplier is sourcing his material from low cost sources, you may have an impure product. Try a flame test and see if different samples look differently. WSM 1
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