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  1. #1
    Join Date
    7th September 2010
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    Storage of Black Powder

    What is the safest way to store black powder in small quantities that can be used at the launch site?

    I'm just not seeing it as been safe carting the GOEX 1lb metal box around - well not convenient either.

    I would ideally like something that has a large enough opening to get a small gram scoop into.

    I'm sure many of you already have a good way to do this.

    I've seen film cannisters being used, but not sure about this.

    Thanks in advance.

    W
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  2. #2
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    i use a 1oz glass vile with a nylon cap(plastic stopper). *less static* if you know what i mean.

    and i usually keep the ones that come in reloads, so i have 2grams pre-measured. usually i just throw 8 or 10 of these babies in the range box.

    1oz, is more than you need for a day of launching.
    http://www.camdengrey.com/essential-...ear-glass.html
    Last edited by ClayD; 25th March 2011 at 10:19 PM.

    "Dad, I am going to put a big motor in this skinny rocket... its going to disapear like a ghost!!!.....

  3. #3
    Join Date
    7th September 2010
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    Thanks Clay!

    I've been looking for a place to order that size glass jar.

    What about using plastic (HDPE??) - just to guard against breakage.

    W
    --
    TRA#: 13016
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    L2 - 04/03/2011 - Scratch built dual-deploy - J420R - 3615ft - Raven2 altimeter
    L3 - 03/23/2013 - Madcow Frenzy Xl with some extra length - M1297 - 10,600ft - (2) SL100s

    Highest Altitude - 10,600 Madcow Frenzy XL on an AT M1297
    16,433.0 Ns launched this year.

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  4. #4
    Join Date
    17th February 2009
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    Hewitt TX
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    I use a large old prescription plastic jar.
    Glass is not really a good idea because it doesn't show up on x-rays in the unlike event of a problem. The glass jar will contain the pressure much longer than the plastic will. This would create a larger boom rather than a loud boom with a lot of fire
    I have also used the zip loc food containers. The small throw away ones. Those work great too. They have a really large opening for the scooper.

    1oz may not last long. It also depends on how much you're using for each charge. A gram or two for each flight, then you're golden.

  5. #5
    Join Date
    20th January 2009
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    No Glass Containers for BP!

    Ditto to what Mike said.

    Bob

  6. #6
    Join Date
    18th January 2009
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    Rocky Hill, CT
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    I use 1 mL micro centrifuge tubes with screw on tops. With these I pre-measure 1/2, 1, and 2 gram loads.Then I don't have to weigh it on the field. Just unscrew the top and use what I need. I tend to carry about 50g in my range box this way.
    Al Gloer
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  7. #7
    What about pre-weighing charges and wrapping them in aluminum foil?

  8. #8
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  9. #9
    Join Date
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    Between the topsoil and the sun. A surface dweller.
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    Quote Originally Posted by Mike Di Venti View Post
    I use a large old prescription plastic jar.
    Glass is not really a good idea because it doesn't show up on x-rays in the unlike event of a problem. The glass jar will contain the pressure much longer than the plastic will. This would create a larger boom rather than a loud boom with a lot of fire
    I have also used the zip loc food containers. The small throw away ones. Those work great too. They have a really large opening for the scooper.

    1oz may not last long. It also depends on how much you're using for each charge. A gram or two for each flight, then you're golden.
    the glass jar wont contain any more pressure since the stopper would come right out. you are dead on with the x-ray thing.. hey doc whats this bump!, i dunnoo... for my 1oz, usualy having 20-40grams of BP, i am never worried.
    it can actualy focus light inside the jar. so dont leave it out in the sun either...
    I suggest using whats free, lot of guys use medicine bottles...

    Ziploc containers- thats a great suggestion, it's amazing how its easy to overlook a good solution..

    "Dad, I am going to put a big motor in this skinny rocket... its going to disapear like a ghost!!!.....

  10. #10
    Join Date
    10th October 2010
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    What ever happened to 35mm film canisters?
    Peter Olivola

  11. #11
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    7th September 2010
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    Raleigh, NC
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    I was wondering about the film canisters :-)

    Seems like in reading on BP safety HDPE film containers is a recommended storage option.

    W
    --
    TRA#: 13016
    L1 - 01/29/2011 - PML Explorer - H180 - 2429ft
    L2 - 04/03/2011 - Scratch built dual-deploy - J420R - 3615ft - Raven2 altimeter
    L3 - 03/23/2013 - Madcow Frenzy Xl with some extra length - M1297 - 10,600ft - (2) SL100s

    Highest Altitude - 10,600 Madcow Frenzy XL on an AT M1297
    16,433.0 Ns launched this year.

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  12. #12
    Join Date
    24th January 2009
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    Glennville, GA
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    storage BP

    I used film canisters and med bottles. They work well
    -----------------------
    Chuck Haislip
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  13. #13
    Join Date
    17th February 2009
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    Quote Originally Posted by Peter Olivola View Post
    What ever happened to 35mm film canisters?
    35mm what?
    what's film?(just playing)
    All the cameras I have are digital.

    Those canisters work great also.

    ClayD.
    The glass jars I was talking about have a twist top like a glass jelly jar but smaller. I believe those will build up more pressure. Granted for a micro sec. but it's micro sec.'s longer than the plastic.

  14. #14
    Join Date
    21st February 2011
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    Pink anti-static ziplock bags.
    Jeff Vegh
    TRA# 03011
    NAR# 92403

  15. #15
    Join Date
    18th January 2009
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    Stafford VA
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    I keep a perscription pill bottle with 25g or so in the ammo can. I also refill the containers that come with Aerotech HP reloads. I pre-measure for what I need and have a dozen or two in the range box.

    I know a number of people that use the powder containers/measure that muzzleloaders use.
    Handeman

    TRA #09903 L2

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  16. #16
    I use a brass flask from Gander Mountain. It holds more than enough for a weekend of flying big rockets.
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    Nick DeBrita
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  17. #17
    Join Date
    21st January 2009
    Location
    Johns Creek, GA
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    223
    I have a similar all-brass flask from the possible shop. Love it. I had some BP in a small glass bottle for awhile, but then realized, 'glass', probably not a great idea.
    --David

    SoAR #345, W4DKZ, NAR #87417 Level 2

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