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#106 Mumbles

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Posted 07 September 2009 - 09:04 PM

Gringard magnesium is very coarse. It could probably be approximated by thin Mg machining swarf. It looks like little strips of foil, maybe 1-1.5mm across, and between 3 and 6mm long. Thats the stuff we usually use anyway.

I did have a question. Am I correct to assume that you need the CMC free-base, and not the sodium salt of it?

Edited by Mumbles, 07 September 2009 - 09:16 PM.


#107 drtoivowillmann

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Posted 08 September 2009 - 02:02 PM

Hi Toivo - thanks for the formulas - do you know the approximate size of the magnesium particles please?

Yes I have: about 0,5 to 1 mm, thickness about 0,2 to 0,5 mm, refrerences: ECKART-Werke ECKA MF 0,5 - 1 mm = LNR 17
as laboratory chemical true Grignard-Magnesium.

Greetings

Toivo

#108 drtoivowillmann

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Posted 08 September 2009 - 02:06 PM

Gringard magnesium is very coarse. It could probably be approximated by thin Mg machining swarf. It looks like little strips of foil, maybe 1-1.5mm across, and between 3 and 6mm long. Thats the stuff we usually use anyway.

I did have a question. Am I correct to assume that you need the CMC free-base, and not the sodium salt of it?


Again Magnesium 0, 5 to 1 mm, about 0,2 to 0,5 mm thickness, like ECKART-Werke ECKA MF 0,5 to 1 mm = LNR 17.

Its commun Tylose (sodium salt).

Greetings
Toivo

#109 Mumbles

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Posted 11 September 2009 - 02:56 AM

I would have thought the sodium presence from the CMC would kill any color that might be produced. Then again, I'm unsure just how much sodium CMC contains.

#110 a_bab

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Posted 11 September 2009 - 08:34 AM

CMC doesn't have any sodium in the molecule. There is a sodium salt of CMC though, simply called "sodium CMC" you may confuse CMC with.
Wall paper glue (metylan) is pure CMC.

#111 drtoivowillmann

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Posted 14 October 2009 - 05:33 PM

Dear Friends:

Finally: anyone tried it ? At least the white one ?
Cannot be so complicated !

When I still was an amateur
and not a professional, like today, I was happy with these
formulas for many years.

Greetings:
Toivo :rolleyes:

#112 Creepin_pyro

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Posted 14 October 2009 - 10:58 PM

Tovio, I'm interested in these formulas, but do not have any Mg of the type mentioned.

I do have some 0.5mm spheroidal Mg - do you think this will work?

#113 drtoivowillmann

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Posted 15 October 2009 - 09:56 AM

Tovio, I'm interested in these formulas, but do not have any Mg of the type mentioned.

I do have some 0.5mm spheroidal Mg - do you think this will work?


Simply try it, without any guarantee that it will work.

Toivo :blink:

#114 Creepin_pyro

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Posted 15 October 2009 - 10:50 AM

Shall do. I shall report back findings!

#115 T-sec

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Posted 11 July 2011 - 02:08 PM

Any one with a formula for purple strobe stars?




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