I mixed up a 60 ml. batch of No-damp (2.5% oxine benzoate, 97.5% isopropyl alcohol by weight). It seems to be the real stuff, same brownish colour, same smell. Note that the old No-Damp was 3.2% oxine benzoate, probably no difference.
Let me know what volume of No-Damp you want to mix up and I will send you the proper amount of the dry ingredients. You mix it yourself-see below. It seems to keep for a long time but you may want to mix up smaller batches and use as needed. See below for the details. Post in this thread so we can all gauge the interest. Then we can figure out prices-just enough so I'll break even + postage.
If you look at the MSDS of No-Damp you will note it is 2.5% oxine benzoate and 97.5% isopropyl alcohol by weight and the SG (specific gravity is 0.79. The molar weight of oxine or 8-hydroxyquinoline is 145.16 and benzoic acid is 122.12 (gm/mole). So the molar weight of oxine benzoate is 267.28. The SG of isopropyl alcohol is 0.786. This is all you need.
So say you want to make V ml. of No-Damp. This would weigh 0.79V which would be 97.5% isopropyl alcohol by weight or 0.79V x 0.975 gm or .79V x 0.975/.786 or 0.98V ml.
For the same V ml of No-damp the oxine benzoate would weigh .025 x 0.79V gm. or .025 x 0.79V/267.28 moles. Then the oxine would weigh 145.16 x 0.025 x 0.79V/267.28 or 0.0107 V gm. Similarly the benzoate would weigh 122.12 x 0.025 x 0.79V/267.28 or 0.009 V gm.
For example to make 100 ml of No-Damp take 98 ml of 99% Isopropyl alcohol (the stuff I have from SDM or Loblaws is pure except for 1% water, no other adulterants), add 8-hydroxquinoline 1.07 gm and benzoic acid 0.9 gm. Mix it outside & keep it outside in plastic or glass (not metal), well sealed. Dilute it 100 to 1 immediately before use.
Well the No-Damp is slowly selling and my fame is spreading across the planet. My last sale was to Tasmania! It actually got there Ok, too. Present sales are for $7 to Canada with postage included. Two packs of chemicals for 250 CC each of No-Damp each after adding the Isopropyl alcohol. USA $8, international $11.
There seems to be enough interest to make a new order for chemicals for No-Damp. I will make an order and when the chemicals arrive I will post here and can take orders. Probably the same price: $6 (see above for details). Needless to say this just covers costs. Non-monetary donations gladly accepted.
dvg: Sarra's safe inside
Mar 31, 2019 20:40:58 GMT -5
bonfield: I've decided to finally reveal my best-kept secret for growing healthy Neps: Just spit on them every few days, the enzymes in saliva help them to better absorb the fertilizer I spray them with!
Apr 1, 2019 14:24:31 GMT -5
dvg: Salivating up your drools?
Apr 1, 2019 16:30:07 GMT -5
dvg: Duped again on April Fool's!
Apr 1, 2019 16:30:45 GMT -5