Friday, 2 March 2012

08:11 – Until yesterday, we were missing two of the chemicals that will be included in the biology kits. One of those, methyl cellulose, is still on order. The other, four pounds (1.8 kilos) of dipotassium hydrogen phosphate, showed up yesterday. I used it to make up 8 liters of fertilizer concentrate part A, enough for 60+ kits. Although the stuff is fertilizer-grade, it looked quite pure, white crystals that resembled table salt or sugar. I was surprised that it dissolved to form a pretty pale blue solution.