4 comments by Phillip
Hydrazine is used extensively in the water treatment market as an oxygen scavenger although erythorbates are replacing it in some applications.
Robert, the flammability problem can be solved by using PEG300 instead of alcohol. I have used this for about 30 years now.
My school experience regarding chemistry could not have been better. I was give apparatus to take home and even an analytical balance. The local chemist (now pharmacists) would obtain any chemical I asked him for and obviously subsidised by meager pocket money.
In my industry (water analysis test kits) titrimetric methods outnumber other methods such as electro-chemistry and colorimetric (comparator or photometer) roughly 4:1 They are simple to understand and can be modified to take into account the required level of accuracy (drop tests to micro-titrators).