Lectuur voor Benny's specialiteit... John ----------------------------------------- Henry Spencer wrote on 181113: > I'd never checked into the details of this, and got curious... Turns out that the magic phase to feed into Google is not "Controlled Goods" but "Restricted Components". As you might suspect from that terminology (and as Marcus indicated), the R.C. regulations are not about rocketry, but about illicit explosives manufacturing. In fact, they're very nearly entirely about ammonium nitrate, because of its known popularity for that purpose: there is a long section of rules specifically for AN, and a rather shorter section for other things. > The full list of RCs is: ammonium nitrate (solid) hydrogen peroxide, 30% and up nitromethane potassium chlorate, perchlorate, and nitrate sodium chlorate and nitrate (solids) nitric acid, 68% and up > No, AP is not on the list. Mixtures etc. aren't, only pure chemicals. Why some things are explicitly covered only as solids is not clear. Odd potassium chlorate/perchlorate are considered innocent. Of course some bigwig chemist can explain to me why ammonium is the culprit. Potassium per/chlorate do absolutely love sugar to go bang with. jd