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18 March 2023

27 May 2022

30 March 2022

9 March 2022

2 March 2022

20 February 2022

11 September 2021

20 August 2021

  • 07:0107:01, 20 August 2021 diff hist −181 Guide to chemistryRemoved the "pH range, optimal pH" dichotomy, because it's misleading and, frankly, dangerous. If you're outside the optimal pH range, but inside the range in general, most of these chemicals *explode*. We don't want that. Don't even mention the explosion range, and especially don't give the explosion range like it's something to aim for.

30 July 2021

24 July 2021

2 May 2021

9 April 2021

25 December 2020