Recent content by Mayhem

I mean salt for technical use, like for water softening (dish washers) or deicing, should be cheaper than food grade table salt.

Can't you use general purpose salt (non food grade) containing fewer additives. What does the salt used for dish washers contain aside from NaCl?

Why are you resorting to chemical means rather than simply poking holes? 0.3 mm is just aluminium foil?

Yes, because intelligent life wouldn't visit a planet where my in-laws reside.

Don't use SDS and similar date for solubility. They can be wildly inaccurate. A reaxys search shows that the solubility of the heptahydrate to be 29.77 wt% at 35 C. (E. L. Simons, 1951: https://doi.org/10.1021/ja01153a087) I indexed a Russian journal stating 27.47 wt% at 25 C, but I cannot...

"Why haven't aliens visited us?" For the same reason dolphins don't build rocket ships. Intelligent life is not necessarily curious life.

Please provide your reference. One must be very careful when interpreting enthalpy values.

Strictly speaking, Ca does not have a filled outer shell in the sense you are referring to. It has 2 e in the 4s orbital. Elemental Ca is also very reactive since losing these two electrons yields a full octet shell (3s 2 3p6). In the same row. If you go a few elements back, the noble gas Argon...

Saturate at 40 C, cool to r.t. under lid. Add water until dissolved or simply just filter and add 5% more water.

Since your solvent and your cocrystallized solvent are the same, you can just choose what you want to do. When specifying w/w%, writing the exact formulation of your solute is mandatory. If you specify a solution of MgSO4 * 7 H2O and actually use this salt to create your solution, then do not...

The water content does contribute to the final amount of water. But when you prepare a 1000 ml solution, you first dissolve the salt in a small amount of water and then adjust the total volume to 1000 ml. This accounts for any solvent contribution from the salt. If you are doing w/w%...

Hydration will only aid water dissolution (for example, anhydrous CrCl3 is practically insoluble in neutral water but its hexahydrate can allow 2 mol/L solutions) Unless otherwise stated (or apparent from context), assume solubility data is reported for the anhydrous salt.

Broadly, chemistry is the study of quantitative results through qualitative models. Spectroscopy, thermodynamics, and kinetics are largely interpreted through very simple models but they work in day-to-day experimental research. I find those who entertain the quantitative aspect rigorously for...

My advisor explained something to me related to a project involving transition metal complexes of EDTA-type chelators, and mentioned how it builds on the "Irving-Williams series, this really fundamental stuff" so fundamental is a dangerous word.

Define "fundamentals of chemistry".