Ba

KBrO₃

S₈

any soluble Ba-salt

Beautiful green light with barium bromate . Barium bromate is made, and a mix of this with sulphur is burned, giving a beautiful green flame color.

Ba

BaCO₃ (cheap pottery grade)

HCl (dilute, but fairly pure grade)

H₂O₂

Preparation of barium chloride from potteries grade barium carbonate. A procedure for making good grade barium chloride, suitable for chemical experiments and qualitative analysis, is presented in this webpage.

Ca

Ca (pure metal)

HCl (dilute)

Reaction between calcium and water - heat of reaction

CaCl₂

NaHCO₃

Explanation of what happens when hard water is heated. This experiment is a nice and safe demonstration and explanation of what happens when hard water is boiled.

Sr

SrCl₂ (or its hydrate)

Colored flames with metal salts. Metals salts are mixed/dissolved in ethanol, soaked in paper and ignited. One of the salts is strontium chloride.

Mg, Ag

AgNO₃

Mg (powder)

Water-initiated light and smoke . A mix of silver nitrate and magnesium powder is ignited with some water.

Mg, K

KOH

Mg (coarse powder)

tert-butanol

Aliphatic solvent, boiling around 220 C, free of aromatics

Synthesis of potassium from magnesium and potassium hydroxide . This is an interesting and also remarkable synthesis of potassium, which can be carried out at very mild conditions and which only requires reactants which are not really hard to obtain.

Mg, I

Mg (powder)

I₂

Na₂SO₃

Water-initiated violent reaction between magnesium and iodine. Magnesium and iodine are mixed, and a violent reaction is initiated by adding some water.