Formaldehyde is a colorless, flammable, strong-smelling chemical that is used in building materials and to produce many household products.ormaldehyde is a colorless, flammable, strong-smelling chemical that is used in building materials and to produce many household products.
Actually most of the salts are insoluble in water. Not all the salts include chloride!!! And of those witch contain chloride, silver, led and mercury salts are insoluble!!! chemically speaking, not all salts are soluble in a particular solvent under normal conditions..
Confidence votes 4. Sulphates are usually soluble in water except for Ag2SO4, BaSO4, CaSO4 and PbSO4 (lead sulphate). Hope that helps (: PbSO4 is sparingly soluble in water, its solubility at 298K is about 1.4E-4 mol/L, a very small value. So its not insoluble, it just has a very small solubility.luminium sulfate is soluble in water up to 86g in 100ml of water This is when it will reach an equilibrium, and the water will be at a saturated state with Aluminium Sulfate â¦ .