It reacts with all metals except gold and platinum, forming sulfides. Sulfur is insoluble in water but soluble in carbon disulfide and, to a lesser extent, in other nonpolar organic solvents, such as benzene and toluene. The first and the second ionization energies of sulfur are 999.6 and 2252 kJ/mol, respectively. Sulfides, especially hydrogen sulfide (H2S), are quite soluble in water and are toxic to both humans and fish. A sulfur cycle exists which includes atmospheric sulfur dioxide (SO2), sulfate ions (SO22-) and sulfides (S-). Sulfur, nonmetallic chemical element, one of the most reactive of the elements. After precipitation it has a precipitate. Despite such figures, S 2+ is rare, with S +4 and S 6+ being more common. In contrast, specifications for water-soluble sulfates are not included as frequently (NBR 15,116, 2005; RILEM, 1994; WBTC 12, 2002). *Grams of gas dissolved in 100 g of water when the total pressure above the solution is 1 atm. Values for total compounds ranged from 0.003% (Tam and Le, 2007) to … They are produced under conditions where there is a lack of oxygen (anaerobic). Sulfur dioxide is less soluble in nonpolar solvents. It is easily soluble in water and has high solubility. Solubility Solubility is the property of a solid, liquid, or gaseous chemical substance called solute to dissolve in a solid, liquid, or gaseous solvent. The water-soluble sulphur black has a black powder appearance. Kaye and T.H. Pure sulfur is a tasteless, odorless, brittle solid that is pale yellow in color, a poor conductor of electricity, and insoluble in water. It is black after being dissolved in cold concentrated sulfuric acid and is diluted with sulfur dioxide. Laby, "Tables of Physical and Chemical Constants," 15th ed., Longman, NY, 1986, p. … The gas is soluble to the extent of 36 v/v water at 20 °C, but it is very soluble (several hundred v/v of solvent) in a number of organic solvents, eg, acetone, other ketones, and formic acid. The sodium hydroxide solution is blue-black and soluble in the alkali solution. Answer: SO2 ( Sulfur dioxide ) is Soluble in water What is Soluble and Insoluble ? The liquid is only slightly miscible with water. Research on sulfur compounds in RA shows that their presence is variable. Reference: G.W.C. Hydrogen sulfide is a colorless gas that can exist naturally in groundwater.