Is barium sulfite a precipitate?

Barium sulfite is a cubic crystal, but its color is diverse, such as sometimes light gray and yellow-green, etc. In industrial use, it is mainly light brown or black powder, which is very helpful for making barium salts, luminous paints, rubber vulcanizers, etc. Barium sulfite can also be used for papermaking. Many people think that barium sulfite is a precipitate, so is barium sulfite a precipitate?

First, is barium sulfite a precipitate? Yes, it is a precipitate. Calcium sulfite is insoluble in water with a solubility of 0.0043 g/100 mL. Calcium sulfite (CaSO3) is a sulfite with reducing properties and can be used as a bleaching agent. Chemical properties and uses: Decomposes in acid, releasing toxic sulfur dioxide gas. It is used to make calcium plastic materials, and is also used as a bleaching and dechlorination agent for cellulose products, a food preservative, a fermentation bactericide, etc. Preparation method: Use calcium chloride and sodium sulfite to carry out double decomposition reaction in solution, filter, isolate from air and dry to obtain anhydrous CaSO3 solid. (Equation: Na2SO3+CaCl2=CaSO3↓+2NaCl). It can also be obtained by chemical reaction of sulfur dioxide and calcium hydroxide. (Chemical reaction equation: SO2+Ca(OH)2=CaSO3↓+H2O).

Second, barium sulfite, white equiaxed cubic crystals, sometimes light gray or yellow-green, and industrial products are light brown or black powder. It is mainly used in the manufacture of barium salts, lithopone and luminous paints, and is also used as a rubber vulcanizer and leather depilatory agent. Also used in papermaking. Chemical properties: Decomposes under heat to produce toxic sulfur dioxide gas. Odorless. Gradually oxidizes to barium sulfate in the air. [2] Category: Corrosive items. Toxicity rating: Highly toxic. Acute toxicity: Oral-rat LD50: 375 mg/kg. Hazard characteristics of explosives: Potential explosive. Flammability and hazard characteristics: It will spontaneously ignite when exposed to acid mist or moist air, releasing flammable and toxic hydrogen sulfide gas; combustion will produce toxic sulfur oxides and barium-containing fumes [4]. Solubility: Slightly soluble in water, insoluble in alcohol, soluble in dilute HCl. The solubility in water is 0.016 g/100 mL, [5] and 0.0197 g/100 g H2O at 20°C. [2] Ksp=5.3×10^-7. Ecological data: This substance may be harmful to the environment and special attention should be paid to water bodies.

Is barium sulfite a precipitate? The answer is yes. It is mainly used as a raw material for the manufacture of various barium salts and lead powder; it is also used as a rubber vulcanizing agent and a leather depilatory agent. Used to generate hydrogen sulfide in analytical chemistry. Used as acaricide and fungicide in agriculture. [6-7] Papermaking has reducing properties: 2BaSO3+O2=2BaSO4