Does barium sulfate dissolve in dilute nitric acid?

Barium sulfate is an X-ray contrast agent. It can be mixed in different proportions or used alone to achieve a double contrast effect. It is often used in digestive tract contrast. Dilute nitric acid is a highly oxidizing and corrosive inorganic acid. It is often used to make fertilizers and explosives. So let's see if barium sulfate dissolves in dilute nitric acid.

First, is barium sulfate soluble in dilute nitric acid? Silver sulfate is a substance that is slightly soluble in water, while barium sulfate is a substance that is extremely insoluble in water (just compare the Ksp of the two). Therefore: the sulfate ion concentration in a saturated silver sulfate solution is much greater than the sulfate ion concentration in a saturated barium sulfate solution. When adding dilute nitric acid to the barium sulfate solution, even if hydrogen ions are introduced to react with sulfate ions to form bisulfate ions, the degree of ionization of the bisulfate ions is large enough, and the concentration of the ionized sulfate ions is still sufficient to keep the barium sulfate precipitate from dissolving.

Second, dilute nitric acid. Pure nitric acid is a colorless liquid with a pungent odor. Nitric acid solution is a colorless liquid; concentrated HNO3 is yellow because of the NO2 produced by the decomposition of HNO3. 2. Nitric acid has a low boiling point (83°C) and is volatile. It produces white mist when it comes into contact with water vapor in the air. 3. The nitric acid commonly used is 68% nitric acid, and the fuming nitric acid content is about 86%~97.5%. Properties of barium sulfate: odorless, tasteless powder. Soluble in hot concentrated sulfuric acid, almost insoluble in water, dilute acid and alcohol. The aqueous suspension is neutral to litmus paper. Density: 4.25-4.5 Melting point: 1580ºC Boiling point: 330ºC at 760 mmHg Decomposition temperature: >1600℃. It can also be made into suspensions of different proportions for use alone, but is usually used together with low-density gas to achieve the purpose of double contrast. It is commonly used in gastrointestinal tract imaging. According to reports from domestic users, uneven coarse and fine barium sulfate is better than fine and uniform barium sulfate. Use with caution in patients with certain intestinal diseases that are prone to intestinal fistula formation and perforation, such as appendicitis, diverticulum, ulcerative enteritis, parasitic infection, etc.

Is barium sulfate soluble in dilute nitric acid? Baso4 and AgCl are salts that can be said to be insoluble in any acid. This is true not only for dilute nitric acid, but also for dilute sulfuric acid and concentrated hydrochloric acid. . Here is the reaction equation for you: BaSO4+2HNo3=Ba(No3)2+2H2so4. This reaction equation must not occur.