Sorbitol, also known as sorbitol. It is white hygroscopic powder or crystalline powder, flakes or granules, odorless. Depending on the crystallization conditions, the melting point changes in the range of 88~102℃, and the relative density is about 1.49. Easily soluble in water (1g dissolves in about 0.45mL water), slightly soluble in ethanol and acetic acid. It has a refreshing sweetness, the sweetness is about half that of sucrose, and its caloric value is similar to that of sucrose. According to the understanding of sorbitol supply: in the food industry, sorbitol liquid with a content of 69~71% is mostly used. Sorbitol liquid is a clear, colorless, syrupy liquid with a sweet taste, neutral to litmus, and miscible with water, glycerin and propylene glycol. Can be used as nutritive sweetener, humectant, chelating agent and stabilizer.
Sorbitolcan be used to produce environmentally friendly alkali etching agents for aluminum profile processing:
Sorbitol can complex with metal ions such as AL3+ to prevent their precipitation, and has certain mutual solubility with coatings. It is used to produce environmentally friendly alkali etching agents for aluminum profile processing.
Zinc dipping is a common method for special pretreatment of aluminum and its alloys, and it plays an important role in actual production. Adding sorbitol to the alkali etching solution before zinc immersion of aluminum and aluminum alloys can prevent the production of white aluminum hydroxide precipitation. Sorbitol can not only complex aluminum ions to inhibit precipitation, but also increase the viscosity of the alkali etching solution.
微信扫一扫打赏
