Potassium Hydrogen Phthalate Extrapure AR, 99.9% is slightly acidic, and it is often used as a primary standard for acid–base titrations because it is solid and air-stable, making it easy to weigh accurately.
Potassium Hydrogen Phthalate Extrapure AR-is slightly acidic, and it is often used as a primary standard for acid–base titrations because it is solid and air-stable, making it easy to weigh accurately.
Hydrofluoric Acid AR/ACS 48% is colorless ,acidic and highly corrosive. This acid is widely used for oil refining process and for removing oxide impurities from stainless steel.
Xylene Extrapure AR, 99.8%, is a high-purity aromatic hydrocarbon solvent widely used in laboratories for analytical and research purposes. With a purity of 99.8%, it meets the standards for Analytical Reagent (AR) grade, making it ideal for precise scientific applications. It is commonly used as a solvent in chemical reactions, sample preparation, and chromatography.
Glycerol (Glycerine) Anhydrous Pure, 99%, is a highly pure form of glycerin with a 99% concentration and devoid of water content (anhydrous). It is a colorless, odorless, and viscous liquid known for its moisturizing and emollient properties. Often used in cosmetics, pharmaceuticals, and food industries, it acts as a humectant, solvent, and sweetening agent. Due to its purity, it is particularly suited for applications requiring minimal impurities and high effectiveness.
The invention relates to a method for producing calcium chloride dihydrate, which is characterized by comprising the following steps: putting hydrochloric acid (31%) and limestone powder into a reaction vat according to the mixture ratio of 2.2:1, and stirring for reaction to generate an acid calcium chloride solution; …
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