Ethylenediaminetetraacetic acid disodium salt, also known as EDTA-2Na, is a good complexing agent in chemistry. The chemical formula is C10H14N2Na2O8, with a molecular weight of 336.206. It has six coordinating atoms and forms a complex called a chelate. EDTA is often used in coordination titration to determine the content of metal ions. EDTA has important applications in industries such as dyes, food, and pharmaceuticals.
Ethylenediaminetetraacetic acid disodium is an odorless or slightly salty white or milky white crystalline or granular powder, odorless and tasteless. It can dissolve in water but is extremely difficult to dissolve in ethanol. It is an important chelating agent that can chelate metal ions in solution. Preventing discoloration, deterioration, turbidity caused by metals and oxidative loss of vitamin C can also enhance the antioxidant properties of oils (trace metals such as iron and copper in oils promote oil oxidation).
Activated carbon is a carbonaceous adsorbent material with rich pore structure and huge specific surface area. It has the characteristics of strong adsorption capacity, good chemical stability, high mechanical strength, and easy regeneration. It is widely used in industry, agriculture, national defense, transportation, medicine and health, environmental protection and other fields.
This product is made from high-quality anthracite and charcoal as raw materials, processed using advanced techniques such as carbonization, activation, superheated steam catalysis, and appropriate binders. The appearance is black columnar particles. It has the advantages of developed pore structure, large specific surface area, strong adsorption capacity, high mechanical strength, easy regeneration, and low cost. Widely used in toxic gas purification, exhaust gas treatment, industrial and domestic water purification treatment, solvent recovery and other fields.
Vitamin C is a water-soluble vitamin, chemically named L - (+) - threitol 2,3,4,5,6-pentahydroxy-2-hexene-4-lactone, also known as L-ascorbic acid, with a molecular formula of C6H8O6 and a molecular weight of 176.12.
Vitamin C is usually a sheet-like, sometimes needle shaped monoclinic crystal, odorless, sour in taste, easily soluble in water, and has strong reducibility. Participating in the complex metabolic processes of the body can promote growth and enhance resistance to diseases. It can be used as a nutritional supplement, antioxidant, and wheat flour improver. However, excessive supplementation of vitamin C is not beneficial to health, but rather harmful, so it needs to be used reasonably. Vitamin C is used as an analytical reagent in the laboratory, such as a reducing agent, masking agent, etc.
PVC was once the world's largest general-purpose plastic in terms of production, with a wide range of applications. PVC comes in two types: hard (sometimes abbreviated as RPVC) and soft. Hard polyvinyl chloride is used for building pipes, doors and windows. It is also used to manufacture plastic bottles, packaging, bank cards, or membership cards. Adding plasticizers can make PVC softer and more elastic. It can be used for pipeline, cable insulation, flooring, signage, phonograph records, inflatable products, and rubber substitutes.
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