Reactive Grey K-B4RP - Names and Identifiers
Reactive Grey K-B4RP - Physico-chemical Properties
| Molecular Formula | C19H9ClN8O10S2.1/2Co.2Na
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| Physical and Chemical Properties | Dark gray powder. The solubility in water (50 ℃) is 50g/L. The aqueous solution is dark purple, and the addition of 1mol/L sodium hydroxide solution is still dark purple. After adding hydrosulfite and warming, it is light dark purple, and then adding sodium perborate is light yellow. It is purple in concentrated sulfuric acid and dark purple after dilution. It is purple in concentrated nitric acid and still purple after dilution. |
Reactive Grey K-B4RP - Introduction
Activated ash K-B4RP is a commonly used dehydrating agent, its chemical name is potassium hydroxide-boric acid reduced carbon. The following is a description of the nature, use, preparation and safety information of activated ash K-B4RP:
Nature:
-Reactive ash K-B4RP is a white to gray crystalline powder with high hygroscopicity.
-It can absorb moisture at room temperature, and the hydrate formed after moisture absorption is relatively stable, so it can maintain good moisture absorption in an environment with high relative humidity.
-It gradually dissolves in the air to produce a solution of potassium hydroxide and boric acid.
Use:
-Reactive ash K-B4RP are widely used in dehydration and drying operations in chemical laboratories.
-It can be used to remove the water in the reaction liquid and promote the progress of some chemical reactions.
-It can also be used to protect organic reagents, solvents and storage equipment from moisture and hydrolysis.
Preparation Method:
-The method of preparing activated ash K-B4RP is to mix boric acid and potassium hydroxide in an appropriate molar ratio, and heat the reaction at an appropriate temperature until the reaction is completed.
-After the reaction, the product is dried, crushed and screened to obtain the activated ash K-B4RP.
Safety Information:
-Reactive ash K-B4RP is a chemical substance that can corrode skin and eyes. Wear protective gloves, goggles and protective clothing when using it.
-avoid inhalation of its dust, should be used in a well-ventilated laboratory operation, and take effective protective measures.
-Do not mix the active ash K-B4RP with acidic substances to avoid violent reactions.
-Pay attention to prevent it from contacting with water during use, because it will quickly absorb moisture to form a corrosive solution.
When using activated ash K-B4RP, follow the relevant laboratory safety operating procedures and operate in accordance with the correct operating methods.
Last Update：2024-04-09 21:04:16