A reagent is a chemical used to cause a chemical reaction with another substance. There are many examples of primary standards. For example, sodium hydroxide (NaOH) tends to absorb moisture and carbon dioxide from the atmosphere, thus changing its concentration. 448 West Fork Drive KHP does not absorb water or carbon dioxide, and it can provide visual confirmation that a 1-gram solution of NaOH really contains 1 gram. When KHP is used as a basimetric standard (e.g., in standardization of Perchloric Acid in Glacial Acetic Acid), Methyl Violet or Crystal Violet indicator is commonly used. To check the concentration of NaOH, a chemist must titrate a primary standard—in this case, a solution of potassium hydrogen phthalate (KHP). The most common include: A related term is secondary standard, a chemical that has been standardized against a primary standard for use in a specific analysis. Locate your product information quickly and efficiently. Potassium Hydrogen Phthalate (KHP) is a classic primary standard substance in that it is readily available in high purity; is relatively inexpensive; is easy to dry; is neither hygroscopic, oxidized by air, nor affected by Carbon Dioxide (thus making it easy to weigh out); does not undergo decomposition during storage; has a relatively high equivalent weight (thus reducing errors when weighed to 0.1 mg … In chemistry, a primary standard is a reagent that is very pure, representative of the number of moles the substance contains, and easily weighed. You have plenty of things to worry about... inspections, deadlines, budgets... RICCA Chemical Company is the premier choice for all your chemical needs. RICCA CHEMICAL COMPANY uses large quantities of KHP in the manufacture and quality control of its products. It might seem odd that a reagent is needed to establish the concentration of a chemical in solution. We offer products with the tightest specifications in the industry to make your work easier.

With our robust quality system, extensive product line and custom capabilities, RICCA Chemical Company has everything you need! She has taught science courses at the high school, college, and graduate levels. A typical acidimetric reaction is: Phenolphthalein Indicator is most commonly used in titrations where KHP is used as an acidimetric standard to standardize solutions of bases.

There are many examples of primary standards. Standard Definition and Examples in Science, Chemistry Vocabulary Terms You Should Know, Make Ammonium Nitrate from Household Chemicals, Acids and Bases: Titration Example Problem, Definition and Examples of Acid-Base Indicator, How to Make Homemade Lye Using Two Ingredients, EDTA (ethylenediaminetetraacetic acid) solutions, Ph.D., Biomedical Sciences, University of Tennessee at Knoxville, B.A., Physics and Mathematics, Hastings College, Has a high equivalent weight (to reduce error from, Is not likely to absorb moisture from the air (, Zinc powder, which can be used to standardize, Potassium hydrogen phthalate, or KHP, which can be used to standardize perchloric acid and an aqueous base in an acetic.

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