What is special purpose reagent chemicals?
Special-Purpose Reagent: chemicals that have been prepared for a specific application. Included among these are solvents for spectrophotometry and high-performance liquid chromatography. Select the best grade of chemical available for analytical work.
What is ACS grade in chemicals?
1. ACS Grade – Highest purity chemical grade, meeting or exceeding American Chemical Society standards. 2. Reagent Grade– A high purity grade, which is usually equal to the ACS grade. Reagent grade chemicals are generally suited for laboratory and analytical research.
What are laboratory grade chemicals?
Lab Grade Chemicals: These are commonly called UNILAB, Laboratory Reagent (LR Grade chemicals), or Chemically Pure (CP). You can find them in educational or teaching labs. If such reagents meet the specifications of the American Chemical Society Committee on Analytical Reagents, it will be denoted as AR (ACS).
What is the purpose of a reagent?
In analytical chemistry, a reagent is a compound or mixture used to detect the presence or absence of another substance, e.g. by a color change, or to measure the concentration of a substance, e.g. by colorimetry. Examples include Fehling’s reagent, Millon’s reagent, and Tollens’ reagent.
What is reagent grade water?
Reagent grade water (RGW) is water that is suitable for use in a specified procedure such that it does not interfere with the specificity, accuracy, and precision of the procedure. Process definitions alone (e.g. “RO”, “DI”, “Distilled”) do not in themselves adequately define required water quality.
What are the grades of chemicals?
Grades of Chemicals There are many different grading standards, but the three you are most likely to encounter are: reagent grade, laboratory grade, and technical grade. Of these, reagent grade is the most pure and technical grade is the least pure.
What is the purest grade of chemicals used in reagent preparation?
ACS grade
Reagent grade is generally equal to ACS grade (≥95%) and is acceptable for food, drug, or medicinal use and is suitable for use in many laboratory and analytical applications. USP grade meets or exceeds requirements of the United States Pharmacopeia (USP).