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The main discussion of these abbreviations in the context of drug prescriptions and other medical prescriptions is at List of abbreviations used in medical prescriptions. Some of these abbreviations are best not used, as marked and explained here.
It is possible and technically acceptable to refer to the same parameter in different ways that may appear to suggest a variation in the standard required. For example, nitrite may be measured as nitrite ion or expressed as N. A standard of "nitrite as N" set at 1.4 mg/L equals a nitrite ion concentration of 4.6 mg/L.
Potassium nitrite (distinct from potassium nitrate) is the inorganic compound with the chemical formula K N O 2.It is an ionic salt of potassium ions K + and nitrite ions NO 2 −, which forms a white or slightly yellow, hygroscopic crystalline powder that is soluble in water.
The nitrite ion has the chemical formula NO − 2. Nitrite (mostly sodium nitrite) is widely used throughout chemical and pharmaceutical industries. [1] The nitrite anion is a pervasive intermediate in the nitrogen cycle in nature. The name nitrite also refers to organic compounds having the –ONO group, which are esters of nitrous acid.
Ultrapure water (UPW), high-purity water or highly purified water (HPW) is water that has been purified to uncommonly stringent specifications. Ultrapure water is a term commonly used in manufacturing to emphasize the fact that the water is treated to the highest levels of purity for all contaminant types, including: organic and inorganic compounds; dissolved and particulate matter; volatile ...
President-elect Trump called out the nation of Panama for the “exorbitant” fees it charges the United States — and threatened to demand control of the key commerce node.
How to watch College Football Playoff rankings show. Date: Tuesday, Nov. 26 Time: 8 p.m. - 9 p.m. ET TV: ESPN Stream: Fubo Watch the CFP rankings show with a Fubo subscription . When College ...
Distilled or purified water is used in humidors to prevent cigars from collecting bacteria, mold, and contaminants, as well as to prevent residue from forming on the humidifier material. Window cleaners using water-fed pole systems also use purified water because it enables the windows to dry by themselves leaving no stains or smears.