Formula: CrC2O4. The most significant observation was that even a small dose of <0.5 grains (≈30 mg) given by mouth caused, at first, an increase in arterial blood pressure, followed by a moderate decrease. The name of the compound with the formula KNO 2 is potassium nitrite. How do you think about the answers? Formula: KNO2.6H2O. They compared the biological action of potassium nitrite with that of amyl and ethyl nitrites and concluded that the similarity of action depends on the conversion of organic nitrites to nitrous acid. This method is quite popular within the field of chemistry. KNO2 is also known as potassium nitrite. - Definition & Examples, General Studies Earth & Space Science: Help & Review, General Studies Health Science: Help & Review, Human Anatomy & Physiology: Help and Review, CSET Science Subtest I - General Science (215): Practice & Study Guide, UExcel Anatomy & Physiology: Study Guide & Test Prep, Introduction to Environmental Science: Help and Review, Middle School Life Science: Homework Help Resource, Middle School Life Science: Tutoring Solution, Biological and Biomedical With larger doses, pronounced hypotension ensued. Interest in a medical role for inorganic nitrite was first aroused because of the spectacular success of organic nitrites and related compounds in the treatment of angina pectoris. Create your account. Potassium nitrite reacts at an extremely slow rate with a liquid ammonia solution of potassium amide at room temperatures, and in the presence of ferric oxide or cobaltic oxide, to form nitrogen and potassium hydroxide. In... What combination of atoms are involved in KCl? Formula Mass of a Compound: Definition & Formula, What is a Chemical Equation? It is composed of a potassium cation, and a nitrite anion ion. Potassium nitrite (distinct from potassium nitrate) is the inorganic compound with the chemical formula KNO2. It is composed of a potassium cation, and a nitrite anion ion. It is composed of a potassium cation, and a nitrite anion ion. Trending … Join Yahoo Answers and get 100 points today. Potassium nitrite | KNO2 | CID 516910 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, … As a treatment for angina, the reduction of circulating blood by venesection was inconvenient. Potassium nitrite is used in the manufacturing of heat transfer salts. Trending Questions. This compound should not be confused with KNO3, potassium nitrate. From 650 °C to 750 °C, as the case of decomposition of potassium nitrate is, the system attains equilibrium. He heated potassium nitrate at red heat for half an hour and obtained what he recognized as a new “salt.” The two compounds (potassium nitrate and nitrite) were characterized by Péligot and the reaction was established as 2KNO3 → 2KNO2 + O2. K is the chemical symbol for potassium, and it can be found on the periodic table... See full answer below. What is the name of the compound with the formula KNO2? [3], Potassium nitrite forms potassium nitrate when heated in the presence of oxygen from 550 °C to 790 °C. 1 decade ago. Like other nitrite salts such as sodium nitrite, potassium nitrite is toxic if swallowed, and … It is an ionic salt of potassium ions K+ and nitrite ions NO2−, which forms a white or slightly yellow, hygroscopic crystalline powder that is soluble in water. perchloric acid. 1 decade ago. No external energy is used and the reactions are carried out with a small amount of O2. 0 0. There will be a fixed ratio for a chemical compound determining the composition of it. [2], The effect of potassium nitrite on the nervous system, brain, spinal cord, pulse, arterial blood pressure, and respiration of healthy human volunteers was noted, as was the variability between individuals. Become a member to unlock this This compound should not be confused with KNO3, potassium nitrate. Source(s): compound hclo4: Explain how the formulas for H_2O and NaCl provide... Let P = f(t) give the US population in millions in... Write the chemical formulas for the compounds... A compound contains 'N' and 'O' atom. Services, What is a Chemical Formula? Scientists have developed systems to help name ionic molecules and covalent compounds so that individuals can write down a simple formula without writing out the full name. [8], InChI=1S/K.HNO2/c;2-1-3/h;(H,2,3)/q+1;/p-1, InChI=1/K.HNO2/c;2-1-3/h;(H,2,3)/q+1;/p-1, Except where otherwise noted, data are given for materials in their, Australia New Zealand Food Standards Code, "Therapeutic Uses of Inorganic Nitrite and Nitrate", "Current EU approved additives and their E Numbers", "Listing of Food Additives Status Part II", "Standard 1.2.4 - Labelling of ingredients",, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, 440.02 °C (824.04 °F; 713.17 K) (decomposes), This page was last edited on 17 August 2020, at 20:16. berylliumchloride[dihydrate] potassiumnitrite[hexahydrate] 0 0. b.Potassium Nitrite hexahydrate. Furthermore, the fact that potassium nitrite is highly soluble in water makes the solid difficult to recover. Pain associated with an anginal attack disappeared rapidly, and the effect lasted for several minutes, generally long enough for the patient to recover by resting. Therefore, he decided to try the effect on a patient of inhaling amyl nitrite, a recently synthesized compound and one that his colleague had shown lowered blood pressure in animals. Rajchem. This compound should not be confused with KNO3, potassium nitrate. Answer and Explanation: The chemical name of the given chemical compound is shown below, (a) SnF4 Sn F 4 - The chemical name of this chemical compound is Tin (IV) fluoride. [2] The pure form of nitrite was first made by the Swedish chemist Carl Wilhelm Scheele working in the laboratory of his pharmacy in the market town of Köping. At 790 °C, a rapid decrease in volume is first observed, followed by a period of 15 minutes during which no volume changes occur. Name: Potassium Nitrite Hexahydrate. At 550 °C and 600 °C the reaction is continuous and eventually goes to completion. compound name of HClO4? perchloric acid. - Definition & Effects, The Periodic Table Lesson for Kids: Structure & Uses, Laws of Chemical Combination: Overview & Explanation, What Are Free Radicals? All rights reserved. Get your answers by asking now. What is the formula for mercury(I) chloride? They also noted that potassium nitrite, however administered, had a profound effect on the appearance and oxygen-carrying capacity of the blood. Source(s): my wonderful chem teacher :) 2 0. Fusion with ammonium salts results in effervescence and ignition. Sciences, Culinary Arts and Personal Nitrite is present at trace levels in soil, natural waters, plant and animal tissues, and fertilizer. a. Beryllium chloride diahydrate. Potassium nitrite is the inorganic compound with the chemical formula KNO2. 1 decade ago. When reacting with acids, potassium nitrite forms toxic nitrous oxides. Gloves and safety glasses are usually used when handling potassium nitrite. [8], Potassium nitrite is stored with other oxidizing agents but separated from flammables, combustibles, reducing agents, acids, cyanides, ammonium compounds, amides, and other nitrogenous salts in a cool, dry, well ventilated location. Alias: Chromous Oxalate. [2], Solutions of acidified nitrite have been used successfully to generate NO and to induce vasorelaxation in isolated blood vessel studies, and the same reaction mechanism has been proposed to explain the biological action of nitrite.[2]. Reactions with reducing agents can result in fires and explosions.