What is KIO3 in chemistry?
What is KIO3 in chemistry?
Potassium iodate | KIO3 – PubChem.
Is KIO3 dangerous?
Danger! Strong oxidizer. Contact with other material may cause a fire. May cause severe eye, skin and respiratory tract irritation with possible burns.
Is KIO3 an acid or base?
Chemical Properties of Potassium Iodate – KIO Potassium iodate combines with potassium iodide in the presence of strong acid like sulfuric acid forms potassium sulfate, iodine and water.
What is the equivalent weight of KIO3?
| Potassium Iodate | |
|---|---|
| Chemical Formula | KIO3 |
| Formula Weight | 214.00 |
| Equivalent Weight (in moderately acidic solution) | 35.67 (Molar = 6 Normal)* |
| Equivalent Weight (in strongly acidic solution) | 53.50 (Molar = 4 Normal) |
Why KIO3 is used as a primary standard?
Potassium Iodate is an oxidizing agent and a good primary standard with the one drawback of having a relatively low equivalent weight. It is used primarily as a stable source of Iodine, which is liberated in the presence of Iodide ion and acid, in the titration of Thiosulfate and Sulfite solutions.
What is the equivalent weight of Na2S2O3?
What is the equivalent weight of sodium thiosulphate? The weight equivalent is the gram molecular weight divided by the number of electrons lost or obtained by each molecule; this is (248.17/1) g for sodium thiosulfate (Na2S2O3. 5H2O).
What is the formula of thiosulphate?
Na2S2O3
Is Na2S2O3 a pure compound?
Sodium thiosulfate (sodium thiosulphate) is an inorganic compound with the formula Na2S2O3xH2O. Typically it is available as the white or colorless pentahydrate, Na2S2O3·5H2O….Sodium thiosulfate.
| Names | |
|---|---|
| Chemical formula | Na 2S 2O 3 |
| Molar mass | 158.11 g/mol (anhydrous) 248.18 g/mol (pentahydrate) |
| Appearance | White crystals |
| Odor | Odorless |
What is the principle of iodometric titration?
The Basic Principle of iodometric titration is to determine the concentration of an oxidising agent in solution. iodometry involves indirect titration of iodine liberated by reaction with the analyte.In an iodometric titration, a starch solution is used as an indicator since it can absorb the I2 that is released.
Which indicator is used in non aqueous titration?
Crystal voilet
Why is acetic anhydride used in non aqueous titration?
Another important feature of acetic anhydride as a co-solvent (or reagent) for the titration of pharmaceutical compounds is that it enables the direct non-aqueous titration of halide salts (mainly hydrochlorides) of organic bases and quaternary ammonium salt-type drugs.
What should be avoided in non aqueous titration?
Non- aqueous titrations are the titrations in which weakly acidic or basic substances are carried out using non–aqueous solvents to get sharp end point. The moisture content in non–aqueous titrations should not be more than 0.05%. Moisture and carbon dioxide are to be avoided in non– aqueous methods.
Why water is not used in non aqueous titration?
Non Aqueous Titration Theory The need for non-aqueous titration arises because water can behave as a weak base and a weak acid as well, and can hence compete in proton acceptance or proton donation with other weak acids and bases dissolved in it.
Which drug is determined by Acidimetric non aqueous titration?
and sulfa drugs in various pharmaceutical preparations by acidimetric titration in non- aqueous solution. The sample is simply dis- solved in DMF and titrated with 0.1 N sodium methoxide, using thymol blue indicator. The end point is marked by a sudden vivid change from yellow to blue.
What is mean by non aqueous titration?
Non aqueous titration refers to a type of titration in which the analyte substance is dissolved in a solvent which does not contain water.
Which of the following is non-aqueous solvent?
Asseration: Liquid HF is used as non-aqueous solvent and many acid-base reactions occur in this solvent system.
What is the formula of a non aqueous solvent?
BrF2+ + BrF.
Why liquid ammonia is a non aqueous solvent?
H-Bonding exists between the molecules of Ammonia but extent is very less as compare to the H-Bonding of water molecules. As a result liquid ammonia has the ability to dissolve compounds which are non polar in nature such as organic compounds. But it acts as poor solvent for the ionic compounds as compare with water.
Why is salt a solute?
It contains about 3 percent sodium chloride. Ocean water is the type of mixture called a solution, because the salt is dissolved in the water. Water is the solvent, and sodium chloride is the solute. Water dissolves salt when water molecules attract and pull apart the sodium and chloride ions in salt crystals.