Types of Laboratory Water

What is the primary use of Type I Water in laboratories?

Tests requiring minimum interference, such as trace metal and enzyme analyses

Which type of water is acceptable for glassware washing and filling autoclaves, but not for analysis or reagent preparation?

Type III Water

How is distilled water purified?

By boiling and vaporizing water

What does dilution involve?

Adding more solvent to a solution Signup and view all the answers

Which component of a solution is present in the greatest amount?

Solvent Signup and view all the answers

What is the definition of a dilute solution?

A solution with relatively little solute or lower solute concentration per volume of solvent Signup and view all the answers

What is a reagent?

A compound or mixture added to a system to cause a chemical reaction Signup and view all the answers

What does 'AR' stand for in Chemical Analytical Reagent (AR)?

Analytical Reagent Signup and view all the answers

What is the key characteristic of a sample that is important for analytical laboratory analysis?

The representativeness of the sample compared to the bulk system Signup and view all the answers

Which organization established specifications for AR grade chemicals?

American Chemical Society (ACS) Signup and view all the answers

What is the purpose of ultrapure water in laboratory procedures?

To ensure accuracy in analytical measurements Signup and view all the answers

What is a colligative property of a solution?

Freezing point depression or boiling point elevation based on solute concentration Signup and view all the answers

What is the main purpose of using ultrapure chemicals in analytical chemistry?

To meet the requirements of specific techniques that demand extremely pure chemicals Signup and view all the answers

Which water type has some or all ions removed, typically from previously treated water like prefiltered or distilled water?

Deionized Water Signup and view all the answers

What process is used to produce reverse osmosis water?

Using pressure to force water through a semipermeable membrane Signup and view all the answers

What is the key characteristic of reagent grade water?

Uniform preparation and no stated impurity limitations Signup and view all the answers

Which type of water is typically used for procedures that require extremely pure chemicals like chromatography?

Deionized Water Signup and view all the answers

What does the term 'chemically pure / pure grade' indicate about the impurity limitations of the chemicals?

There are no stated impurity limitations Signup and view all the answers