HOW TO PREPARE 30 ML OF AMMONIUM ACETATE SOLUTION

FORMULA :

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  GLACIAL ACETIC ACID : 13.59 GRAMS.


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  AMMONIUM BICARBONATE : 14.10 GRAMS.


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  STRONG SOLUTION OF AMMONIA : 3.00 ML.


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  DISTILLED WATER : 30.00 ML.

THEORY :

a solution is a HOMOGENEOUS MIXTURE composed of two or more substances. In such a mixture, a solute is dissolved in another substance, known as a SOLVENT. A common example is a SOLID, such as SALT or SUGAR, dissolved in WATER, a LIQUID. GASES may DISSOLVE in liquids, for example, CARBON DIOXIDE or OXYGEN in water. Liquids may dissolve in other liquids. Gases can combine with other gases to form mixtures, rather than solutions. All solutions are characterized by interactions between the solvent phase and solute molecules or ions that result in a net decrease in free energy. Under such a definition, gases typically cannot function as solvents, since in the gas phase interactions between molecules are minimal due to the large distances between the molecules. This lack of interaction is the reason gases can expand freely and the presence of these interactions is the reason liquids do not expand.Solutions should be distinguished from non-homogeneous mixtures such as COLLOIDS and SUSPENSIONS.

PROCEDURE :

FIRST TAKE THE DISTILLED WATER IN A BOROSIL BEAKER AND THEN POUR GLACIAL ACETIC ACID IN IT AND MIX IT WELL. AFTER MIXING WELL INSERT AMMONIUM BICARBONATE GENTLY. AFTER MIXING THE SOLUTION WILL APPEAR COOL AND FEEL COOL WHEN TOUCHING LOWER PORTION OF BEAKER. WHEN AMMONIUM BICARBONATE CRYSTALS ARE DISSOLVED COMPLETELY IN THE SOLUTION THEN ADD STRONG SOLUTION OF AMMONIA DROP BY DROP. AFTER DOING ENTIRE PROCESS YOUR SOLUTION WILL BE READY.

HAZARDS :

MAY CAUSE IRRITATION TO SKIN, EYES, AND RESPIRATORY TRACT. MAY BE HARMFUL IF SWALLOWED.

HANDLING AND STORAGE :

Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. Isolate from incompatible substances. Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.

USE :

Laboratory Reagent.