Analysis Of Ammonium Sulphate

Analysis of Ammonium Sulphate

Ammonium sulphate, a colorless crystal solid with the chemical formula (NH₄)₂ SO₄, has a rich history and diverse applications in various fields.

First synthesized in the 1800s, this inorganic salt is derived from ammonia and sulfuric acid and boasts versatility that has made it a fundamental element in multiple industries, ranging from agriculture to food production.

NH₃ + H₂SO₄ → (NH₄)₂SO₄

One of its primary uses is as a fertilizer, particularly valued in alkaline soils due to its ability to lower pH levels and increase the accessibility of nutrients for plants. By providing a vital source of nitrogen, essential for plant growth, ammonium sulphate aids in the healthy development of crops, ultimately resulting in increased yield and quality.

Its use spans across a wide range of crops, including cereals, vegetables, and fruit trees, showcasing its crucial role in sustainable agriculture.

Beyond its use in farming, it also plays a critical role in the food industry, serving as both a food additive and leavening agent. In baking, it enhances the color and texture of bread, resulting in a satisfying rise and a perfectly golden crust.

Also, in water treatment, it aids in the precipitation of impurities, purifying drinking water and ensuring consumer safety.

In the field of biochemical research, ammonium sulphate is an integral part of protein purification. Its ability to precipitate proteins at varying concentrations allows for the isolation of specific proteins for further study or pharmaceutical use. This application highlights the compound’s significance in advancing scientific understanding and innovation. From boosting agricultural productivity to its functions in food production and scientific research.

Ammonium sulphate serves as a testament to the extraordinary utility of chemical compounds. Its versatility and multifaceted nature make it a valuable resource in numerous sectors, supporting growth, promoting health, and driving innovation.

In Analysis (qualitative inorganic analysis) a step-by-step method is employed in detecting the cation (Ammonium ions) and anion (Sulphate ions) in the inorganic salt.

The Analysis of Ammonium Sulphate is part of the salt analysis and a schematic scheme is followed for the analysis of the given inorganic salt.

The analysis of Ammonium Sulphate to be written in a practical file is mentioned below

Test	Observation	Inference
Preliminary Test
Color	Colorless	Salts of Cu²⁺, Ni²⁺, Co³⁺, CrO₄ ^2- , Fe³⁺ etc. may be absent
	Ammonical odor	NH₄ ¹⁺ ions may be present
Dry Test:
Dilute Sulphuric acid test: Take 0.5 gm of Salt and then add Dilute H₂SO₄	No Effervescence of CO₂	CO₃ ^2- ions absent
Concentrated Sulphuric Acid Test: Take 0.5 gm of salt and then add Concentrated H₂SO₄ dropwise from the side of the test tube	No gas evolved	Cl^1-, Br^1-, NO₂ ^1-, CH₃COO ^1- ions absent
Barium Chloride Test: Take 0.2 gm of salt and add BaCl₂ Solution	White Crystalline ppt.	SO₄ ^2- Ions present
Confirmative test for Sulphate ions
BaCl₂ Test: Take 0.5 gm of Salt and add BaCl₂ Solution	White crystalline ppt. insoluble in dilute HCl	SO₄ ^2- Ions confirmed

The acidic radical present in the salt is SO₄ ^2– ion
Test for Basic radicals (Wet Test)
Solubility 2 gm of salt and add water	Clear solution (original Solution (O.S.))	Water soluble salt.
O.S. + Dilute NaOH Take 5 ml of O.S. and add Dilute NaOH solution if required heat gently	Ammonical odor	Group 1 Present NH₄ ¹⁺ ions present
Confirmative Test for NH₄ ¹⁺ ions
O.S. + Conc. NaOH	Strong Ammonical Odor	NH₄ ¹⁺ ions Confirmed
O.S. + Nessler’s Reagent	Yellow-orange ppt’s	NH₄ ¹⁺ ions Confirmed
The Basic radicals are NH₄¹⁺ ions
The Salt is (NH₄)₂ SO₄ (Ammonium Sulphate)

General

Analysis of Ammonium Sulphate