Acid Base Buffer Compounds

• Boric Acid
• Hydrochloric Acid
• Strong Ammonium Hydroxide
• Calcium Hydroxide
• Sodium Hydroxide

1.Boric Acid:-

Formula- H3BO3

Molecular Weight- 61.83 g/mol

Structure of Boric Acid- 

Boric Acid Also known as- 

Boracic Acid

Acidum Boricum Acid

orthoboric Acid

Preparation of Boric Acid:- 

Natural Source to get Boric Acid-

Sea Water

Certain Plant

Properties of Boric Acid-

• Colourless and white crystals
• Odourless
• Slightly Bitter in taste

Storage:- 

Well Close Container

Chemical Properties:-

Uses of Boric Acid:-

• local anti infective
• local antiseptic
• Eye lotion
• mouthwash
• Skin care

2. Hydrochloric Acid:-

Formula:- HCl

molecular weight:- 36.46g/mol

HCl also known as -

Muratic acid

Acidum Hydrochloricum

Spirit of Salt

Preparation of HCL:-

Properties of HCl:-

• Colourless
• Pungent Odour
• Change Blue Litmus into Red.

Neutralisation Reaction:-

Oxidation Reaction:-

Storage:-

Well Closed Container (not greater than 30°C)

Uses of hydrochloric acid (HCL) :-

Pharmaceutical Aid

Acidifying Agent

in case of achlorhydria

3. Strong Ammonium Hydroxide:-

Formula:- NH3

Molecular Weight:- 17.03g/mol

Preparation of strong ammonium hydroxide :-

1. Haber Process:-

2. By Distillation wing slaked Lime:-

also known as eight eight ammonia 

Properties of strong ammonium hydroxide :-

• Colourless Liquid
• Strongly Pungent Odour
• Miscible with water & alcohol
• Bitter In taste

Chemical Properties:-

Uses of strong ammonium hydroxide :-

• Pharmaceutical Preparation
• Alkalising Agent
• Reflux Simulant
• as an ingredient in aromatic spirit of ammonia.

4. Calcium Hydroxide:-

Formula:- Ca(OH)₂

Molecular Weight:- 74.10g/mol

Preparation of calcium hydroxide :-

Properties of calcium hydroxide :-

• it is soft white Power
• Slightly Bitter in Taste
• absorb carbon dioxide  to form calcium carbonate

Storage:-

Air Tight Container

Uses of calcium hydroxide :-

• As an Antacid
• As  a Astringent
• In the process of soda lime.
• Prevent clot formation in stomach

5. Sodium Hydroxide:-

Formula:- NaOH

molecular Weight:- 40g/mol

Synonym:-

Caustic soda

Preparation of sodium hydroxide:-

1. Sola Lime Process:-

2. Electrolysis of NaCl Solution:-

Properties of sodium hydroxide:-

• Dry hard brittle solid mass
• Strongly alkaline
• freely dissolve in water
• absorb carbon dioxide to form sodium carbonate

Uses of sodium hydroxide:-

• To remove Cuticle or warts
• 2.5% of solution use in Veterinary practise
• pharmaceutical aid
• preparation of soda lime.

Also Reas This :- short note on Acid Base Buffer

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