Salt

Salt

Introduction

 Salt are generally prepared by action between acid and base. Salt is a neutral substance which possesses neither acidic nor basic property nor it shows no effect on indicators such as litmus paper. Salts need high heat for melting and boiling. Electrolysis takes place in salty solution which means decomposition of an electrolyte by the passage of electric current.
Copper oxide is a metallic oxide (a salt) which, when treated with sulphuric acid produces copper sulphate or complete replacement of hydrogen of an acid by a metal or electropositive radical.
      H2SO4 + NaOH = NaHSO4 + H2O (partial replacement)
     H2SO4 + 2NaOH = NaHSO4 + 2H2O (complete replacement)
When salts are dissolved in water, these ionize giving positively and negatively charged ions other than hydrogen ion (H+) or, hydroxyl (OH) in solution. In some cases hydrogen and hydroxyl ions may also be present in addition to other positive or negative ions, the presence of which is essential characteristics of salt.

General methods of Preparation of salts:

1. All nitrates are soluble.
2. All salts of sodium, potassium and ammonium are soluble.
3. All carbonates are insoluble except sodium, potassium and ammonium carbonates.
4. All sulphates are soluble in water except for barium and lead sulphates which are insoluble and calcium sulphate which is only very soluble.
5. All chlorides are soluble in water except silver and lead chloride.

Some soluble salts are given below:

Chemical name
Molecular formula
Common name
Sodium chloride
Sodium carbonate
Sodium sulphate
Magnesium sulphate
NaCl
Na2CO3.10H2O
Na2SO4.10H2O
MgSO4.7H2O
Common salt
Washing soda
Glauber’s salt
Epsom salt
           

Some salts are insoluble in water. They have industrial importance. Insoluble salts are used to produce different colors. Some are listed below:

Common name of color
Molecular formula
Color produced
Lead sulphate
Copper carbonate
Lead carbonate
Zinc chromate
Titanium dioxide
PbSO4
CuCO3
PbCO3
ZnCrO3
TiO2
White
Green
White
Yellow
white

Uses of Salts:

Salt
Common name
Uses
Sodium carbonate
Potassium nitrate
Magnesium sulphate
Sodium chloride
Ammonium chloride
Washing soda
Saltpeter
Epson salt
Common salt
Softening water, making glass
Fertilizer, gunpowder
Medicine
Cooking
fertilizer
22 replies
  1. Seo master
    Seo master says:

    Hello Web Admin, I noticed that your site is very nice and very useful to students. I love your site and posts..
    keep updating…….. thank you for sharing……

    Reply
  2. naughtyboy
    naughtyboy says:

    Hi, i think that i noticed you visited my weblog so i came to return the favor?.I am trying to in finding issues to improve my
    website!I suppose its good enough to use a few of your concepts!!

    Reply
  3. yoga class
    yoga class says:

    I’m pretty pleased to discover this site. I wanted to thank you for
    ones time for this particularly fantastic read!! I definitely
    liked every bit of it and i also have you
    bookmarked to see new things in your blog.

    Reply
  4. top ten nutritious foods
    top ten nutritious foods says:

    Good day! I know this is kind of off topic but I was wondering if you knew
    where I could get a captcha plugin for my comment form?

    I’m using the same blog platform as yours and I’m having difficulty finding one?
    Thanks a lot!

    Reply
  5. skin apparent
    skin apparent says:

    Wow, this post is nice, my younger sister is analyzing such things, therefore I am going to
    convey her.

    Reply
  6. health and fitness expo
    health and fitness expo says:

    I am regular reader, how are you everybody?

    This paragraph posted at this site is truly pleasant.

    Reply
  7. Teresa
    Teresa says:

    Hi my name is Teresa and I just wanted to send you a quick note here instead of calling you. I came to your Acids Bases & Salts – Soluble & Insoluble Salts – Sodium Carbonate website and it is great post. Thank you

    Reply
  8. Cazare
    Cazare says:

    I have been surfing online more than 3 hours today, yet I never found any interesting
    article like yours. It’s pretty worth enough for me.
    Personally, if all web owners and bloggers made good content as
    you did, the net will be a lot more useful than ever before.

    Reply

Leave a Reply

Want to join the discussion?
Feel free to contribute!

Leave a Reply

Your email address will not be published. Required fields are marked *