Shaving cream By Mohan kumar..

BY INDUSTRIAL CHEMISTRY EXPERT [MOHAN KUMAR JHA]

SHAVING CREAM :: Shaving cream is a substance that is applied to the face or wherever else hair grows, to provide lubrication and avoid razor burn during shaving. Shaving cream is often bought in a spray can, but can also be purchased in tubs or tubes. Shaving cream in a can is commonly dispensed as a foam or a gel. Creams that are in tubes or tubs are commonly used with a shaving brush to produce a rich lather (most often used in wet shaving).

About Fermentation ...

BY INDUSTRIAL CHEMISTRY EXPERT [MOHAN AND HEMANT..]

THANKS FOR READING,,,,

CHAIN SILICATES PYROXINE BY MOHAN JHA..

CHAIN SILICATES PYROXINE....

By : SUBHASH MOHAPATRA[ Ph.D  INORGANIC.]

Formed by sharing of 0 atoms on 2 corners of each tetrahedron with octahedral giving the formula (si03)n 2n-

..A large number of minerals from chain but variety of different structure are formed because the arrangement of Td in space may vary and thus affect the repeat distance along the chain.

e.g spodurene LIAL[(sio3)2] ,enstalite mg2[(sio3)2] and diopsite pamg[(sio3)2] wollastonic ca3[(sio3)3] has a repeat unit of 3 tetrahedron while others may have 4,5,6,7,9 & 12 Td..

Double chains may be formed when a simple chain are joined together by sharing oxygen. These minerals are called amphiboles and are well known.

These are several ways of forming double chains, giving (si2o5)n 2n-  ,(si4o11)n 6n- , (si6o17)n 10n-  and others..

Asbestos minerals are the best known amphiboles based on the structural unti (si4o11)n 6n-.

In these the tetrahedral may share 2 or 3 corners.

e.g tremolite ca2mg5[(si4o11)2](oh)2

crocidolite na2fe3’’’fe2’’’[(si4o11)2](oh)2

They contain hydroxyl group..which are attached to metal ions.

The si-o bonds are strong and directional . adjacent chains are held together by the metal ions present.

Thus the pyroxene and amphiboles cleavage readily parallel to the chains ,forming fibres... they are called fibrous minerals..

The cleavage angle for pyroxene is 89 degree and for amphiboles is 56 degree.

This is used as a means of identifying the minerals.

Asbestos minerals come from 2 different groups of silicates.

1.       The amphiboles 2. The sheet silicates.

2.       The amphiboles includes crocidolite(formula above by mohan) –blue asbestos and others derived from  it by isomorhopus replacement e.g amosite/brown..

WE FURTHER TELL YOU ABOUT SILICATES INDUSTRY WITH DIFFERENT FORM...

THANKS FOR READING...BY MOHAN KUMAR AND HEMANT UNIYAL....

The concept of reaction rates By Mohan & hemant..

BY INDUSTRIAL CHEMISTRY EXPERT [MOHAN KUMAR JHA]