Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

Why hydrophobic sols are easily coagulated ?

Why hydrophobic sols are easily coagulated ?

Grade:12th Pass

2 Answers

Komal
askIITians Faculty 747 Points
5 years ago
(i) Lyophilic sols:
Colloidal sols that are formed by mixing substances such as gum, gelatin, starch, etc.
with a suitable liquid (dispersion medium) are called lyophilic sols. These sols are
reversible in nature i.e., if two constituents of the sol are separated by any means (such
as evaporation), then the sol can be prepared again by simply mixing the dispersion
medium with the dispersion phase and shaking the mixture.
(ii) Lyophobic sols:
When substances such as metals and their sulphides etc. are mixed with the dispersion
medium, they do not form colloidal sols. Their colloidal sols can be prepared only by
special methods. Such sols are called lyophobic sols. These sols are irreversible in
nature. For example: sols of metals.
Now, the stability of hydrophilic sols depends on two thingsthe
presence of a charge
and the salvation of colloidal particles. On the other hand, the stability of hydrophobic
sols is only because of the presence of a charge. Therefore, the latter are much less
stable than the former. If the charge of hydrophobic sols is removed (by addition of
electrolytes), then the particles present in them come closer and form aggregates,
leading to precipitation.
wearehiring
11 Points
5 years ago
We are hiring!!
 
Looking for :
 
-Bright 2015 pass out / Freshers, B.Tech/ Integrated courses (b.tech+m.tech) Mgt graduates( finance spl),
-across IIT's , IIIT's , IIM's & only Tier-I colleges
- ( 90% in 10th/12th ), 7+ CGPA grads/PG.
- intellectually smart, quantitatively strong professionals!
 
A.P.T Portfolio: We are the largest research based proprietary trading firms based out of Delhi. across geographies and deploy trading strategies which are based on statistical and algorithmic studies, offering the best of trading training, compensation and growth prospects!
Mail resumes at priyanka.khatterattherateaptportfoliodotcom if you meet the hiring criteria! 
 
Rgds,
HR – APT Portfolio

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free