Can some one explain the principles involved in crystallization process of purification? What factors lead to the separation of impurities from solute?

Asked by Last Modified  

8 Answers

Learn Class IX-X Tuition

Follow 0
Answer

Please enter your answer

CHEMISTRY, STD-11/12 SCIENCE CHEMISTRY,B.SC-CHEMISTRY,M.SC-CHEMISTRY

Dear Akshay, Crystallization process takes place in 2 different steps: A. Nucleation B. Crystal growth For these, the basic requirement is that your sample should be super saturated .. for more info on this , call me.
Comments
Dislike Bookmark

Tutor

Crystallization is based on the principles of solubility: compounds (solutes) tend to be more soluble in warm and high temperature liquids (solvents) than they are in cold liquids. If a saturated high temperature solution is allowed to cool, the solute is no longer soluble in the solvent and forms crystals...
read more
Crystallization is based on the principles of solubility: compounds (solutes) tend to be more soluble in warm and high temperature liquids (solvents) than they are in cold liquids. If a saturated high temperature solution is allowed to cool, the solute is no longer soluble in the solvent and forms crystals of pure compound. Impurities are excluded from the growing crystals and the pure solid crystals can be separated from the dissolved impurities by filtration. molecular recognition is the principle of purification in crystallization.The main factors influencing solubility are, as we saw above: Concentration Temperature So we may identify two main families of crystallization processes: Cooling crystallization Evaporative crystallization read less
Comments
Dislike Bookmark

Maths point

Crystallisation is a separation technique that is used to separate a solid that has dissolved in a liquid and made a solution. The solution is warmed in an open container, allowing the solvent to evaporate, leaving a saturated solution. A solution that has as much solid dissolved in it as it can...
read more
Crystallisation is a separation technique that is used to separate a solid that has dissolved in a liquid and made a solution. The solution is warmed in an open container, allowing the solvent to evaporate, leaving a saturated solution. A solution that has as much solid dissolved in it as it can possibly contain is called a saturated solution. As the saturated solution is allowed to cool, the solid will come out of the solution and crystals will start to grow. The crystals can then be collected and allowed to dry. A solid that does not dissolve in a liquid can be separated by filtration. The size of crystals depends on the rate of cooling. Fast cooling will result in a large number of small crystals. Slow cooling will result in a smaller number of large crystals. read less
Comments
Dislike Bookmark

BIG BIOLOGY

Molecular recognition is the principle of purification in crystallization.The main factors influencing solubility and size , concentration and temperature. So we may identify two main families of crystallization processes: Cooling crystallization
Comments
Dislike Bookmark

Gold Medallist Mechanical Engineer

Crystallization is basically a property associated with pure substances. As Lakhshmi above clearly said that it is based on the principles of solubility: compounds (solutes) tend to be more soluble in warm and high temperature liquids (solvents) than they are in cold liquids. If a saturated high temperature...
read more
Crystallization is basically a property associated with pure substances. As Lakhshmi above clearly said that it is based on the principles of solubility: compounds (solutes) tend to be more soluble in warm and high temperature liquids (solvents) than they are in cold liquids. If a saturated high temperature solution is allowed to cool, the solute is no longer soluble in the solvent and forms crystals of pure compound. Impurities are excluded from the growing crystals and the pure solid crystals can be separated from the dissolved impurities by filtration. molecular recognition is the principle of purification in crystallization.The main factors influencing solubility are, as we saw above: Concentration Temperature So we may identify two main families of crystallization processes: Cooling crystallization Evaporative crystallization read less
Comments
Dislike Bookmark

Teaching for CBSE/ICSE class VI to X

Principle involved in crystallization process: 'every subsatace or compound wants to attain its natural state' provided it get a suitable envirinment (eg.temperature) . Factors lead to the separation of impurities from solute: 1. Concentration of solute in solution 2.Contineous heating to solution
Comments
Dislike Bookmark

Maths,science and others

crystallization process of purification follows the principle of molecular recognition .it says that each molecule or ion must fit perfectly into the lattice(crystal) as it leaves the solution and impurity wouldn't fit in the lattice
Comments
Dislike Bookmark

Home Tutor

if we go on adding sugar to water then a level will be reached beyond which no more sugar could be added. then we have to heat the mixture on stove. then we can dissolve more sugar. if we dissolve more sugar and allow it to cool then the extra sugar added after heating will no longer stay in dissolved...
read more
if we go on adding sugar to water then a level will be reached beyond which no more sugar could be added. then we have to heat the mixture on stove. then we can dissolve more sugar. if we dissolve more sugar and allow it to cool then the extra sugar added after heating will no longer stay in dissolved form but will separate from water. we will get pure crystals of sugar. this process is called crystallization. read less
Comments
Dislike Bookmark

View 6 more Answers

Related Questions

What are the local names of shifting cultivation in South East Asia?
In South Asia or S-E Asia the shifting cultivation has different names.. In India it is known as Jhooming in Srilanka it is known as Chenna nd in Malaysia it is know as Ladang (not lading)
Lavanya
0 0
9
What is sustainable development?
Sustainable development is the development of the society to meet the human development goals, and without compromising on the need to balance the ecosystem and the environment. It is essential to maintain...
Shiva
Where can I get the solved/unsolved question papers of previous years (of any board specifically CBSE) for 9/10th STD. Plz help. Thanks
please visit mycbseguide.com its very resourceful.
Baljeet Singh
What is Golden quadrilateral Super highways?
The Golden Quadrilateral is a highway network connecting many of the major industrial, agricultural and cultural centres of India. A quadrilateral of sorts is formed by connecting Chennai, Kolkata, Delhi and Mumbai, and hence its name.
Rakesh
Is human resource an artificial resource?
Man made resources are things made by man from natural resources and human resources are those created by man from natural resources
Sumit

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Fastest tricks Subtracting 2 Digit Numbers
Step 1: Let us consider subtraction of two 2digit numbers 36 from 62. Step 2: Now, split the values 62 and 36 as follows: 6 / 2 3 / 6 Step 3: Now, perform simple subtraction between the numbers written...

Debraj Paul

0 0
0
Is DNA repair enzyme tyrosyl DNA phosphodiesterase 1(TDP1) is a co-target with human DNA topoisomerase I in anticancer therapy?
DNA topoisomerase I (Top1) regulate DNA supercoiling both in the nucleus and mitochondria to enable reliable transmission of our genetic information to the offspring. However, Top1 are toxic when trapped...

Durgapada Rana

0 0
0
What is weight?
Weight is a form of measurement that is dependent on gravity and, unlike mass, your weight can vary depending on where you are in the universe. Weight is a pretty important measure not only to dieters...

Debraj Paul

3 0
0
Lens and Its types.
A lens is a piece of transparent glass bounded by two spherical surfaces. It is of two main types. Concave Lens: A lens having both of its surfaces curved inwards is called as a concave lens. It is thin...

Debraj Paul

0 0
0
Square Of a Number Ending In 5
Let's say we want to get the square of 35 i,e 35 x 35, Take the first no ie 3,take the next number i,e 4, Multiply 3 and 4 ie 3 x 4 = 12, Place 25 after 12, So, the answer is 1225, Lets try some more, 75...

Sachidananda R.

0 0
0

Recommended Articles

Meet Swati, a Hindi Tutor from Bangalore

Swati is a renowned Hindi tutor with 7 years of experience in teaching. She conducts classes for various students ranging from class 6- class 12 and also BA students. Having pursued her education at Madras University where she did her Masters in Hindi, Swati knows her way around students. She believes that each student...

Read full article >

Quest Academy - Institute of the month

Quest Academy is a professional Bangalore based NEET and JEE (Main + Advanced) training institute. The academy was incorporated in 2015 to cater to the needs of students, who aim to crack competitive exams by connecting with the best brains around. The institute helps students enhance their skills and capabilities through...

Read full article >

Meet Raghunandan.G.H, a B. Tech Tutor from...

Raghunandan is a passionate teacher with a decade of teaching experience. Being a skilled trainer with extensive knowledge, he provides high-quality BTech, Class 10 and Class 12 tuition classes. His methods of teaching with real-time examples makes difficult topics simple to understand. He explains every concept in-detail...

Read full article >

Meet Mohammad Wazid, a skilled trainer for...

Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...

Read full article >

Find Class 10 Tuition near you
Class 10 Tuition in Delhi
Class 10 Tuition in Bangalore
Class 10 Tuition in Hyderabad
Class 10 Tuition in Kolkata
Class 10 Tuition in Chennai
Class 10 Tuition in Mumbai
Class 10 Tuition in Pune
Class 10 Tuition in Noida
Class 10 Tuition in Lucknow
Class 10 Tuition in Gurgaon
Online Tuition Class 10

Looking for Class 10 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you