1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Luda [366]
3 years ago
8

What are four characteristics of a good extraction solvent?

Biology
1 answer:
ella [17]3 years ago
4 0

A good extraction solvent should have a strong solubilizing capability for the compound of interest, it should be immiscible or only weakly misciblewith the matrix solvent ( the first solution or mixture containing the compound from its natural source, e.g., water/ether. water/ chloroform, etc. If possible the extraction solvent should be non-flammable, non-toxic or of low toxicity, reasonably volatile, and of low eco-impact. Inexpensive and available, of high purity , and shelf stable. If one is determining the compound of interest by UV/Vis spectrophotometry or fluorescence, the solvent should have extremely low absobance or emission at the wavelength of analysis

• high solubility for the solute and low solubility for the carrier liquid.

• density difference vs. the carrier liquid greater than 150 kg/m. ...

• mid-level interfacial tension (5–30 dyne/cm)

• high resistance to thermal degradation.


You might be interested in
How do dung beetles help a carbon atom in animal dung to become part of a carbohydrate molecule within a plant?
Ber [7]

Answer:

Dung beetles lives in the animal dung and take nutrients from the undigested substances present in the dung. This dung is mixed with the soil by the beetle to increase the fertility of the soil. These nutrients is taken by plants with water through roots and makes their food in the form of carbohydrate from it in the process of photosynthesis. This carbohydrate is stored in different parts of plant body.

6 0
3 years ago
Read 2 more answers
Please help! Question>>>>>> Where is aggregate generally found?
riadik2000 [5.3K]

Aggergate is usually found in:

Floodplains

Alluvial fans

Mines

6 0
3 years ago
Read 2 more answers
One function of gel electrophoresis is to
KonstantinChe [14]
The answer is : A ) separate DNA fragments
6 0
3 years ago
*picture added*<br> does anyone know?
Sedaia [141]
I’m pretty sure it’s shale.
6 0
3 years ago
Carbon dioxide in the atmosphere traps heat. Scientists are concerned that too much carbon dioxide is being released into the ai
WITCHER [35]
Pollution control in the air
3 0
3 years ago
Other questions:
  • _____ is the closest relative to modern humans.<br> Cro-Magnon<br> Homo erectus<br> Neanderthals
    8·2 answers
  • Which cells in your body undergo cellular respiration?
    11·2 answers
  • human blood consists of blood A,B,and o. However, there is one more blood group, AB,which contains alleles A and B in the same g
    12·1 answer
  • How could you modify this experiment to show the effects of different wavelengths of light on the photosynthetic rate?
    5·1 answer
  • Which of these is LEAST LIKELY to cause the extinction of organisms?
    14·1 answer
  • 5. What types of genes change very slowly?
    6·2 answers
  • What’s the decay product of Uranium-238 and Rubidium- 87
    13·1 answer
  • Which is the method of estimating fish in a pond​
    7·1 answer
  • Which of the following correctly summarizes the path of olfaction?
    6·1 answer
  • Spiritual wellness is to posses a set of guiding beliefs, principles, or values that give meaning and purpose to your life.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!