Why we are using only KBr in IR spectrometer why not KCl

Answers were Sorted based on User's Feedback



Why we are using only KBr in IR spectrometer why not KCl..

Answer / keshava

KBr gives better resolution than KCL...

Is This Answer Correct ?    36 Yes 7 No

Why we are using only KBr in IR spectrometer why not KCl..

Answer / ramkrishna thakare

KBr shows Absorbance in 2.4 -16 MICROMETER of IR REGION.
While other compound shows Transmittance in 2.4 -16
MICROMETER of IR REGION. & hence resolution is not achieved .

& for the purpose of resolution & background correction KBr
is the best option.


Ramkrishna thakare -------sandoz

Is This Answer Correct ?    17 Yes 1 No

Why we are using only KBr in IR spectrometer why not KCl..

Answer / ramalaxmi ch

KBR can not absorbance in IR region. and it is a primary standard.
KBR does not catch the moisture easy better than KCL
KBR STABLE also

Is This Answer Correct ?    10 Yes 2 No

Why we are using only KBr in IR spectrometer why not KCl..

Answer / g.balaji

KBr could not have any absorbance in IR range,but Kcl have
absorbance

Is This Answer Correct ?    15 Yes 11 No

Why we are using only KBr in IR spectrometer why not KCl..

Answer / ravi.a

KBr could not have any absorbance in IR range,but Kcl have
absorbance and itis easily miscible with other samples for
analysis it is cheep and best available in market

Is This Answer Correct ?    7 Yes 3 No

Why we are using only KBr in IR spectrometer why not KCl..

Answer / jayalakshmi

KBr is optically transparent over the range of wavelengths
in the wavelength range of IR analysis. This means KBr does
not have any absorbance in IR region.

Is This Answer Correct ?    5 Yes 1 No

Why we are using only KBr in IR spectrometer why not KCl..

Answer / manoj patel

KBr gives better resolution than KCL...
KBr could not have any absorbance in IR range
Kbr coild not interference with other compounds in IR Range.

Is This Answer Correct ?    4 Yes 1 No

Why we are using only KBr in IR spectrometer why not KCl..

Answer / naresh

Kbr is ir inactive

Is This Answer Correct ?    2 Yes 0 No

Why we are using only KBr in IR spectrometer why not KCl..

Answer / paresh jobanputtra

Actuly alkli halide are used for this perpose..because they
are inert and could not have any absorbance in IR range..so
we can use kcl instead of kBr...

Is This Answer Correct ?    11 Yes 11 No

Why we are using only KBr in IR spectrometer why not KCl..

Answer / parag parekh

we can use both kbr & kcl because they could not have any
absorbance in the ir region.

mostly for the compound having cloride group the kcl is
better option than kbr.

Is This Answer Correct ?    9 Yes 15 No

Post New Answer

More Analytical Chemistry Interview Questions

How do you verify the primary,secondary and tertiary amines by IR-Spectroscopy.

2 Answers   GVK,


why in GC calibration of linearity regression coefficient should not be less than 0.999

1 Answers   Acacia, Jubilant,


which are the sizes of capsules?

0 Answers  


What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.

0 Answers  


The boiling point of 1,3 butadiene is -4.4 DC & the boiling point of Pentane is 36.1 DC. Then how come Pentane elute before 1,3 BD in GC analysis?

1 Answers  






why KF factor is between 4.5 to 7.5 mg/ml ? why ? why sometime pyridine is used in analysis like in raw material solvent like acetone etc?

11 Answers   Aurobindo, GVK, Sohan Healthcare,


Why we have to take 42gm of sodium hydroxide instead of 40gm for preparation of 1M Sodium hydroxide as per Pharmacopia? Whether it means the formula for calculating molarity was wrong? 

5 Answers   Claris Otsuka, Ranbaxy,


1)What's the meaning of Absorption,give a example. 2)What's the meaning of Adsorption,give a example. 2)what is the difference between Absorption and Adsorption.

0 Answers   VHB Medi Life Sciences,


Defination of ZEEMAN EFFECT in NMR ?

2 Answers  


What is the difference between the optics of UV and PDA Detectors ?

3 Answers   Emmennar, Neuland,


What is use of LOD and LOQ in validtion and give range and in calculation why we use 3.3* LOD here why we use 3.3

2 Answers   Dr Reddys, IPCA, Reddy Labs,


how to Calibrate FID IN GC

1 Answers  


Categories
  • Organic Chemistry Interview Questions Organic Chemistry (342)
  • Inorganic Chemistry Interview Questions Inorganic Chemistry (123)
  • Analytical Chemistry Interview Questions Analytical Chemistry (1387)
  • Physical Chemistry Interview Questions Physical Chemistry (62)
  • General Chemistry Interview Questions General Chemistry (478)
  • Chemistry AllOther Interview Questions Chemistry AllOther (190)