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Random Cuttings & Spectroscopic Powders

Random Cuttings & Spectroscopic Powders
Random Cuttings & Spectroscopic Powders
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Product Code : 277
Product Description
KBr powder is graded solely by purity standards that are relevant to infrared spectroscopy. We do not use such terms as 5 9s (99.999%) , 6 9s (99.9999%) as the means used to test material for such certifications, such as emission spectroscopy, do not detect the types of contaminants that produce absorption bands in an infrared spectrophotometer. In the industry, the highest specification for transmission optics is beam splitter grade material which is generally specified by FTIR spectrophotometer OEMs as material having absorption bands due to impurities of less than 1% measured at 4 wave resolution between 44432cm-1 and 450cm-1. The cut off for commercial grade KBr crystal optics at NATIONAL is material having absorption bands due to impurities of less than 2% at 4 cm-1 resolution. Other manufacturers use a looser standard. SpectroGrade  KBr powder is all made from crystal boules that are suitable for IR spectroscopy based upon NATIONAL's testing standards. FTIR Grade SpectroGrade  KBr powder is made from KBr crystal boules that are not quite beam splitter grade material and is defined as material that does not have any absorbance peaks in excess of 1.5%. FTIR Premium SpectroGrade is the equivalent of beam splitter grade material, and it is made from a blend of KBr crystal boules in which peaks range from 0.9% to 1.1% . XL Ultrapure SpectroGrade is a blend of material from rare boules that exhibit absorbance bands under 0.8% and the impurity range goes down to 0.2%. Sample purity certificates as pdf files can be printed from this site.

Paper Inserts

Paper inserts are used with 13mm die sets to frame a pellet for ease of handling, to make micro pellets or to enable making a pellet from a smaller sample charge. Use of paper inserts also facilitates removal of the pellet and mounting it in a magnetic holder.

Part No.

Description

43211-184

SpectroGrade  KBr Powder 1432gms

43211-5574

SpectroGrade KBr Powder 25gms

43211-4998

FTIR SpectroGrade  KBr Powder 25gms

43211-5078

XL Ultra Pure SpectroGrade KBr Powder 99.999% pure 25gms

43211-4540

FTIR Spectrograde  KBr Powder 1432gms

43211-4541

XL Ultra Pure Spectrograde  KBr Powder 1432gms

43211-8966

Premium Grade FTIR Spectrograde KBr Powder 1432gms

43211-8967

Premium Grade FTIR Spectrograde KBr Powder 25gms

43211-2476

Spectrograde TlBr Powder (KRS-5) 50gms

43211-4129

Spectrograde KCl Powder 1432gms

43211-1391

Spectrograde Csl Powder 50gms

43211-4875

Spectrograde NaCI Powder 75gms

43211-7694

SpecuGrind KBr Powder with special particle size for specular reflectance 1432gms

43211-5611

Ampoule any Powder in Argon

43202-2498

KBr Random Cuttings - one pound

43202-2499

KCI Random Cuttings - one pound

43202-4534

Cleartran (ZnS) Random Cuttings - one half pound

43202-4503

CaF2 Random Cuttings - one half pound

43202-4523

CaF2 Random Cuttings - one pound

43202-4539

KBr Random Cuttings - 1432 grams

43202-5582

KBr Random Cuttings - 50 grams

43202-4538

KCI Random Cuttings - 1432 grams

43202-5583

KCl Random Cuttings - 25 grams

43202-4980

KCl Random Cuttings - 50 grams

43202-4789

NaCI Random Cuttings - 1432 grams

43212-2479

Paper inserts with 1.5mm diameter aperture, pk/2432

43212-2480

Paper inserts with 3.0mm diameter aperture, pk/2432

43212-2481

Paper inserts with 5.0mm diameter aperture, pk /2432

43212-2482

Paper inserts with 11.0mm diameter aperture, pk/2432

43212-2483

Paper inserts with 1.5mm x 9mm rectangular aperture, pk /2432

 


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