Comparison : |
Item # 0011-5078, XL Ultra Pure SpectroGrade™KBr Powder 99.999% pure, 25 grams Item # 0011-4541, XL Ultra Pure SpectroGrade™ KBr Powder 99.999% pure, 100 grams Item # 0011-4129, SpectroGrade™ KCl Powder, 100 grams Item # 0011-4875, SpectroGrade™ NaCl Powder, 75 grams Item # 0011-7694, SpecuGrind™ KBr Powder with special particle size for specular reflectance- 100gms
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