Merck
CN
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1.08158

Supelco

Potassium dichromate standard solutions in sulfuric acid (0.01N)

test set for calibrating the absorbance of spectrophotometers

grade

analytical standard

Quality Level

technique(s)

UV/Vis spectroscopy: suitable

application(s)

environmental
pharmaceutical

format

mixture

storage temp.

15-25°C

General description

Test set for calibrating the absorbance of spectrophotometers

Analysis Note

Absorbance measured in a 10 mm cells at 20 ± 1 °C against sulfuric acid reference solution:
                    50 mg/l                   100 mg/l
235 nm             0.621 ± 0.02             1.242 ± 0.02
257 nm             0.722 ± 0.02             1.444 ± 0.02
313 nm             0.242 ± 0.02             0.484 ± 0.02
350 nm             0.536 ± 0.02             1.071 ± 0.02
Absorbance (235 nm; 50 mg/l): 0.601 - 0.641
Absorbance (257 nm; 50 mg/l): 0.702 - 0.742
Absorbance (313 nm; 50 mg/l): 0.222 - 0.262
Absorbance (350 nm; 50 mg/l): 0.516 - 0.556
Absorbance (235 nm; 100 mg/l): 1.222 - 1.262
Absorbance (257 nm; 100 mg/l): 1.424 - 1.464
Absorbance (313 nm; 100 mg/l): 0.464 - 0.504
Absorbance (350 nm; 100 mg/l): 1.051 - 1.091

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Quality

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