Stress condition (Degradation)

% of impurities formed

% of

degradation

Peak purity^#

Imp C

Imp B

Imp E

Imp H

Unknown

1.2 RRT

Purity angle

Purity threshold

As such sample

0.13

ND*

ND

ND

0.74

0.88

0.783

1.616

Acid

(1N HCl, 30 m, 60˚C)

ND

ND

9.11

ND

2.91

12.27

0.495

1.217

Base

(1N NaOH, 15 m, 60˚C)

0.13

ND

21.55

ND

1.21

23.11

0.878

2.151

Thermal

(48 hrs, 70˚C)

0.18

ND

0.07

ND

0.71

1.07

0.731

1.583

Water

(3 hrs, 75˚C)

0.6

ND

0.49

ND

28.18

29.71

0.410

0.603

Oxidation

(3%H₂O₂, 2 hrs, 75˚C)

3.44

ND

0.74

ND

23.17

27.9

0.295

0.555

Sunlight

1.2 million Lux hours

0.13

ND

0.05

ND

0.45

0.68

0.734

1.817

UV light

(200 wats/m²)

0.13

ND

ND

ND

0.45

0.58

0.526

2.204

Humidity

7 days, 90% RH/25˚C

0.15

ND

0.06

ND

1.04

1.27

0.824

1.564