Accelerated Degradation Experiment
Conditions
Procedure A: |
30 days exposure at 50 °C and 100% relative humidity. |
Procedure B: |
30 days exposure at 50 °C and 100% relative humidity followed by 7 days at 70 °C and 100% relative humidity |
Appearance of the substance
The substance, originally in the form of colourless, transparent scales or an almost white powder, changes after procedure A into a slightly transparent, white mass and after procedure B into a transparent, light yellow liquid.
Gain of moisture
Before exposure to heat and humidity: |
7% |
After procedure A: |
30% |
After procedure B: |
55% |
Iodometric determination
The titration is performed in the presence of bicarbonate.
After procedures A and B, the degradation was assessed at 94%.
Conclusion
Antimony sodium tartrate is subject to decomposition under accelerated degradation conditions.
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