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Ethylene glycol impurities and UV transmittance

Ethylene glycol impurities and UV transmittance

Ethylene glycol impurities and UV transmittance

(OP)
Has anyone experienced impurities which result in low UV transmittance during the production of ethylene glycol? There is limited research/technical articles describing reaction mechanisms or root causes for the generation of impurities. Experience at our plant has only identified air ingress into the vacuum systems as a possible cause. Any suggestions out there?

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