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One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； June 20

2016-06-20View Original

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Fill-in-the-blank: In the suspension polymerization of PVC, the emergency quenching agents currently in use are ( ) ( ) ( ). Answer: a-**Ethylene, nitric oxide, 4-tert-butylcatechol, etc.**
Reply #22016-06-20
a-**Ethylene, nitric oxide, 4-tert-butylcatechol
Reply #32016-06-20
In the suspension polymerization of PVC, the emergency quenching agents currently in use are (NO), (α-**ethylene**), and nonylphenol.
Reply #42016-06-20
a-**Ethylene, nitric oxide, 4-tert-butylcatechol, etc
Reply #52016-06-20
In the suspension polymerization of PVC, the emergency quenching agents currently in use are (NO), (α-**ethylene**, )
Reply #62016-06-21
a-**Ethylene, nitric oxide, 4-tert-butylcatechol
Reply #72016-06-21
a-**Ethylene nitric oxide 4-tert-butylcatechol
Reply #82016-06-21
NO /α-Methyl-styrene
Reply #92016-06-21
NO and α-**ethylene, 4-tert-butylphenol
Reply #102016-06-21
NO and α-**ethylene NO

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Translated at 2026-07-21 00:01:52

Original: https://bbs.hcbbs.com/thread-1596045-1-1.html

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