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Topic: Waxy or rubbery material soluble in a polar solvent  (Read 303 times)

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Offline St3iNeR

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Waxy or rubbery material soluble in a polar solvent
« on: March 05, 2020, 02:27:52 PM »
Dear sirs,

I am looking for a waxy or rubbery material soluble in a polar solvent, like NaClO, water or izopropanol.

Thanks in advance.
 
Regards.

Offline Enthalpy

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Re: Waxy or rubbery material soluble in a polar solvent
« Reply #1 on: March 05, 2020, 08:12:01 PM »
I would not use NaClO as a solvent. Bizarre idea. It's a solid. In addition, it decomposes under many conditions, reacts with many compounds including rubbers, and produces toxic gases.

You could check a
"compatibility list"
that contains elastomers (or rubbers) and varied solvents. Where the compatibility is "bad" you may have found a rubber and a solvent. Intuition shall tell if the incompatibility is a dissolution or a reaction.

Neoprene for instance is a rubber and rather polar. Its usual solvents are nonpolar but you may find some polar solvents for it. This patent
https://patents.google.com/patent/CN1952031A/en
uses a mix of solvents, among them dimethyl carbonate and ketones. Maybe the nonpolar ones are not necessary.

There, THF is a solvent for several rubbers including neoprene and nitrile
http://beztruda.com.ua/personal-protective-equipment/safety-gloves/chemical-resistant-gloves.html

An other table there
https://www.engineeringtoolbox.com/chemical-resistance-rubbers-elastomers-d_1425.html
again, nitrile rubber and neoprene are incompatible with ketones.

Offline nastybyte

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Re: Waxy or rubbery material soluble in a polar solvent
« Reply #2 on: March 06, 2020, 05:14:14 AM »
I kinda assume he means NaClO(aq), anything else just wouldn't make sense (i believe NaClO would decompose before melting). If there's NaClO dissolved in your polar solvent i believe your biggest problem would be oxidation reactions, rather than solubility.  ::)

Polyols have a waxy consistency, perhaps PEG (polyethylene glycol) could be a possible candidate? Specifying the use case would help a lot!  ;)

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