Regarding the turbidity of toluene at low temperature

Because the melting point of benzene is 5.5 ° C, turbidity may be caused by benzene, check the benzene content in the sample or reagent.

2# SNG1107
Use other solvents, including DMF, orthopedane, petroleum ether, etc. there is no turbidity.

Before finding reagents, the cause of the instrument was excluded

4# Scene000
I don’t know what kind of instrument you refer to, the test tube is cleaned, then dry, and other solvents as other solvents as other solventsThose who do experiments under the same conditions have a phenomenon of toluene.

The ethanol reagent I bought before also had such problems.

It should be caused by a small amount of water mixed in toluene.
Some of the upstairs say that it is an error.

7# ahhooyang
Totoylene (analysis pure) with molecular sieve, or turbid and confused.