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Heptane vs naptha

VoyagerGrey

Esteemed member
On the hunt for a new local source for good solvent. I previously had bought VM&p naptha from Sherwin-Williams but it seems they no longer carry it in my region.

I found an alternative source, a chemical supplier that does sell to the public, for very reasonable prices.

They have both "vm&p naptha" and "heptane" available in reasonable quantities (less than a drum 😂). Naptha is about half the price of heptane, but for a gallon that dies add up to too much.

Other than price, is there a reason to prefer one solvent over the other?
The lower boiling point of the VM&p seems attractive, as I'd potentially lose less solvent with each extraction.

Both are "technical grade" i.e. not as pure as lab grade but they have detailed msds which give the following compositions:

"Heptane":
80-100% Solvent naphtha (pet), lt aliph. AND/OR Heptane, branched, cyclic and linear
30-60% Heptane
Boiling point 88°-100°c

"VM&P Naptha":
80-100% Distillates, pet, lt dist hydrotreat process, low-boil AND/OR Naphtha (pet), hydrotreated lt AND/OR Solvent naphtha (pet), lt aliph.

5-10% Octane
5-10% Heptane

Boiling point 118°-150°c

For both: "exact ratios/composition held as trade secret" ✌️
 
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