What is the Difference Between Denatured Alcohol and Mineral Spirits?
Denatured alcohol is ethanol with denaturing materials added, per the TTB. Mineral spirits is a refined petroleum solvent, listed by CDC NIOSH as Stoddard solvent. They are different chemicals with different hazards, so they are not interchangeable.
Free download
Rubbing Alcohol Dilution Chart (PDF)
How much 99%, 91% or 70% rubbing alcohol and water to mix for a 70% or 60% cleaning solution, for 100, 250 and 500 ml. Every line shows its source and the date we read it. Print it or keep it on your phone.
- Ready-made amounts for 99%, 91% and 70% bottles
- The 60-90% range the CDC gives for alcohol disinfectants, and safety notes
Thank you
Your chart is ready
We use your email only for this download.In this article
What each one is
The TTB defines specially denatured spirits as “alcohol/ethanol or rum, to which denaturing materials have been added.” The additives vary by formula, listed in 27 CFR part 21; the TTB page does not name them.
NIOSH lists mineral spirits as a synonym for Stoddard solvent, a refined petroleum solvent. It describes a colorless liquid with a kerosene-like odor.
| Ethyl alcohol (NIOSH) | Stoddard solvent / mineral spirits (NIOSH) | |
|---|---|---|
| Flash point | 55 F | 102 to 110 F |
| Fire class | Not stated here | Class II combustible |
| OSHA exposure limit | 1000 ppm | 500 ppm |
The ethyl alcohol column describes pure ethanol. Denatured products differ by formula, so check the product’s safety data sheet.
Health notes
NIOSH lists irritation of the eyes, nose and throat, dizziness, dermatitis and, if aspirated, chemical pneumonitis for Stoddard solvent. Denatured alcohol is not meant for drinking.
Buying
The TTB says buyers of specially denatured spirits from a distilled spirits plant or dealer need an industrial alcohol user permit. If someone swallows either, call poison control or a doctor.
People also ask
Is denatured alcohol the same as mineral spirits?
No. Denatured alcohol is ethanol with additives; mineral spirits is a petroleum solvent.
Which has the lower flash point?
By NIOSH figures, ethyl alcohol (55 F) ignites at a lower temperature than Stoddard solvent (102 to 110 F).
Can you drink denatured alcohol?
No. Denaturing materials are added to the alcohol, and it is not meant for drinking.
Sources
About · How we verify this · Editorial policy · Corrections
