70% solution is usually more effective for regular disinfection since it evaporates more slowly, giving it more time to destroy germs.
If you're cleaning electronic devices, however, it's better to choose a higher concentration such as 91% or 99% isopropyl alcohol, which dries quickly and leaves no residue.
70% Isopropyl Alcohol
Typical Use Case: Disinfection, first-aid antiseptic, household cleaning.
Why 70%? The presence of 30% water slows down evaporation, enhancing its germ-killing ability by prolonging surface contact.
91% Isopropyl Alcohol
Typical Use Case: Electronics cleaning (e.g., circuit boards), degreasing, and industrial tasks.
Evaporation Rate: Faster than 70% but still contains enough water to dissolve certain contaminants.
99% Isopropyl Alcohol
Typical Use Case: Critical cleaning in labs, removing moisture from electronics, specialty industrial processes.
Maximum Purity: Very low water content ensures minimal residue; ideal for water-sensitive equipment.
Where to Buy Isopropyl Alcohol?
Gneebio offers multiple grades and concentrations of IPA, each with certificates of analysis (COAs) to ensure quality and purity. Our top sellers include:
- Isopropyl Alcohol 70% USP Grade
- Isopropyl Alcohol 91%
- Isopropyl Alcohol 99%
Related Chemical Products from Gneebio
Bulk Industrial buyers often purchase isopropyl alcohol (CAS67-63-0) together with other solvents and intermediates.
Here are the most popular products:
| Product Name | CAS |
|---|---|
| Cyclohexanone (CYC) | 108-94-1 |
| Methyl Methacrylate (MMA) | 80-62-6 |
| 2-Methoxyethanol | 109-86-4 |
| Propionic Acid | 79-09-4 |
| Ethylene Glycol (Meg) | 107-21-1 |
| N, N-Dimethylacetamide (DMAC) | 127-19-5 |
Click here to get the latest global isopropyl alcohol (CAS67-63-0) market prices for 2025.