FAQs
When should I choose 99% IPA over 70%?
99% IPA is best for applications that require speedy evaporation and minimal water content, such as cleaning electronics, optical parts, and precision instruments. If your goal is disinfection, 70% IPA is more effective due to its longer surface contact time.
Can I dilute 99% IPA into 70% for disinfecting?
Yes. Mix about 7 parts IPA with 3 parts purified water to achieve a 70% solution. Always use clean, deionized water and proper containers if you are preparing it for sensitive lab or cleanroom use.
How should I store IPA 99%?
Store tightly sealed in a cool, dry, well-ventilated area away from heat or ignition sources. Keep containers properly closed to prevent evaporation and contamination.
Is it safe to use IPA 99% on electronics?
Yes, but use caution. Apply IPA with lint-free wipes or swabs rather than pouring directly. Ensure devices are powered off and unplugged, and allow complete drying before use to avoid short-circuiting.
Does IPA 99% expire?
Properly stored, IPA 99% can remain effective for two to three years. However, exposure to air or improper sealing can reduce purity over time, so always check containers before use.
What safety precautions should I follow?
Use in a well-ventilated area, wear nitrile gloves and safety glasses, and avoid ignition sources. IPA 99% is highly flammable, so proper storage and handling are critical.
Is IPA 99% cleanroom safe?
Yes. IPA 99% is used in ISO-class cleanrooms worldwide, provided it’s handled with proper PPE and stored in compliant flammable storage cabinets.
