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What is the difference between 70% and 99% isopropanol (CAS 67-63-0)?

Jan 14, 2026 Leave a message

CAS 67-63-0 Isopropyl alcohol (IPA), also known as isopropanol, is a versatile solvent widely used for cleaning and disinfecting. Its quick evaporation rate, ability to dissolve a wide range of non-polar compounds, and efficacy in killing microbes make it an indispensable tool in homes, industries, and healthcare settings.

 

What is the difference between 70% and 99% isopropanol (CAS 67-63-0)?

The key differences between 70% and 99% isopropyl alcohol lie in purity, intended use, and performance:

 

Feature 70% Isopropyl Alcohol 99% Isopropyl Alcohol
Purity 70% IPA + 30% water ≥99% IPA, minimal water (<1%)
Core use Disinfection (skin, surfaces, medical devices) Industrial solvent, electronics cleaning, chemical synthesis
Evaporation rate Slow (water slows evaporation) Fast (pure IPA evaporates quickly)
Disinfectant efficacy High (optimal for microbial kill) Low (evaporates too fast for effective disinfection)
Residue after evaporation May leave slight water residue No residue (ideal for precision cleaning)
Cost Lower Higher

 

Iso Propyl Alcohol (IPA)

 

Storage and Safety Tips

  • Store in a cool, dry, and well-ventilated area.
  • Keep away from heat and open flames.
  • Always use in well-ventilated spaces to avoid inhalation.
  • Wear gloves when handling large quantities.

 

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As a leading manufacturer and exporter of fine chemicals, GNEE BIO provides high-quality industrial chemicals. We supply to customers across the chemical, pharmaceutical, and materials industries, ensuring consistent quality, reliable logistics, and professional technical support.

Our chemical products hold international certifications (REACH, ISO, FMQS, HALAL) for global quality recognitio. We have warehouses in coreports such as Qingdao, Tianiin, and Shanghai, with a 15-day express delivery service.

 

Other Hot-Selling Products

 

CAS 64-19-7 Acetic acid/Glacial Acetic Acid; CAS 75-05-8 Acetonitrile; CAS 67-68-5 Dimethyl Sulfoxide (DMSO); CAS 67-63-0 Isopropyl alcohol (IPA); CAS 95-47-6 o-Xylene; CAS 106-42-3 p-Xylene; CAS 75-09-2 Dichloromethane (DCM).

 

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