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Is isopropyl alcohol (rubbing alcohol) used for electronics? - CAS No: 67-63-0

May 18, 2026 Leave a message

CAS 67-63-0 Isopropyl alcohol (IPA), commonly known as rubbing alcohol, is widely used in the electronics industry for cleaning and maintenance purposes.

What Is electronic grade Isopropyl alcohol?

Electronic-grade Isopropyl Alcohol (IPA) is an ultra-pure solvent (purity ≥ 99.9%) characterized by extremely low levels of moisture, trace metals, and particulate matter. This solvent is specially refined for use in the manufacturing, cleaning, and repair of sensitive electronic components, semiconductors, and circuit boards; it leaves no residue after use and does not cause short circuits.

 

Synonyms:

  • 2-propanol
  • Isopropanol
  • Propan-2-ol
  • Rubbing alcohol

 

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What are the Properties of Rubbing alcohol IPA?

Composition (CH3)2CHOH
CAS 67-63-0
Melting Point -86 C
Density 0.7863 g/ml
Molecular Weight mol. wt.=60.1
Refractive Index 1.3756
Boiling Point 82.4 C

 

CAS 67-63-0 Isopropyl Alcohol: Guide to Physical and Chemical Properties

 

Isopropyl alcohol (rubbing alcohol) uses in electronics

1. PCB Cleaning

Isopropyl alcohol (IPA) is the standard solvent for cleaning printed circuit boards (PCBs), effectively removing flux residues, surface oxides, and accumulated grime. It helps enhance circuit stability and prevents potential electrical malfunctions.

 

2. Thermal Paste Removal

Technicians frequently use high-purity (99.9%) isopropyl alcohol to wipe away aged thermal paste from CPUs, GPUs, and heat sinks. This ensures a thorough cleaning of the surface, optimizing the adhesion of newly applied thermal paste.

 

3. Electrical Contact Maintenance

Rubbing alcohol (IPA) efficiently cleans electrical connectors, contacts, and ribbon cables. Proper cleaning and maintenance help optimize conductivity and minimize signal loss or connection failures.

 

Industry Application Guide for Isopropanol Solvent

 

Why Choose Isopropyl Alcohol for Cleaning Electronics?

Thanks to its exceptional overall performance, high-purity isopropyl alcohol is widely utilized in the manufacturing and professional maintenance sectors of the electronics industry for the cleaning of electronic components.

 

Sanitizes surfaces

Isopropyl alcohol (IPA) effectively eliminates bacteria and viruses. When disinfection is the primary objective, an isopropyl alcohol solution with a concentration of 60% to 70% is considered ideal; at this concentration, its evaporation rate is relatively slow, allowing for extended contact time with the object's surface to achieve superior germicidal results.

 

Quickly evaporates

High-purity isopropyl alcohol solvent possesses extremely rapid evaporation characteristics and leaves absolutely no residue upon evaporation. Consequently, it serves as an absolutely safe and ideal choice for cleaning electronic components that are highly sensitive to moisture.

 

Dissolves oils, adhesives, and more

It effortlessly dissolves and removes flux residues, grease, oil stains, and adhesive traces. Isopropyl alcohol evaporates quickly and completely, significantly reducing the drying time for components and thereby substantially boosting operational efficiency.

 

Industrial IPA Solvent Supplier in China

 

How to Safely Clean Electronics with Rubbing alcohol IPA?

You can use isopropyl alcohol in concentrations of 70%, 91%, or 99% to clean various electronic devices; the specific concentration you choose depends on the object you are cleaning. For external components-such as device casings (e.g., when sanitizing a smartphone or TV remote)-a concentration of 60% to 70% is more effective. Conversely, higher-purity isopropyl alcohol is better suited for cleaning sensitive electronic components that are susceptible to moisture damage.

 

safety Handling Information

Isopropanol IPA is flammable and slightly toxic, follow these safety rules:
Work in well-ventilated spaces, stay away from flames and sparks. Wear protective gear for high-purity IPA use. Power off and unplug devices before cleaning.

 

Device Cleaning Guidelines

  • Phones, tablets & monitors: Spray IPA on cloth instead of direct application. Avoid camera, speaker and screen areas to prevent coating damage. Vinegar-water mixture is better for touch screens.
  • TV screens: Prioritize damp then dry cloth; use vinegar-water solution for tough stains.
  • AV devices, keyboards and peripherals: Clean shells and surfaces with 60%-70% isopropyl alcohol.

 

Conclusion

CAS No. 67-63-0 Isopropyl alcohol (Rubbing alcohol IPA) is one of the most widely used solvents in the field of electronics cleaning and maintenance. Thanks to its rapid evaporation, powerful cleaning action, and residue-free properties, it serves as an ideal choice for cleaning printed circuit boards, connectors, CPUs, and precision electronic components.

 

About us

As a leading manufacturer and exporter of chemical solvent, TIANJIN GNEE BIOTECH CO., LTD. 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.

 

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