Iso propyl Alchohol ( Pure grade)

Description

IPA Pure most commonly refers to highly concentrated Isopropyl Alcohol (IPA), also known as isopropanol or 2-propanol. It’s a clear, colorless liquid with a strong, distinct odor. The term “pure” is used to distinguish it from more common, diluted forms like “rubbing alcohol,” which typically contains 70% IPA and 30% water. Pure IPA is usually sold at a concentration of 99% or higher.

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Chemical Properties

Property	Description
Chemical name	Isopropyl alcohol (2-propanol)
Molecular formula	C₃H₈O
Appearance	Clear, colorless liquid
Odor	Characteristic alcoholic odor
Taste	Burning (not for tasting)
State	Liquid
Density	~0.785 g/mL (at 20 °C)
Boiling point	~82.5 °C
Melting point	~−89 °C
Volatility	Volatile
Solubility in water	Completely miscible
Solubility in solvents	Miscible with alcohol, ether, chloroform

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Common Uses

The high purity of IPA Pure makes it suitable for specific applications:

• Electronics Cleaning: It’s used to clean circuit boards, remove flux residues, and clean optical disc lenses without leaving streaks or moisture that could cause damage.
• Industrial Solvent: A versatile solvent for cleaning, degreasing, and in various manufacturing processes.
• Medical and Laboratory Use: High-purity grades are used in pharmaceutical processes, laboratory equipment cleaning, and as a disinfectant in cleanroom environments.
• Aesthetic and Hobby Use: It’s used by miniatures hobbyists to strip paint, and by artists and crafters for various cleaning and preparation tasks.

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Grades

Technical/Industrial Grade

Purity: Typically 99% or higher, but with less stringent purity standards.

Impurities: May contain a higher level of trace impurities compared to higher grades.

Uses: Used for general industrial applications, cleaning, degreasing, and as a raw material for other chemical derivatives. It’s not approved for use in medical, food, or pharmaceutical products.

USP/Medical/Pharmaceutical Grade

Purity: Must meet the strict standards set by the United States Pharmacopeia (USP) or other equivalent pharmacopeias (like EP, BP, JP). This typically means a minimum purity of 99.0% or higher.

Impurities: The specifications limit the maximum levels of impurities such as acetone, 1-propanol, and other volatile substances.

Uses: This grade is suitable for medical applications, including as a disinfectant for skin and medical devices. It is also used in the manufacturing of pharmaceuticals, cosmetics, and personal care products. The common “rubbing alcohol” sold in pharmacies is often a 70% or 91% solution of USP grade IPA.

ACS (Spectrophotometric Grade)

Purity: This grade adheres to the purity standards of the American Chemical Society (ACS). It has a higher purity than USP grade, typically 99.5% or more.

Impurities: It has very low levels of specific impurities that could interfere with analytical tests, particularly spectrophotometry.

Uses: Used in laboratory and analytical work where high purity is critical for accurate results.

Electronic/Semiconductor Grade (E-grade)

Purity: This is the highest purity grade of IPA, often reaching 99.9% or even 99.999% purity.

Impurities: It has extremely low levels of metallic ions, particles, and other contaminants that could damage sensitive electronic components. The level of impurities is measured in parts per billion (ppb) or parts per trillion (ppt).

Uses: This grade is essential for the semiconductor industry, used for cleaning wafers, circuit boards, and other high-tech electronic components during the manufacturing process.