Isobutyl Alcohol 99% ACS Grade

Product Overview

Isobutyl Alcohol 99% ACS Grade (CAS 78-83-1) is a high-purity, clear, colorless liquid intermediate that plays a vital role in multiple chemical syntheses and industrial solvent workflows. Also known by its IUPAC name 2-methylpropan-1-ol — this medium-boiling aliphatic alcohol has the molecular formula C4H10O and a molecular weight of 74.12. Known for its distinct sweet, musty odor, it is less dense than water with a density of 0.802 at 68 °F, which means it will float when in contact with aqueous systems. Due to its balanced evaporation rate and excellent solvency properties, it is highly valued by compounding facilities across North America.

As a reliable reagent and manufacturing processing aid, Isobutyl Alcohol 99% ACS Grade acts as a critical diluent in coatings, an extractant in the production of organic compounds, and a starting material for various esters. Alliance Chemical distributes this product in multiple pack sizes to accommodate analytical laboratories, pilot plants, and large-scale manufacturing facilities. Our material is strictly controlled to maintain its high purity of 99% or greater. This ensures that your chemical processes remain free from unanticipated side-reactions or contamination. See our full range of high-purity alcohols to find the ideal grade for your operations.

Why This Grade

Choosing ACS Grade (American Chemical Society Grade) ensures that the chemical meets strict purity standards, specifically regulating trace metal contaminants, acidity, and water content. When buying an alcohol of this caliber, the 99% concentration threshold is critical because even minor percentages of water or isomeric impurities can significantly alter reaction kinetics and product yields. In analytical laboratories and precise industrial syntheses, using a technical or lower-grade solvent can introduce unpredictable variables that ruin entire batches, leading to costly operational downtime and material waste.

If a system requires an ACS Grade solvent and receives a lower grade instead, several failure modes can occur. For instance, in esterification reactions, the presence of excessive trace moisture can shift the chemical equilibrium backward, reducing the yield of the target ester. In coating applications, high water content or heavy organic residues in the solvent can cause blushing, poor adhesion, or uneven drying profiles on cured surfaces. Alliance Chemical provides this ACS Grade material to eliminate these risks, offering a stable and verified baseline for your most sensitive formulations. Learn about our supply capabilities across different industrial chemical sectors.

Industrial Applications

• Manufacturing of esters such as isobutyl acetate, which is widely utilized as a high-performance solvent in the lacquer and paint industry.
• Formulating industrial coatings, varnishes, and lacquers where a medium-boiling, slow-evaporating solvent is required to optimize surface flow and gloss.
• Serving as a chemical intermediate in the production of flotation agents, plasticizers, and agricultural chemicals used in global crop management.
• Acting as an extraction solvent in the concentration of organic compounds and chemical precursors within specialized chemical processing environments.
• Utilizing as an additive in fuels and automotive fluids to prevent carburetor icing and improve overall solvent compatibility within fuel systems.

Hazmat & Shipping

Isobutyl Alcohol 99% ACS Grade is classified as a regulated hazardous material for transportation. Under US DOT and international shipping regulations, it is designated as UN1212, Hazard Class 3, Packing Group III, with the proper shipping name Isobutanol. The designated Signal Word for this product is Danger. This compound presents a flammability risk, with a flash point of 82 °F, meaning safety protocols for Class 3 flammable liquids must be strictly enforced during loading, unloading, and transit. Proper ground-and-bond techniques must be utilized during transfer to prevent static discharge and potential ignition.

Personal protective equipment (PPE) is essential when handling this material to protect against its documented hazards. Based on the GHS hazard classifications, handling this chemical requires specific precautions to address skin irritation (H315), serious eye damage (H318), and respiratory or central nervous system effects (H335, H336). Personnel must wear chemical-resistant gloves, protective safety goggles or face shields, and appropriate respiratory protection in areas with inadequate ventilation. Proper engineering controls, such as local exhaust ventilation, should be maintained to keep vapor concentrations below regulatory exposure limits.

Handling & Storage

Safe storage of Isobutyl Alcohol requires a cool, dry, and well-ventilated area away from direct sunlight, open flames, and other potential ignition sources. Ideally, storage temperatures should be maintained within a moderate range, avoiding extreme heat that increases vapor pressure. This compound is compatible with stainless steel, carbon steel, and certain high-density polyethylene (HDPE) containers, but can degrade some natural rubbers and plastics. Keep containers tightly closed when not in use. Avoid contact with strong oxidizing agents, strong acids, acid chlorides, and acid anhydrides to prevent hazardous exothermic reactions.

Order & Documentation

Alliance Chemical is dedicated to providing complete transparency and documentation for your quality management systems. A Certificate of Analysis (COA) available upon request for every lot shipped, and a Safety Data Sheet (SDS) provided with every order to ensure safe handling practices. To secure your supply or to inquire about bulk logistics options, please Request a Quote for volume pricing or Download the SDS directly from our online chemical documentation portal.

Why Buy from Alliance Chemical

Since 1997, Alliance Chemical has supplied premium industrial chemicals from Taylor, Texas under CAGE Code 1LT50, with a COA and SDS included on every order. For industrial use only.