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Buy Isobutyl Alcohol 99% ACS Grade with faster decisions and fewer back-and-forth emails.
Ships from Taylor, Texas. In-stock orders placed before 1:00 PM CT (Mon-Thu) and before 12:00 PM CT (Fri) typically ship same business day. Order online 24/7.
Who Buys This
- Analytical laboratories for HPLC
- Paint & coating manufacturers
- Pharmaceutical synthesis companies
- Food & beverage extractors
- QC labs & research facilities
Purity / Grade Guide
- ACS Grade for lab use
- 99% concentration verified by COA with COA
- Meets reagent grade standards
- Suitable for analytical applications
Pack Sizes
- 1 Quart: lab & small jobs
- 1 Gallon: shop & maintenance
- 5 Gallon: production & regular use
- 15 Gallon: mid-volume operations
- 55 Gallon: bulk drum
- 275 Gallon: high-volume tote
- 330 Gallon: max-volume tote
SDS / COA / TDS
- UN 1212 Class 3 PG III
- SDS with every order
- COA purity documentation
- ACS compliance certificate
Small Packs: UPS Ground nationwide for pints, quarts, and gallons.
LTL / FTL: ABF, SEFL, Saia, XPO, and partner carriers for pails, drums, totes, and full truckloads.
Support: Email or call for freight options, hazardous-material routing, and lead-time confirmation.
Product Overview
Isobutyl Alcohol 99% ACS Grade (CAS 78-83-1), also known as 2-Methyl-1-propanol or Isobutanol, is a high-purity branched-chain aliphatic alcohol. Engineered for analytical and industrial applications, this solvent offers low volatility and strong solvency across a wide range of organic substrates. As an ACS Reagent Grade chemical, it meets strict specifications for purity, ensuring batch-to-batch consistency essential for chromatographic applications (HPLC), coatings formulation, and chemical synthesis.
The product appears as a clear, colorless liquid with a characteristic alcohol odor. It is meticulously processed to minimize impurities such as aldehydes, halides, and water, supporting sensitive analytical methods. With a specific gravity of approximately 0.786 and a refractive index of 1.396, it provides a stable baseline for UV-Vis and other detection workflows.
Key Properties
- Chemical Formula: C₄H₁₀O
- CAS Number: 78-83-1
- Molecular Weight: 74.12 g/mol
- Grade: ACS Reagent
- Boiling Point: 108-110°C
- Specific Gravity (20°C): 0.786 (typical)
- Flash Point: 11°C
- Water Content: ≤ 0.1%
- Residue After Ignition: ≤ 0.01%
Common Applications
- HPLC Mobile Phase: Utilized as a high-purity organic modifier in reversed-phase separations to ensure precise retention and peak shape.
- Industrial Coatings: Acts as a latent solvent and viscosity reducer in lacquers, paint thinners, and resin systems.
- Chemical Synthesis: Serves as a vital feedstock and intermediate in the production of esters and other organic compounds.
- Extraction Solvent: Used in the separation of organic compounds due to its favorable partitioning characteristics.
- Laboratory Reagent: Standard solvent for general purpose lab use requiring ACS purity standards.
Safety Precautions
Isobutyl Alcohol is flammable and must be handled with care. Store in a cool, dry, well-ventilated area away from heat, sparks, and open flames. Keep containers tightly closed when not in use. Use appropriate personal protective equipment (PPE), including solvent-resistant gloves and safety goggles, to prevent skin and eye contact.
In the event of exposure, rinse eyes with water for several minutes and wash skin thoroughly with soap and water. If inhaled, move to fresh air immediately. Refer to the Safety Data Sheet (SDS) for detailed handling and emergency response procedures.
Benefits
ACS Grade Purity – Guarantees low impurity levels for reliable analytical results.
Versatile Solvency – Effective for both resin formulations and delicate laboratory extractions.
Controlled Volatility – Offers manageable evaporation rates for coating applications.
Rigorous Testing – Verified for low trace metals and minimal water content.
Related Products
| Property | Value |
|---|---|
| Molecular Weight | 74.12 g/mol |
| Formula | C4H10O |
| Assay | 99% |
| Grade | ACS Reagent Grade |
| Flash Point | 28 |
| Form | Liquid |
| Solubility | Soluble in water, alcohol, ether, and other organic solvents |
| Appearance | Clear, colorless liquid |
| Melting Point | -108 °C |
| Boiling Point | 108 °C |
| Specific Gravity | 0.802 |
| Industry | Energy & Petroleum, Industrial & Manufacturing, Water & Environmental |
Frequently Asked Questions About Isobutyl Alcohol 99% ACS Grade
What is Isobutyl Alcohol 99% ACS Grade and what is its chemical formula?
Isobutyl Alcohol 99% ACS Grade is a chemical compound with the molecular formula C4H10O, registered under CAS Number 78-83-1 by the Chemical Abstracts Service (PubChem), with a molecular weight of 74.12 g/mol. Alliance Chemical supplies Isobutyl Alcohol 99% ACS Grade in ACS Reagent Grade grade for laboratory, industrial, and commercial applications.
What are the physical properties of Isobutyl Alcohol 99% ACS Grade?
According to the NIOSH Pocket Guide to Chemical Hazards, Isobutyl Alcohol 99% ACS Grade is supplied as a clear, colorless liquid. It has a melting point of -108°C, a boiling point of 108°C, a flash point of 28. The specific gravity is 0.802 relative to water. Solubility: Soluble in water, alcohol, ether, and other organic solvents.
What grade and purity of Isobutyl Alcohol 99% ACS Grade does Alliance Chemical offer?
Alliance Chemical offers Isobutyl Alcohol 99% ACS Grade in ACS Reagent Grade grade with a purity assay of 99%. Every lot ships with a Certificate of Analysis (COA) and Safety Data Sheet (SDS) prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and GHS Revision 7. Download SDS.
What are common industrial applications of Isobutyl Alcohol 99% ACS Grade?
Isobutyl Alcohol 99% ACS Grade serves a wide range of sectors, including Energy & Petroleum, Industrial & Manufacturing, and Water & Environmental.Alliance Chemical provides the documentation and quality certifications required for use in regulated environments.
What PPE is required when handling Isobutyl Alcohol 99% ACS Grade?
OSHA-mandated PPE per 29 CFR 1910.132-138:Nitrile gloves (8+ mil), safety goggles, flame-resistant clothing, grounded footwear, closed-toe chemical-resistant footwear. Respiratory protection (organic vapor cartridge) required in areas exceeding PEL/TLV per 29 CFR 1910.134. Emergency eyewash station and safety shower must be accessible within 10 seconds per ANSI Z358.1. Consult the SDS available from Alliance Chemical for complete PPE requirements.
What are the storage requirements for Isobutyl Alcohol 99% ACS Grade?
Store perOSHA 29 CFR 1910.106: Approved flammable storage cabinet, maximum 60 gallons per cabinet, grounding/bonding required. Temperature range:15-25°C. Segregate from:oxidizers, ignition sources. Maximum storage:2-3 years unopened.
What is the emergency spill procedure for Isobutyl Alcohol 99% ACS Grade?
Emergency response per EPA SPCC (40 CFR 112) and OSHA 29 CFR 1910.120: (1) Alert personnel, evacuate area to 100 feet. (2) Eliminate ignition sources if flammable. (3) Don PPE per SDS Section 8. (4) Stop leak if safe; use emergency shutoffs. (5) Contain with non-combustible absorbent materials, dike with sand/earth. (6)Absorb with vermiculite or commercial spill kits. (7) Collect in DOT-approved containers, label as hazardous waste. Check 40 CFR 302.4 for Reportable Quantity. Emergency: Chemtel 1-800-255-3924 (24/7). Non-emergency: Alliance Chemical 512-365-6838.
What is the DOT shipping classification for Isobutyl Alcohol 99% ACS Grade?
DOT Classification per 49 CFR 172.101:UN1993 (Flammable Liquid, N.O.S.), Hazard Class3 (Flammable), Packing GroupII/III. Requires: Hazmat shipping papers (49 CFR 172.200), UN specification packaging (49 CFR 173), hazmat labels (172.400). Alliance Chemical ships all orders in DOT-compliant packaging with proper documentation.
How must Isobutyl Alcohol 99% ACS Grade waste be disposed?
Disposal per RCRA (40 CFR 261-265):Characteristic waste D001 (Ignitable, flash point <60°C). Generator requirements: EPA ID number required if >100 kg/month (40 CFR 262.12). Use EPA-permitted Treatment, Storage, Disposal Facility (TSDF). Never discharge to sewer without POTW written approval (40 CFR 403). Container disposal: Triple rinse (40 CFR 261.7), offer for reconditioning/recycling. State regulations may be more stringent — check with your local environmental agency. Consult the Alliance Chemical SDS for product-specific disposal guidance.
Does Alliance Chemical provide an SDS and COA for Isobutyl Alcohol 99% ACS Grade?
Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of Isobutyl Alcohol 99% ACS Grade. The SDS is prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and the Globally Harmonized System (GHS) Revision 7, covering all 16 required sections including hazard identification, first aid measures, firefighting measures, handling and storage, exposure controls, and regulatory information. The SDS is available for download directly from this product page. COAs are available upon request by contacting Alliance Chemical at 512-365-6838.
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