2‑Butanol CAS#78‑92‑2
This product is a transparent, colourless liquid that carries a characteristic alcoholic odour. It has a low flash point, falling below 0 °F. It possesses a lower density compared with water, and its vapours are heavier than ambient air, so they tend to sink and gather near ground level. It has solubility in water. It exerts moderate irritation effects on human eyes and skin. Long‑term or repeated skin exposure can strip natural oils from the skin surface, resulting in dryness and chapping. Its volatile vapours are likely to trigger irritation to the nasal passages, throat and respiratory tract after inhalation. In addition, swallowing this substance may bring about health hazards to the human body.
| 2-Butanol Chemical Properties |
| Melting point | −115 °C(lit.) |
| Boiling point | 98 °C(lit.) |
| density | 0.808 g/mL at 25 °C(lit.) |
| vapor density | 2.6 (vs air) |
| vapor pressure | 12.5 mm Hg ( 20 °C) |
| refractive index | n |
| Fp | 80 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | 125g/l |
| pka | >14 (Schwarzenbach et al., 1993) |
| form | Liquid |
| color | Colorless |
| Relative polarity | 0.506 |
| Odor | Strong, pleasant. |
| PH | 7 (20°C) |
| PH Range | 7 |
| Odor Threshold | 0.22ppm |
| Odor Type | fruity |
| explosive limit | 1.4-9.8%(V) |
| Water Solubility | 12.5 g/100 mL (20 ºc) |
| Sensitive | Hygroscopic |
| Merck | 14,1541 |
| BRN | 1718765 |
| Henry's Law Constant | 1.19 (static headspace-GC, Merk and Riederer, 1997) |
| Exposure limits | TLV-TWA 450 mg/m3 (150 ppm) (NIOSH), 305 mg/m3 (100 ppm) (ACGIH); IDLH 10,000 ppm. |
| Dielectric constant | 15.8（25℃） |
| Stability: | Stable. Flammable. Substances to be avoided include acids, acid chlorides, acid anhydrides, oxidizing agents and halogens. |
| Major Application | cleaning products cosmetics environmental flavors and fragrances food and beverages personal care |
| Cosmetics Ingredients Functions | SOLVENT |
| InChI | 1S/C4H10O/c1-3-4(2)5/h4-5H,3H2,1-2H3 |
| InChIKey | BTANRVKWQNVYAZ-UHFFFAOYSA-N |
| SMILES | CCC(C)O |
| LogP | 0.610 |
| Surface tension | 23.56mN/m at 293.15K |
| CAS DataBase Reference | 78-92-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Butanol(78-92-2) |
| EPA Substance Registry System | 2-Butanol (78-92-2) |
| ECETOC JACC REPORT | 2-Butanol (78-92-2) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 10-36/37-67 |
| Safety Statements | 13-24/25-26-46-7/9 |
| RIDADR | UN 1120 3/PG 3 |
| OEB | A |
| OEL | TWA: 100 ppm (305 mg/m3), STEL: 150 ppm (455 mg/m3) |
| WGK Germany | 1 |
| RTECS | EO1750000 |
| Autoignition Temperature | 761 °F |
| TSCA | TSCA listed |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29051490 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Eye Irrit. 2 Flam. Liq. 3 STOT SE 3 |
| Hazardous Substances Data | 78-92-2(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 6480 mg/kg LD50 dermal Rat > 2000 mg/kg |
| IDLA | 2,000 ppm |
Product Application Of 2-Butanol CAS#78-92-2
1. Application Scenarios
1.1 Chemical Synthesis Intermediate
2-Butanol serves as a valuable starting material for manufacturing methyl ethyl ketone and sec-butyl acetate, two widely demanded chemical intermediates in the coating and fine chemical industries. It participates in controlled esterification and oxidation reactions to support stable continuous production of these downstream products.
1.2 Industrial Solvent for Coatings & Paints
It works as an efficient solvent for lacquers and alkyd enamels. It can adjust the evaporation rate of coating systems, improve film leveling property and enhance the dispersion of pigments and resins, helping form smooth and uniform coating layers. It is also formulated into paint remover formulations for stripping old paint layers.
1.3 Industrial Cleaning & Maintenance
This alcohol is a key ingredient in various industrial cleaning compounds. It can dissolve grease, oil residues and organic contaminants on metal and hard surfaces. Besides, it is adopted in hydraulic brake fluid formulations to tune viscosity and maintain stable performance of brake systems. It is suitable for surface polishing and cleaning treatment of different industrial materials.
1.4 Mineral Flotation Auxiliary
Its xanthate derivatives, converted from 2-butanol, are important collectors used in ore flotation processes. They help separate target mineral components from gangue and improve the recovery rate of minerals in mining beneficiation.
1.5 Fragrance, Essence & Dye Industry
It is a common raw material for preparing fruit essences and perfumery ingredients, matching its fruity odor characteristic. Meanwhile, it acts as a solvent and auxiliary agent in dyestuff production and dye dissolving processes to promote uniform dyeing effect.
2. Packaging Specification
Standard package: 180kg iron drum, sealed with anti-leakage gaskets.
Customized packaging: IBC tote tank can be arranged for bulk orders upon customer request.
Marking: Each package is printed with CAS number, product name, hazard label, net weight and batch information to meet international shipping requirements.
3. Transportation & Storage Instructions
3.1 Transportation
2-Butanol is classified as flammable liquid. During transit, keep away from open flame, heat sources and strong oxidants. Closed vehicles with good ventilation are required. Shock and overturn should be avoided to prevent drum leakage. We arrange proper cargo segregation according to IMDG rules.
3.2 Storage
Store in a cool, dry and ventilated chemical warehouse. Containers must be tightly closed. The recommended storage temperature is 5–30℃. Do not store together with acids, oxidizing agents and halogen substances. Keep away from sunlight.
4. Delivery Schedule
Fast delivery time
Inventory goods: Shipment within 2–3 working days after payment confirmation
New production order: 7–10 working days for production and loading, subject to production arrangement
Before shipment, we provide packing photos for your confirmation.
5. After-sales Service
Document support: COA, TDS, MSDS, packing list and commercial invoice can be supplied together with cargo.
Logistics tracking: We send tracking information once goods depart the warehouse and update delivery progress actively.
Technical support: Our technical team can offer guidance about solubility, formulation matching and safe operation.
Quality handling: If any quality issue is verified after receiving goods, we will discuss reasonable solutions such as retest, supplement or negotiation.
6. Customer Cases
We supply 2-Butanol to coating factories, fine chemical manufacturers, mineral flotation plants, fragrance enterprises and industrial cleaning agent producers. Our customers use it for paint formulation, downstream ketone & ester synthesis, beneficiation reagent production and daily fragrance raw material preparation. We can support regular bulk FCL supply for long-term cooperation clients.
7. FAQ
Q1: Can 2-Butanol be mixed with water directly in any proportion?
A1: It has limited water solubility. It is partially miscible with water instead of fully miscible at all ratios.
Q2: Is this product suitable for cosmetic formula?
A2: It can be used as solvent in cosmetic raw materials within compliant dosage limits, you need to check local cosmetic regulatory requirements before formulation.
Q3: Can I order a small sample for lab test before bulk purchase?
A3: Yes, sample service is available for quality verification. After you confirm the performance, you can place the FCL bulk order.
Q4: What is the shelf life under proper storage?
A4: 24 months if stored as recommended, sealed and away from heat and direct sunshine.
