Product Description of 1,3-Butanediol (CAS#107-88-0)
1,3-Butanediol is a clear, viscous humectant-type liquid. It carries a subtle inherent flavour and is virtually odour-free. Its physical parameters are listed below: boiling-point reaches 207.5°C; relative density measures 1.0059 under 4-degree-centigrade condition; the refractive index (nD20) equals 1.4401; its freezing temperature stays lower than -50°C, and the flash-point is 121.1°C. This diol substance possesses mild bacteria-inhibiting capacity. It can be fully mixed with water as well as acetone and displays good dissolvability within ether solvent.
1,3-Butanediol Chemical Properties
| Melting point | -54 °C |
| Boiling point | 203-204 °C(lit.) |
| density | 1.005 g/mL at 25 °C(lit.) |
| vapor density | 3.1 (20 °C, vs air) |
| vapor pressure | 0.06 mm Hg ( 20 °C) |
| refractive index | n20/D 1.44(lit.) |
| Fp | 250 °F |
| storage temp. | Store below +30°C. |
| solubility | >500g/lMiscible |
| form | Liquid |
| pka | 14.83±0.20(Predicted) |
| color | Clear colorless to yellow, may discolor to brown on storage |
| Specific Gravity | 1.004 – 1.007 |
| Odor | odorless |
| PH Range | 6 - 7 at 20 °C |
| PH | 6.1 (500g/l, H2O, 20℃) |
| explosive limit | 1.9-12.6%(V) |
| Water Solubility | SOLUBLE |
| Sensitive | Hygroscopic |
| Merck | 141567 |
| BRN | 1731276 |
| Stability: | Stable. Flammable. Hygroscopic - protect from air and moisture. Incompatible with strong oxidizing agents. |
| LogP | -0.9 at 25℃ |
| CAS DataBase Reference | 107-88-0(CAS DataBase Reference) |
| NIST Chemistry Reference | 1,3-Butanediol(107-88-0) |
| EPA Substance Registry System | 1,3-Butylene glycol (107-88-0) |
Safety Information
| Safety Statements | 24/25 |
| WGK Germany | 1 |
| RTECS | EK0440000 |
| F | 3 |
| Autoignition Temperature | 741 °F |
| TSCA | Yes |
| HS Code | 29053920 |
| Hazardous Substances Data | 107-88-0(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 18610 mg/kg LD50 dermal Rabbit > 20000 mg/kg |
Product Application of 1,3-Butanediol (CAS#107-88-0)
1,3-Butanediol features diol-based chemical activity, odour-free property, low-toxic characteristic and favourable water-soluble performance. Its primary usage fields are shown as follows:
Feedstock for Polyester and Alkyd Resins
It participates in the manufacturing of unsaturated polyester products. The substance can be applied separately or blended with ethylene-glycol raw materials, end-finished materials with outstanding water-proof capability, pliability and shock-resistant capacity.
Plasticizer Synthetic Precursor
After reacting with dibasic acids including adipic acid, it generates polyester-type plasticizers. These additives come with low volatility and anti-migration traits, alongside great tolerance against soapy-water, organic solvents and grease substances.
Raw Ingredient for Polyurethane Coating Systems
It works as the synthetic unit of saturated polyester applied within polyurethane paint. Compared with other diol substances, it can greatly enhance the water-repellent performance of uncoated substrates.
Humectant, Softening Agent and Industrial Solvent
This chemical boasts powerful moisture-locking capacity and harmless low-toxic attributes. Its ester derivatives can serve as wetting additives and softeners for tobacco goods, celluloid, vinylon membrane, paper and textile fibre. Besides, it acts as the dissolving medium for fine-chemical supplies such as skin lotions, medicinal ointments, face creams and tooth-paste. It also works as a synthetic intermediate for medicine and dyestuff production.
