n-Butyl Lactate
n-Butyl Lactate
CAS: 138-22-7;34451-19-9
Molecular Formula: C7H14O3
n-Butyl Lactate - Names and Identifiers
n-Butyl Lactate - Physico-chemical Properties
| Molecular Formula | C7H14O3 |
| Molar Mass | 146.18 |
| Density | 0.984 g/mL at 25 °C (lit.) |
| Melting Point | -28 °C (lit.) |
| Boling Point | 185-187 °C (lit.) |
| Flash Point | 157°F |
| JECFA Number | 932 |
| Water Solubility | 42 g/L (25 ºC) |
| Vapor Presure | 0.4 mm Hg ( 20 °C) |
| Vapor Density | 5.04 (vs air) |
| Appearance | Liquid |
| Color | Clear colorless |
| pKa | 13.06±0.20(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | n20/D 1.421(lit.) |
| Physical and Chemical Properties | Colorless transparent liquid, slightly odorous. melting point -43 ℃ boiling point 83 ℃ relative density 0.9803 refractive index 1.4216 flash point 71 ℃ solubility miscible with ethanol and ether, slightly soluble in water. |
| Use | Used as raw materials for medicine and pesticide intermediates, also used as paint solvent |
n-Butyl Lactate - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 2 |
| RTECS | OD4025000 |
| HS Code | 29155090 |
n-Butyl Lactate - Reference Information
| FEMA | 2205 | BUTYL LACTATE |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Overview | the chemical name of ethyl lactate is butyl alpha-hydroxypropionate, it is a butyl ester derivative of lactic acid esterified by lactic acid and butanol produced by carbohydrate fermentation similar to sugar. It is a colorless transparent liquid with sweet cream aroma and milk aroma, and is soluble in ethanol, most organic solvents such as ether, acetone and esters are compatible with each other, and partially hydrolyzed when miscible with water. They are completely biodegradable in nature. In the food industry, ethyl lactate is used in the preparation of food flavors such as rum, dairy products, cheese and cream hard candy, milk, vanilla, mushrooms, nuts, coffee, grapes, fruit wine, coconut, etc. Solvent grade butyl lactate is a high quality environment-friendly high boiling point solvent. DL balanced environment-friendly solvent with special specifications is used in electronics, coatings, inks and other fields. The unique high purity and low metal content meet the high quality requirements of the semiconductor industry. As a safe organic solvent, it can be used for the cleaning of photosensitive materials. |
| reference quality standard | Food Grade: chemical content ≥ 98.0% solvent grade: chemical content ≥ 99.0% electronic grade: chemical content ≥ 99.5% optical purity ≥ 95.0% L/(L + D)× 100 (FCC) chroma ≤ 50 Apha acidity ≤ 0.20% moisture ≤ 0.30% (K-F method) ethanol ≤ 0.50% relative density (25/25°C) 0.975~1.038 refractive index (20°C) 1.410~1.422 |
| assay | was performed as described in method one of the ester assay (OT-18). The sample amount was 1.2g, and the equivalence factor (e) was taken as 79.12. |
| toxicity | GRAS(FEMA). |
| usage limit | FEMA(mg/kg): Soft drink 0.66; Cold drink 2.8; Candy 6.5; Baked goods 7.7. Moderate limits (FDA § 172.515,2000). |
| purpose | is used as raw material of medicine and pesticide intermediate, also used as a spray solvent GB 2760 a 9 6 provisions for the allowed use of edible spices. Mainly used in the preparation of dairy products, cheese and cream hard candy type essence. Can also be prepared from vanilla, mushrooms, nuts, coconut, coffee and other flavors. This product is a high boiling point solvent, used in natural resin, synthetic resin, perfume, paint, printing ink, Dry Lotion, adhesive. used as a solvent, also used in the preparation of paints and inks, etc. butyl lactate is a high boiling point solvent, used in natural resins, synthetic resins, spices, paints, printing inks, dry lotions, adhesives. |
| production method | is obtained by esterification of lactic acid with n-butanol. The esterification reaction is carried out in the presence of sulfuric acid. After completion of the reaction, the reaction is neutralized and distilled under reduced pressure to obtain a finished product. The esterification reaction may also be carried out in a benzene or toluene solvent. The content of butyl lactate in industrial products is greater than or equal to 95%. Raw material consumption quota: lactic acid (80%)1000kg/t, butanol 650kg/t. The dextrorotatory body is formed by the reaction of L-zinc ammonium lactate and n-butanol in the presence of concentrated sulfuric acid. The levorotatory compound was prepared by the reaction of D-zinc ammonium lactate and n-butanol in the presence of hydrochloric acid. The racemate is formed by the reaction of Sodium calcium lactate and n-butanol in benzene medium in the presence of sulfuric acid. |
| category | flammable liquid |
| toxicity grade | low toxicity |
| Acute toxicity | oral-rat LD50:>5000 mg/kg; Subcutaneous-mouse LDL0:11000 mg/kg |
| stimulation data | Skin-rabbit 500 mg/24 h moderate |
| flammability hazard characteristics | flammable in open flame, high temperature, strong oxidant; combustion-induced smoke |
| storage and transportation characteristics | The package is complete, light, light; The warehouse is ventilated, away from open flame, high temperature, separate from oxidant |
| fire extinguishing agent | foam, carbon dioxide, dry powder |
| Occupational Standard | TWA 1 PPM (5 mg/m3); Tel 3 PPM (18 mg/m3) |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 21:11:58
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