Propionic ether
Ethyl propionate
CAS: 105-37-3
Molecular Formula: C5H10O2
Propionic ether - Names and Identifiers
| Name | Ethyl propionate |
| Synonyms | FEMA 2456 PROPIONIC ETHER Ethyl propionate ETHYL PROPANOATE ethyl propanoate ETHYL PROPIONATE Ethyl n-propanoate ethyl hexadecanoate RARECHEM AL BI 0159 PROPANOIC ACID ETHYL ESTER Propionic acid ethyl ester Propanoic acid ethyl ester PROPIONIC ACID ETHYL ESTER |
| CAS | 105-37-3 |
| EINECS | 203-291-4 |
| InChI | InChI=1/C5H10O2/c1-3-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20-4-2/h3-17H2,1-2H3 |
| InChIKey | FKRCODPIKNYEAC-UHFFFAOYSA-N |
Propionic ether - Physico-chemical Properties
| Molecular Formula | C5H10O2 |
| Molar Mass | 102.13 |
| Density | 0.888 g/mL at 25 °C (lit.) |
| Melting Point | -73 °C (lit.) |
| Boling Point | 99 °C (lit.) |
| Flash Point | 54°F |
| JECFA Number | 28 |
| Water Solubility | 25 g/L (15 ºC) |
| Solubility | 17g/l |
| Vapor Presure | 40 mm Hg ( 27.2 °C) |
| Vapor Density | 3.52 (vs air) |
| Appearance | Liquid |
| Color | Clear colorless to pale yellow |
| Merck | 14,3847 |
| BRN | 506287 |
| PH | 7 (H2O, 20℃) |
| Storage Condition | Flammables area |
| Explosive Limit | 1.8-11%(V) |
| Refractive Index | n20/D 1.384(lit.) |
| Physical and Chemical Properties | Characteristics of colorless liquid, pineapple aroma. melting point -73.9 ℃ boiling point 99.1 ℃ relative density 0.8917 refractive index 1.3839 flash point 12 ℃ solubility miscible with ethanol and ether, slightly soluble in water. Can dissolve cellulose nitrate, but does not dissolve cellulose acetate. |
| Use | Used as a food flavoring agent, can also be used as a solvent for natural and synthetic resins |
Propionic ether - Risk and Safety
| Hazard Symbols | F - Flammable |
| Risk Codes | 11 - Highly Flammable |
| Safety Description | S16 - Keep away from sources of ignition. S23 - Do not breathe vapour. S24 - Avoid contact with skin. S29 - Do not empty into drains. S33 - Take precautionary measures against static discharges. |
| UN IDs | UN 1195 3/PG 2 |
| WGK Germany | 1 |
| RTECS | UF3675000 |
| TSCA | Yes |
| HS Code | 29159000 |
| Hazard Class | 3 |
| Packing Group | II |
Propionic ether - Upstream Downstream Industry
| Raw Materials | Propionic acid |
| Downstream Products | Pyrimethamine |
Propionic ether - Nature
Open Data Verified Data
colorless liquid with special aroma of pineapple and rum. Soluble in water, with ethanol, ether, propylene glycol and most non-volatile oil miscibility.
Last Update：2024-01-02 23:10:35
Propionic ether - Hair-making
Open Data Verified Data
obtained by direct esterification of propionic acid and ethanol, washing and fractionation.
Last Update：2022-01-01 10:07:39
Propionic ether - Use
Open Data Unverified Data
used to blend banana, pear, cream, pear, bubble gum, jackfruit, rum, apple, grape, peach, tropical fruit and other food flavors, can also be used in tobacco and wine flavor. The dosage of gummy sugar was 1100mg/kg in 1100mg/kg baked food, and the dosage of candy was 78mg/kg/29mg/kg in cold drink/10~15mg/kg in pudding; 7.7mg/kg in soft drinks.
Last Update：2024-04-09 19:43:38
Propionic ether - Reference Information
| FEMA | 2456 | ETHYL PROPIONATE |
| olfactory threshold (Odor Threshold) | 0.007ppm |
| LogP | 1.31 at 22.1℃ |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| content analysis | determination is carried out according to method 1 in ester content determination method (OT-18). The amount of sample taken is 1g. The equivalent factor (e) in the calculation is 51.07. Or by non-polar column method in GT-10-4. |
| toxicity | ADI 1 mg/kg(CE). LD503.5g/kg (rabbit, via mouth). |
| use limit | FEMA(mg/kg): soft drink 7. 7; Cold drink 29; Candy 78; Baked food 110; Pudding 10~15; Gum candy 1100. Moderate limit (FDA § 172.515,2000). |
| Use | Used as a food flavoring agent, and can also be used as a solvent for natural and synthetic resins Used as a chemical reagent GB 2760-96 is a permitted edible flavor. Mainly used to prepare rum, liquor and bananas, pears, apples, pineapples, cream and other flavors. It can be used as a head fragrance and occasionally in daily chemical flavors. In perfumes and aqua daily necessities, it can give round head fragrance, especially in citrus-cologne flavor. It is widely used in edible essence, and can be used to prepare rum, white wine, apple, banana, raw pear, pineapple, plum, cream and other flavors. It is also used in tobacco flavors. This product is used as a solvent for cellulose esters and ethers, various natural or synthetic resins; as a spice, it can be used to blend apple, banana, plum, pineapple, as well as butter, western wine and other edible flavors. It can also be used as an advanced daily makeup Lv flavor. The product is also used as an intermediate in organic synthesis for the production of pyrimethamine, an antimalarial drug mainly used for etiological prevention. Ethyl propionate is a food spice allowed by my country's "Hygienic Standards for the Use of Food Additives". It is mainly used to prepare apricot, banana, pineapple, apple, strawberry, cream and other flavored flavors, such as liquor and rum. The dosage of gum sugar is 1100 mg/kg; 110 mg/kg in baked food; 78 mg/kg in candy; 29 mg/kg in cold drinks; 10~15 mg/kg in pudding; 7.7 mg/kg in soft drinks. Ester solvent, organic synthesis, flavoring agent. |
| production method | add 50kg of propionic acid and 38kg of ethanol into the reactor, stir for 15min and then add 38kg of anhydrous calcium chloride. After heating and reflux for 10h, 80 ~ 85L of crude product was distilled. Wash with 5% ~ 10% sodium carbonate solution for 3~4 times, and wash with water once after the acid is qualified. After 2~3kg of anhydrous sodium carbonate is added and dried, fractionated, and fraction at 96~100 ℃ is collected to obtain 40L of product. CH3CH2COOH + CH3CH20H → CH3CH2COOCH2CH3 + H2O propionic acid and ethanol are directly esterified under sulfuric acid catalysis, and then neutralized, washed and rectified to obtain the finished product. It is made by boiling esterification of propionic acid and ethanol in chloroform in the presence of concentrated sulfuric acid. |
| category | flammable liquid |
| toxicity classification | low toxicity |
| acute toxicity | oral-rat LD50: 8732 mg/kg; Oral-mouse LD50: 1158 mg/kg |
| stimulation data | eyes-rabbit 1000 mg moderate; Skin-rabbit 500 mg/24 hours moderate |
| explosive hazard characteristics | blastable when mixed with air |
| flammability hazard characteristics | flammability in case of open flame, high temperature and oxidant; Combustion produces stimulating smoke |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; separate from oxidant |
| fire extinguishing agent | dry powder, dry sand, carbon dioxide, foam, 1211 fire extinguishing agent |
| auto-ignition temperature | 887 °F |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 20:45:29
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View History
Propionic ether
5-((BOC-氨基)甲基)呋喃-2-硼酸
1-乙烯基-3-乙基咪唑六氟磷酸盐VEIMPF6
HEXAAMMINENICKEL (II) IODIDE
(1R)-1-[双(叔丁基)膦]-2-[(1SP)-1-[双(2-甲基苯基)膦]乙基]二茂铁
5-特戊酰胺基-4-溴-1-甲基吡唑
2-氟-5-(三氟甲氧基)苄基溴
Amines, C10-14-branched and linear alkyl, compds. with sodium hydrogen [3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonato(3-)][1-[(2-hydroxy-5-nitrophenyl)azo]-2-naphthalenolato(2-)] chromate(1-)
2-[(1H-吡咯并[2,3-B]吡啶-5-基)氧基]-4-溴苯甲酸叔丁酯
5-甲基-7-苯基吡唑并[1,5-A]嘧啶-2-羧酸
5-((BOC-氨基)甲基)呋喃-2-硼酸
1-乙烯基-3-乙基咪唑六氟磷酸盐VEIMPF6
HEXAAMMINENICKEL (II) IODIDE
(1R)-1-[双(叔丁基)膦]-2-[(1SP)-1-[双(2-甲基苯基)膦]乙基]二茂铁
5-特戊酰胺基-4-溴-1-甲基吡唑
2-氟-5-(三氟甲氧基)苄基溴
Amines, C10-14-branched and linear alkyl, compds. with sodium hydrogen [3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonato(3-)][1-[(2-hydroxy-5-nitrophenyl)azo]-2-naphthalenolato(2-)] chromate(1-)
2-[(1H-吡咯并[2,3-B]吡啶-5-基)氧基]-4-溴苯甲酸叔丁酯
5-甲基-7-苯基吡唑并[1,5-A]嘧啶-2-羧酸
Raw Materials for Propionic ether
Downstream Products for Propionic ether