110-74-7 Usage
Chemical Properties
Different sources of media describe the Chemical Properties of 110-74-7 differently. You can refer to the following data:
1. CLEAR COLORLESS LIQUID
2. Propyl formate has a characteristic fruity (rum–plum) odor and a corresponding bittersweet flavor.
Occurrence
Reported found in plum, brandy, apple, black currant, and pineapple.
Uses
Different sources of media describe the Uses of 110-74-7 differently. You can refer to the following data:
1. Propyl formate was used in the synthesis of the radicals - CH3CH2CHOCHO, CH3CHCH2OCHO, and CH2CH2CH2OCHO by TiCl3.H2O2 radical-generating method.
2. Flavoring.
Preparation
By action of sulfuric acid on a mixture of propyl alcohol, formic acid and sodium formate; also by distilling propyl alcohol
with anhydrous formic acid in the presence of sodium formate.
Taste threshold values
Taste characteristics at 50 ppm: fruity, green and ethereal with a berry lift.
General Description
A clear colorless liquid with a pleasant odor. Flash point 27°F. Slightly soluble in water and less dense than water. Hence floats on water. Vapors are heavier than air.
Air & Water Reactions
Highly flammable. Slightly soluble in water.
Reactivity Profile
PROPYL FORMATES are esters. React with acids to liberate heat along with propanols and formic acid. Strong oxidizing acids may cause a reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by interaction with caustic solutions. Flammable hydrogen is generated by mixing with alkali metals and hydrides.
Hazard
Flammable, dangerous fire risk.
Health Hazard
May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.
Fire Hazard
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Safety Profile
Moderately toxic by
ingestion. An irritant to skin, eyes, and
mucous membranes. Narcotic in high
concentration. Dangerous fire hazard when
exposed to heat, flame, or oxidizers. Ignites
on contact with potassium-tert-butoxide.
Explosive in the form of vapor when
exposed to heat or flame. To fight fire, use
alcohol foam. When heated to
decomposition it emits acrid smoke and
irritating fumes. See also ESTERS.
Purification Methods
Distil the formate, then wash it with saturated aqueous NaCl, and with saturated aqueous NaHCO3 in the presence of solid NaCl, dry it with MgSO4 and fractionally distil it. [Beilstein 2 IV 26.]
Check Digit Verification of cas no
The CAS Registry Mumber 110-74-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,1 and 0 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 110-74:
(5*1)+(4*1)+(3*0)+(2*7)+(1*4)=27
27 % 10 = 7
So 110-74-7 is a valid CAS Registry Number.
InChI:InChI=1/C4H8O2/c1-2-3-6-4-5/h4H,2-3H2,1H3
110-74-7Relevant articles and documents
Conversion of fructose into 5-hydroxymethylfurfural and alkyl levulinates catalyzed by sulfonic acid-functionalized carbon materials
Liu, Ruliang,Chen, Jinzhu,Huang, Xing,Chen, Limin,Ma, Longlong,Li, Xinjun
, p. 2895 - 2903 (2013)
A series of sulfonic acid-functionalized carbon materials (C-SO 3H), including poly(p-styrenesulfonic acid)-grafted carbon nanotubes (CNT-PSSA), poly(p-styrenesulfonic acid)-grafted carbon nanofibers (CNF-PSSA), benzenesulfonic acid-grafted CMK-5 (CMK-5-BSA), and benzenesulfonic acid-grafted carbon nanotubes (CNT-BSA), have been studied for fructose dehydration to 5-hydroxymethylfurfural (HMF) and fructose alcoholysis to alkyl levulinate. A study for optimizing the reaction conditions such as the catalyst loading, the reaction time, and the temperature has been performed. Under the optimal conditions, high HMF and ethyl levulinate yields of up to 89% and 86%, respectively, are obtained. The catalytic activities of C-SO3H for the conversions of fructose into both HMF and ethyl levulinate follow the order of their acid strength. The relationship between the catalytic activity and acid density of C-SO3H shows a linear correspondence in the fructose dehydration to HMF. The facile separation, ease of recovery, and high thermal stability make the developed C-SO3H efficient and environment-friendly catalytic materials for transforming biomass carbohydrate into fine chemicals.
Selective aerobic oxidation of cyclic ethers to lactones over Au/CeO2 without any additives
Liu, Shulin,Li, Shaopeng,Shen, Xiaojun,Wang, Yanyan,Du, Juan,Chen, Bingfeng,Han, Buxing,Liu, Huizhen
supporting information, p. 2638 - 2641 (2020/03/10)
Selective oxidation of ethers to lactones with O2 as a benign oxidant using Au/CeO2 as the catalyst has been developed. The oxygen vacancies and Au0 species on the surface of CeO2 contribute to the activation of O2. The excellent selectivity of lactones is due to the adsorption of ethers and activation of the C(sp3)-H bond on Au/CeO2.
Facile aromatisation of Hantzsch 1,4-dihydropyridines by autoxidation in the presence of p-toluenesulfonic acid in acetic acid
Zhang, Ding,Sha, Min
, p. 141 - 144 (2018/04/20)
A simple protocol to achieve the aromatisation of Hantzsch dihydropyridines in high yield was established using p-toluenesulfonic acid in acetic acid and yields of 90% were obtained at room temperature. With regards to the Hantzsch 1,4-dihydropyridines derived from alkyl aldehydes bearing one or more á-hydrogens, dealkylation products were obtained through a proposed autoxidation mechanism.