Acetal
- CAS No.
- 105-57-7
- Chemical Name:
- Acetal
- Synonyms
- 1,1-DIETHOXYETHANE;ACETALDEHYDE DIETHYL ACETAL;DIETHYL ACETAL;FEMA 2002;1,1-diethoxy-ethan;1,1-DIETHOXYACETAL;1,1-diethoxyethane acetal;acetal (acetaldehyde diethyl acetal);ACETAL;acetaal
- CBNumber:
- CB5852662
- Molecular Formula:
- C6H14O2
- Molecular Weight:
- 118.17
- MOL File:
- 105-57-7.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/8/21 22:41:43
| Melting point | -100 °C |
|---|---|
| Boiling point | 103 °C |
| Density | 0.831 g/mL at 25 °C(lit.) |
| vapor density | 4.1 (vs air) |
| vapor pressure | 20 mm Hg ( 20 °C) |
| refractive index |
n |
| FEMA | 2002 | ACETAL |
| Flash point | -6 °F |
| storage temp. | Store at +2°C to +8°C. |
| solubility | 46g/l |
| form | Liquid |
| color | Clear colorless |
| Odor | at 1.00 % in propylene glycol. ether green nut earthy sweet vegetable |
| Odor Type | ethereal |
| explosive limit | 1.6-10.4%(V) |
| Water Solubility | 46 g/L (25 ºC) |
| Merck | 14,38 |
| JECFA Number | 941 |
| BRN | 1098310 |
| Dielectric constant | 3.6（21℃） |
| Stability | Stable. Highly flammable. May form peroxides in storage. Test for peroxides before use. Vapors may form an explosive mixture with air, and may travel to source of ignition and flash back. Vapors may spread along ground and collect in low or confined areas (sewers, basements, tanks). |
| InChIKey | DHKHKXVYLBGOIT-UHFFFAOYSA-N |
| LogP | 0.84 |
| CAS DataBase Reference | 105-57-7(CAS DataBase Reference) |
| NIST Chemistry Reference | Ethane, 1,1-diethoxy-(105-57-7) |
| EPA Substance Registry System | Diethyl acetal (105-57-7) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS02,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H225-H315-H319 | |||||||||
| Precautionary statements | P210-P233-P240-P241-P303+P361+P353-P305+P351+P338 | |||||||||
| Hazard Codes | F,Xi | |||||||||
| Risk Statements | 11-36/38 | |||||||||
| Safety Statements | 9-16-33 | |||||||||
| RIDADR | UN 1088 3/PG 2 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | AB2800000 | |||||||||
| Autoignition Temperature | 446 °F &_& 446 °F | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 29110000 | |||||||||
| Toxicity | LD50 orally in rats: 4.57 g/kg (Smyth) | |||||||||
| NFPA 704 |
|
Acetal price More Price(20)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | W200220 | Acetal natural, FG, ≥97% | 105-57-7 | 1SAMPLE-K | ₹5347.55 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | W200204 | Acetal ≥98%, FG | 105-57-7 | 1SAMPLE | ₹5141.88 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | W200220 | Acetal natural, FG, ≥97% | 105-57-7 | 100G | ₹9601.78 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | W200204 | Acetal ≥98%, FG | 105-57-7 | 1KG | ₹16345.75 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | W200220 | Acetal natural, FG, ≥97% | 105-57-7 | 1KG | ₹43115.98 | 2022-06-14 | Buy |
Acetal Chemical Properties,Uses,Production
Description
Acetal is a clear, colourless, and extremely flammable liquid with an agreeable odour. The vapour is susceptible to cause flash fire. Acetal is sensitive to light and, on storage, may form peroxides. In fact, it has been reported to be susceptible to autoxidation and should, therefore, be classified as peroxidisable. Acetal is incompatible with strong oxidising agents and acids.
Chemical Properties
Acetal is a clear, colorless, and extremely fl ammable liquid with an agreeable odor. The vapor may cause fl ash fi re. Acetal is sensitive to light and on storage may form peroxides. In fact, it has been reported to be susceptible to autoxidation and should, therefore, be classifi ed as peroxidizable. Acetal is incompatible with strong oxidizing agents and acids.
Occurrence
Present.in.some.liquors.(e.g.,.sake,.whiskey.and.cognac);.also.detected.and.quantitatively.assessed.in.rums.. Found.in.apple.juice,.orange.juice,.orange.peel.oil,.bitter.orange.juice,.strawberry.fruit,.raw.radish,.Chinese.quince.fruit,.Chinese. quince.flesh,.udo.(Aralia cordata Thunb.)
Uses
Acetaldehyde diethyl acetal is used as a flavoring agent to provide fruit, nut, rum, and whiskey flavors.
Preparation
From.ethyl.alcohol.and.acetaldehyde.in.the.presence.of.anhydrous.calcium.chloride.or.small.amounts.of.mineral. acids.(HCl).
Definition
A type of organic compound formed by addition of an alcohol to an aldehyde. Addition of one alcohol molecule gives a hemiacetal. Further addition yields the full acetal. Similar reactions occur with ketones to produce hemiketals and ketals.
General Description
A clear colorless liquid with a pleasant odor. Boiling point 103-104°C. Flash point -5°F. Density 0.831 g / cm3. Slightly soluble in water. Vapors heavier than air. Moderately toxic and narcotc in high concentrations.
Air & Water Reactions
Highly flammable. Forms heat-sensitive explosive peroxides on contact with air. Slightly soluble in water.
Reactivity Profile
Acetal can react vigorously with oxidizing agents. Stable in base but readily decomposed by dilute acids. Forms heat-sensitive explosive peroxides on contact with air. Old samples have been known to explode when heated due to peroxide formation [Sax, 9th ed., 1996, p. 5].
Health Hazard
Exposures to acetal cause irritation to the eyes, skin, gastrointestinal tract, nausea, vomit- ing, and diarrhea. In high concentrations, acetal produces narcotic effects in workers.
Fire Hazard
Highly flammable; flash point (closed cup) -21°C (-6°F); vapor density 4.1 (air = 1), vapor heavier than air and can travel some distance to a source of ignition and flash back; autoignition temperature 230°C (446°F); vapor forms explosive mixtures with air, LEL and UEL values are 1.6% and 10.4% by volume in air, respectively (DOT Label: Flammable Liquid, UN 1088). .
Industrial uses
Acetal homopolymer resins have high tensilestrength, stiffness, resilience, fatigue endurance,and moderate toughness under repeatedimpact. Some tough grades can deliver up to 7times greater toughness than unmodified acetalin Izod impact tests and up to 30 times greatertoughness as measured by Gardner impact tests.
Automotive applications of acetal homopolymerresins include fuel-system and seat-beltcomponents, steering columns, window-supportbrackets, and handles. Typical plumbingapplications that have replaced brass or zinccomponents are showerheads, ball cocks, faucetcartridges, and various fittings. Consumer itemsinclude quality toys, garden sprayers, stereocassette parts, butane lighter bodies, zippers,and telephone components. Industrial applicationsof acetal homopolymer include couplings,pump impellers, conveyor plates, gears, sprockets,and springs.
Safety Profile
Moderately toxic by ingestion, inhalation, and intraperitoneal routes.A skin and eye irritant. A narcotic. Dangerous fire hazard when exposed to heat or flame; can react vigorously with oxidizing materials. Forms heat-sensitive explosive peroxides on contact with air. when heated to decomposition it emits acrid smoke and fumes. See also ETHERS and ALDEHYDES.
Potential Exposure
Used as a solvent; in synthetic perfumes, such as jasmine, cosmetics, flavors; in organic synthesis.
Metabolism
When acetal was fed at a level of 5% in the diet for 6 days, availability of energy was 64% in chicks and 29% in rats (Yoshida et al. 1970 & 1971). Acetal is rapidly hydrolysed in the stomach(Knoefel, 1934). The resulting acetaldehyde is readily oxidized to acetic acid and eventually to carbon dioxide and water(Williams, 1959).
Shipping
UN1088 Acetal, Hazard Class: 3; Labels: 3-Flammable liquid. UN1988 Aldehydes, flammable, toxic, n.o.s., Hazard Class: 3; Labels: 3-Flammable liquid, 6.1-Poisonous materials, Technical Name Required
Purification Methods
Dry acetal over Na to remove alcohols and H2O, and to polymerise aldehydes, then fractionally distil. Or, treat it with alkaline H2O2 at 40-45o to remove aldehydes, then saturate with NaCl, separate, dry with K2CO3 and distil it from Na [Vogel J Chem Soc 616 1948]. [Beilstein 1 IV 3103.]
Incompatibilities
Aldehydes are frequently involved in self-condensation or polymerization reactions. These reactions are exothermic; they are often catalyzed by acid. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react with air to give first peroxo acids, and ultimately carboxylic acids. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction). The addition of stabilizers (antioxidants) to shipments of aldehydes retards autoxidation. Presumed to form explosive peroxides on contact with air and light. May accumulate static electrical charges, and may cause ignition of its vapors.
Waste Disposal
Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.
Acetal Preparation Products And Raw materials
Raw materials
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chevron_right| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| GLR Innovations | +91 9891111994 | New Delhi, India | 4542 | 58 | Inquiry |
| GODAVARI BIOREFINERIES LTD | 9769972334 | Maharashtra, India | 26 | 58 | Inquiry |
| JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
| Pharmaffiliates Analytics and Synthetics P. Ltd | +91-172-5066494 | Haryana, India | 6773 | 58 | Inquiry |
| HiMedia Laboratories | 91-22-61471919 | Maharashtra, India | 1843 | 58 | Inquiry |
| Godavari Biorefineries Ltd - GBL (Somaiya Group) | 91-22-61702100 | Maharashtra, India | 18 | 58 | Inquiry |
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6778 | 58 | Inquiry |
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5873 | 58 | Inquiry |
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
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