Acetal

Price	$1
Package	1kg

Product Details

Product Name: Acetal	CAS No.: 105-57-7
Min. Order: 1 g	Purity: 99%
Supply Ability: 100KG	Release date: 2019/07/06

AD68

Acetal Basic information

Description As a flavor ingredient Synthesis References

Product Name:	Acetal
Synonyms:	diethylacetal,1,1-diethoxyethane;acetaldehyddiethylacetal;2-DIETHYLACETAL;1,1-diethoxyethane acetal;1,1-Diethoxyethane, Acetal, Acetaldehyde diethyl acetal;Acetal, 99%, pure;Acetaldehyde diethyl acetal,1,1-Diethoxyethane, Acetal;Acetal,1,1-Diethoxyethane, Acetal, Acetaldehyde diethyl acetal
CAS:	105-57-7
MF:	C6H14O2
MW:	118.17
EINECS:	203-310-6
Product Categories:	Pharmaceutical Intermediates
Mol File:	105-57-7.mol

Acetal Chemical Properties

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	n20/D 1.379-1.383(lit.)
FEMA	2002 \| ACETAL
Fp	-6 °F
storage temp.	Refrigerator (+4°C) + Flammables area
solubility	46g/l
form	Liquid
color	Clear colorless
explosive limit	1.6-10.4%(V)
Water Solubility	46 g/L (25 ºC)
Merck	14,38
BRN	1098310
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).
CAS DataBase Reference	105-57-7(CAS DataBase Reference)
NIST Chemistry Reference	Ethane, 1,1-diethoxy-(105-57-7)
EPA Substance Registry System	Ethane, 1,1-diethoxy-(105-57-7)

Safety Information

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
TSCA	Yes
HazardClass	3
PackingGroup	II
HS Code	29110000
Hazardous Substances Data	105-57-7(Hazardous Substances Data)
Toxicity	LD50 orally in rats: 4.57 g/kg (Smyth)

MSDS Information

Provider	Language
1,1-Diethoxyacetal	English
SigmaAldrich	English
ACROS	English
ALFA	English

Acetal Usage And Synthesis

Description

Acetal (full name: Acetaldehyde diethyl acetal/1,1-Diethoxyethane) is a major flavoring component of distilled beverages, especially malt whisky and sherry.
Acetaldehyde diethyl acetal is used as a flavoring agent to provide fruit, nut, rum, and whiskey flavors. It can react with diketene to form ethyl 5-ethoxy-3-oxohexanoate in the presence of titanium chloride. It can also be used to synthesize mixed acetal glycosides via transacetalation.

As a flavor ingredient

Identification:

CAS.No.:	105-57-7	FL.No.:	6.001	FEMA.No.:	2002	NAS.No.:	2002

CoE.No.:	35	EINECS.No.:	203-310-6	JECFA.No.:	941

Synthesis

Acetaldehyde diethyl acetal can be obtained by the reaction between ethyl alcohol and acetaldehyde in the presence of anhydrous calcium chloride.

References

Maarse, H. (1991). Volatile Compounds in Foods and Beverages. CRC Press. p. 553. ISBN 0-8247-8390-5.
Zea, Luis; Serratosa, María P.; Mérida, Julieta; Moyano, Lourdes (2015). "Acetaldehyde as Key Compound for the Authenticity of Sherry Wines: A Study Covering 5 Decades". Comprehensive Reviews in Food Science and Food Safety. 14 (6): 681–693.

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

clear, colorless liquid

Uses

Solvent; in synthetic perfumes such as jasmine; in organic syntheses.

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

May irritate the upper respiratory tract. High concentrations act as a central nervous system depressant. Symptoms of exposure include headache, dizziness, drowsiness, abdominal pain, and nausea.

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.

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.]

Company Profile Introduction

Established in 2014,Career Henan Chemical Co. is a manufacturerspecializing in the sale of fine chemicals. Mainly deals in the sales of: Pharmaceutical intermediates OLED intermediates： Pharmaceutical intermediates; OLED intermediates;

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