Acetaldehyde manufacturers and suppliers

Acetaldehyde suppliers

Properties

Melting point:: -125 °C (lit.)

Boiling point:: 21 °C (lit.)

Density: 0.785 g/mL at 25 °C (lit.)

vapor density: 1.03 (vs air)

vapor pressure: 52 mm Hg ( 37 °C)

FEMA: 2003 | ACETALDEHYDE

refractive index: n20/D 1.377

Flash point:: 133 °F

storage temp.: 2-8°C

solubility: alcohols: soluble

pka: 13.57(at 25℃)

form: solution

color: White to off-white

Specific Gravity: 0.823 (20/4℃) (?90% Soln.)

Odor: Pungent, fruity odor detectable at 0.0068 to 1000 ppm (mean = 0.067 ppm)

PH: 5 (10g/l, H2O, 20℃)

explosive limit: 4-57%(V)

Odor Threshold: 0.0015ppm

Odor Type: ethereal

Water Solubility: > 500 g/L (20 ºC)

Sensitive: Air Sensitive

Merck: 14,39

JECFA Number: 80

BRN: 505984

Henry's Law Constant: 7.69 at 25 °C (Snider and Dawson, 1985:Benkelberg et al., 1995)

Exposure limits: TLV-TWA 180 mg/m³ (100 ppm) (ACGIH), 360 mg/m³ (200 ppm) (NIOSH); STEL 270 mg/m³ (150 ppm); IDLH 10,000 ppm.

Dielectric constant: 21.8（5℃）

Stability:: Stable, but air sensitive. Substances to be avoided include strong oxidizing agents, strong acids, reducing agents, alkalies, halogens, halogen oxides. Highly flammable. Vapour/air mixtures explosive over a very wide concentration range. May form peroxides in storage.

InChIKey: IKHGUXGNUITLKF-UHFFFAOYSA-N

LogP: -0.16

Safety Information

Symbol(GHS): GHS02,GHS07,GHS08

Signal word: Danger

Hazard statements: H225-H319-H335-H341-H350

Precautionary statements: P202-P210-P233-P240-P305+P351+P338-P308+P313

Hazard Codes: T,Xn,F+,F

Risk Statements: 23/24/25-34-40-43-36/37-12-67-11-41-22-10-19

Safety Statements: 36/37-33-16-26

RIDADR: UN 1198 3/PG 3

WGK Germany: 2

RTECS: LP8925000

F: 10

Autoignition Temperature: 185 °C

TSCA: Yes

HazardClass: 3

PackingGroup: I

HS Code: 29121200

Toxicity: LD50 orally in rats: 1930 mg/kg (Smyth)

IDLA: 2,000 ppm

Use

Acetaldehyde is also known as ethanal, acetaldehyde is miscible with H2O, alcohol, or ether in all proportions. Because of its versatile chemical reactivity, acetaldehyde is widely used as a commencing material in organic syntheses, including the production of resins, dyestuffs, and explosives. The compound also is used as a reducing agent, preservative, and as a medium for silvering mirrors. In resin manufacture, paraldehyde (CH3CHO)3 sometimes is preferred because of its higher boiling and flash points.

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