Paraldehyde manufacturers and suppliers

Paraldehyde suppliers

Properties

Melting point:: 12 °C

Boiling point:: 65-82 °C

Density: 0.994 g/mL at 20 °C (lit.)

vapor density: 1.52 (vs air)

vapor pressure: 25.89 psi ( 55 °C)

refractive index: n20/D 1.39

FEMA: 4010 | PARALDEHYDE

Flash point:: 30 °F

storage temp.: 2-8°C

solubility: 120g/l

pka: 16(at 25℃)

form: solution

color: Colorless liquid

Specific Gravity: 0.994

Odor: disagreeable taste, aromatic odor

explosive limit: 1.3-17.0%(V)

Water Solubility: 125 g/L (25 ºC)

Thermal Conductivity: 0.139 W/(m·K) at 25 ℃

Merck: 13,7098

JECFA Number: 2299

BRN: 80142

Henry's Law Constant: 5.8×10^-1 mol/(m³Pa) at 25℃, Duchowicz et al. (2020)

Dielectric constant: 14.5(20℃)

Stability:: Stable. Flammable. Incompatible with strong oxidizing agents, mineral acids.

InChI: 1S/C6H12O3/c1-4-7-5(2)9-6(3)8-4/h4-6H,1-3H3

InChIKey: SQYNKIJPMDEDEG-UHFFFAOYSA-N

SMILES: CC1OC(C)OC(C)O1

LogP: 0.670

CAS DataBase Reference: 123-63-7(CAS DataBase Reference)

NIST Chemistry Reference: Paraldehyde(123-63-7)

EPA Substance Registry System: Paraldehyde (123-63-7)

Safety Information

Symbol(GHS): GHS02,GHS07,GHS08

Signal word: Danger

Hazard statements: H302-H315-H319-H370-H372-H226

Precautionary statements: P501-P260-P270-P240-P210-P233-P243-P241-P242-P264-P280-P370+P378-P337+P313-P305+P351+P338-P308+P311-P362+P364-P303+P361+P353-P332+P313-P301+P312+P330-P403+P235-P405

PPE: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Hazard Codes: F

Risk Statements: 11-R11-10

Safety Statements: 9-16-29-33-S9-S33-S29-S16

RIDADR: UN 1264

WGK Germany: 1

RTECS: YK0525000

Autoignition Temperature: 235 °C

TSCA: TSCA listed

HazardClass: 3

PackingGroup: III

HS Code: 29125000

Storage Class: 3 - Flammable liquids

Hazard Classifications: Flam. Liq. 3

Hazardous Substances Data: 123-63-7(Hazardous Substances Data)

Toxicity: LD50 orally in rats: 1.65 g/kg (Figot)

REACH Registrations: Active

Use

Paraldehyde is used primarily in medicine. It is used as a hypnotic agent, in delirium tremens; and in treatment of psychiatric states characterized by excitement when drugs must be given over a long period of time. It also is administered for intractable pain which does not respond to opiates and for basal and obstetrical anesthesia. It is effective against experimentally induced convulsions and has been used in emergency therapy of tetanus, eclampsia, status epilepticus; and poisoning by convulsant drugs. Since it is used primarily in medicine, the chance of accidental human exposure or environmental contamination is low. However, paraldehyde decomposes to acetaldehyde and acetic acid; these compounds have been found to be toxic. In this case, occupational exposure or environmental contamination is possible. Since paraldehyde is prepared from acetaldehyde by polymerization in the presence of an acid catalyst, there exists a potential for adverse effects, although none have been reported in the available literature. It is also used in the manufacture of organic compounds.

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