Metaldehyde

Metaldehyde
  • CAS No.:9002-91-9
Other grades of this product :
Metaldehyde Basic information
Product Name:Metaldehyde
Synonyms:METASON;METASON(R);META(R)METALDEHYDE;META;META ACETALDEHYDE;LIMATOX(R);HARDY;HAZILAN
CAS:9002-91-9
MF:CH2O
MW:30.03
EINECS:618-341-4
Product Categories:INSECTICIDE;Polymers;H-M;Pesticides Standards;Alpha sort;Alphabetic;Analytical Standards;Analytical/Chromatography;Building Blocks;C15 to C38;Carbonyl Compounds;Chemical Synthesis;Chromatography;Environmental Standards;Ketones;M;META - METH;Metabolites;Molluscicides;Organic Building Blocks;Pesticides &amp
Mol File:9002-91-9.mol
Metaldehyde Chemical Properties
Melting point 190-196 °C (subl.)(lit.)
Boiling point 267.82°C (rough estimate)
density 0,808 g/cm3
refractive index 1.4455 (estimate)
Fp 50 °C
storage temp. 0-6°C
form powder
Water Solubility 0.2g/L(17 ºC)
Merck 14,5923
CAS DataBase Reference9002-91-9(CAS DataBase Reference)
EPA Substance Registry SystemAcetaldehyde, homopolymer (9002-91-9)
Safety Information
Hazard Codes Xn,T,F
Risk Statements 10-22-23-11
Safety Statements 13-23-46-45
RIDADR UN 1332 4.1/PG 3
WGK Germany 1
RTECS AB3042000
HazardClass 4.1
PackingGroup III
HS Code 29125000
ToxicityAcute oral LD50 for dogs 0.6–1.0 g/kg (Worthing and Hance, 1991).
MSDS Information
ProviderLanguage
Acetaldehyde homopolymer English
SigmaAldrich English
ACROS English
ALFA English
Metaldehyde Usage And Synthesis
Chemical PropertiesWhite crystalline powder
UsesMETA(R) Metaldehyde is a highly effective active ingredient to control slugs and snails (molluscicide) WWW Link
UsesIn compressed form as a fuel instead of alcohol; molluscicide.
UsesMolluscicide.
DefinitionA solid compound,C4O4H4(CH3)4, formed by polymerizationof ethanal (acetaldehyde) in diluteacid solutions below 0°C. Thecompound, a tetramer of ethanal, isused in slug pellets and as a fuel forportable stoves.
DefinitionA polymer of acetaldehyde in which n usually is 4–6.
HazardFlammable, dangerous fire risk. Strong irritant to skin and mucous membranes.
CarcinogenicityThere is no evidence in the literature that metaldehyde has carcinogenic potential.
Environmental FatePlant. When applied to citrus rinds, 50% was lost after 4.6 days for the first 33 days and an additional 25% was lost 14 days for the subsequent 26 days (Iwata et al., 1982). Chemical/Physical. Metaldehyde can be converted to acetaldehyde by heating to 150°C for 4–5 hours or by the reaction of concentrated hydrochloric acid (6 M) for a couple of minutes (Booze and Oehme, 1985).
Metaldehyde Preparation Products And Raw materials
Preparation Products1-Chloroethylethylether

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