聚乙醛

Description

2,4,6,8-tetramethyl-1,3,5,7-tetraoxacyclooctane · CAS 108-62-3 · C8H16O4. UNII 4CI033VJYG. Boiling Point: 115 °C (sublimes); Melting Point: 246.2 °C (closed capillary); Flash Point: 97 °F (36 °C) (closed cup).

Identification

CAS Registry Number	108-62-3
PubChem CID	61021
Molecular formula	C8H16O4
IUPAC name	2,4,6,8-tetramethyl-1,3,5,7-tetraoxocane
UNII (FDA)	4CI033VJYG

Computed Descriptors

Molecular Weight	176.21
XLogP3	1.1
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	176.10485899
Monoisotopic Mass	176.10485899
Topological Polar Surface Area	36.9
Heavy Atom Count	12
Formal Charge	0

Physical & Chemical Properties

Boiling Point	115 °C (sublimes)
Melting Point	246.2 °C (closed capillary)
Flash Point	97 °F (36 °C) (closed cup)
Solubility	In water, 222 mg/L at 20 °C
Density	1.27 at 20 °C
Vapor Pressure	6.6X10+3 mPa (5.0X10-2 mm Hg) at 25 °C
LogP	log Kow = 0.12
Heat of Combustion	3370 kJ/mol

Physical description & handling notes

• Metaldehyde is a white-colored crystalline solid. It is insoluble in water. It is highly flammable and when ignited will give off irritating fumes. It may be toxic by ingestion and is very irritating to skin and eyes. It is used to make other chemicals.
• Solid; [IUCLID] Formulated as granules, pellets, mini-pellets, meal, paste, and liquid; [Reference #1] Colorless or white solid; [Reference #2] White odorless powder; [Alfa Aesar MSDS]
• Crystalline powder
• Crystals
• Menthol odor
• In water, 200 mg/L at 17 °C /Polymer/

GHS Hazard Classification

Reported hazard statements	H228, H301, H412, H312 (17.2%), H361 (11.9%), H320, H370, H373

Documented Uses

• Metaldehyde is a molluscicide used to control snails and slugs on a wide variety of sites, including turf, ornamentals, berries, citrus, and vegetables.
• In compressed form as a fuel instead of alcohol; molluscicide. /Polymer/
• Information on 12 consumer products that contain Metaldehyde [BSI:ISO] in the following categories is provided:
• Information on 4 consumer products that contain Metaldehyde in the following categories is provided:
• Prepd by polymerization of acetaldehyde in presence of hydrochloric acid, sulfuric acid @ low temp: Kekule, Zincke, Ann 162, 125 (1872); in presence of pyridine and hydrogen bromide: Wilder, US patent 2,426,961 (1947 to Publicker Ind).
• Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#3513]

Synonyms

METALDEHYDE; 108-62-3; Metacetaldehyde; Slug-Tox; 2,4,6,8-Tetramethyl-1,3,5,7-tetraoxocane; Cekumeta; Acetaldehyde, tetramer; Ariotox; Halizan; Metason; 1,3,5,7-Tetroxocane, 2,4,6,8-tetramethyl-; Metaldehyd; Corry's Slug Death; Metaldeide; Acetaldehyde Tetramer; 2,4,6,8-Tetramethyl-1,3,5,7-tetraoxacyclooctane

Frequently Asked Questions

What are the CAS number and molecular formula of 2,4,6,8-tetramethyl-1,3,5,7-tetraoxacyclooctane?

CAS 108-62-3; molecular formula C8H16O4; molecular weight — g/mol.

What other names is 2,4,6,8-tetramethyl-1,3,5,7-tetraoxacyclooctane known by?

METALDEHYDE, 108-62-3, Metacetaldehyde, Slug-Tox, 2,4,6,8-Tetramethyl-1,3,5,7-tetraoxocane, Cekumeta.

Is 2,4,6,8-tetramethyl-1,3,5,7-tetraoxacyclooctane classified as hazardous?

Hazard statements reported: H228, H301, H412, H312, H361.

What are the key physical properties of 2,4,6,8-tetramethyl-1,3,5,7-tetraoxacyclooctane?

Boiling Point: 115 °C (sublimes); Melting Point: 246.2 °C (closed capillary); Flash Point: 97 °F (36 °C) (closed cup); Solubility: In water, 222 mg/L at 20 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.