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Metaldehyde

Metaldehyde structure

CAS No:
108-62-3
Formula:
C8H16O4
Chemical Name:
Metaldehyde
Synonyms:
1,3,5,7-Tetroxocane,2,4,6,8-tetramethyl-;Metaldehyde;2,4,6,8-Tetramethyl-1,3,5,7-tetroxocane;Acetaldehyde,tetramer;Slugfest;2,4,6,8-Tetramethyl-1,3,5,7-tetraoxacyclooctane;2,4,6,8-Tetramethyl-1,3,5,7-tetraoxocane
Categories:
Organic Chemistry > Aldehydes

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Description

white fine crystalline powder Metaldehyde is a white crystalline powder with a mild menthol odor.

Metaldehyde Basic Attributes

Molecular Weight：

176.21

Exact Mass：

176.21

EC Number：

203-600-2

HScode：

29125000

Characteristics

PSA：

36.9

XLogP3：

0.12

Appearance：

White Fine Crystalline Powder

Density：

1.27 at 20 deg C

Melting Point：

246 °C

Boiling Point：

65°C/15mmHg(lit.)

Flash Point：

50°C

Refractive Index：

1.4220 (estimate)

Water Solubility：

H2O: 0.02 g/100 mL (20 ºC)

Storage Conditions：

0-6°C

Vapor Pressure：

6.6X10+3 mPa (5.0X10-2 mm Hg) at 25 deg C

Toxicity：

Oral-Rat LD50: 227 mg/kg; Oral-Mouse LD50: 200 mg/kg

Odor：

Menthol odor

Safety Information

Packing level：

III

Hazard category：

4.1

Transport codes：

1332

hazard class code：

10-22-2017/10/22

safety instructions：

13-25-46-2

RTECS Number：

XF9900000

Marks：

Storage features：

The warehouse is ventilated, low temperature and dry; stored and transported separately from food materials

Stability/Shelf Life：

Depolymerization occurs slowly on heating, and rapidly above 80 deg C.

Precautionary statement(s)：

P210, P240, P241, P264, P270, P280, P301+P312, P330, P370+P378, P501

Hazard Statements：

H228

Toxicity

Toxicity class：

highly toxic

Metaldehyde Use and Manufacturing

Methods of Manufacturing

The product can be prepared by the method of acetylene hydration or acetaldehyde polymerization in the presence of a catalyst.

Uses

Molluscicide: A tetramer of acetaldehyde, metaldehyde is a molluscicide used in a variety of vegetable and ornamental crops in the field or greenhouse. It may be formulated with or without calcium arsenate and is also available in a mixed formulation with thiram. A U.S. EPA restricted Use Pesticide (RUP).

Material

Acetaldehyde

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