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Metaldehyde

Tetra-acetaldehyde is a highly selective molluscicide.It is light blue in appearance, softened in water, with special fragrance and strong attraction.When the snail is attracted by attractant and feeds or comes into contact with the agent, the acetylcholinesterase in the snail body will be released in large quantities, which will destroy the special mucus in the snail body, cause the snail to dehydrate rapidly, paralyze nerves, and secrete mucus. Due to the loss of a large number of body fluids and the destruction of cells, the snail and slugs will be poisoned and die in a short time.The main ingredients are tetra acetaldehyde, carnavir and bait.Low toxicity to humans and livestock, low toxicity to fish, land and aquatic non-target organisms, low toxicity to silkworms.

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Product Details

Molecular weight: 176.21

CAS NO. :108-62-3

Melting point: 194 ℃

Boiling point: 18.6 ℃

Density: 0.808 g/cm³

External view: white acicular crystals

Molecular formula: C8H16O4

Physical and chemical properties:

White needle-like crystal, density: 1.27, melting point: 246℃, sublimation at 115℃, vapor pressure: 6.6Pa (25℃).Insoluble in water, soluble in benzene and chloroform, easy to depolymerize in heat or acid.It has a half-life of 1.4-6.6 days in the soil, no photolysis, no hydrolysis.

Storage method:

Store in a cool, ventilated warehouse.Keep away from fire and heat source.Protect from direct sunlight.The temperature should not exceed 30℃.The package is sealed.Should be stored separately from oxidants and edible chemicals, do not mix storage.Explosion-proof lighting and ventilation facilities are adopted.Do not use mechanical equipment and tools that are prone to spark.The storage area shall be equipped with suitable materials to hold the leakage.

Toxicity:

According to Chinese pesticide toxicity classification standard, this drug is moderately toxic molluscicide.Acute oral LD50=283mg/kg in rats, acute percutaneous LD50>5000mg/kg, acute inhalation LC50>15 mg/ L, acute oral LD50=425mg/kg in mice.No irritation to rabbit skin, slight irritation to eyes.It did not sensitize guinea pigs.There was no teratogenic, mutagenic and carcinogenic effects at the experimental dose, and the non-effective dose in the two-year feeding test was 2.5mg/kg.LC50 (96 hours) :75mg/L for stingray trout, LC50 (48 hours) >90mg/L for Daphnia, EC50 (96 hours) :73.5mg for green algaeLow toxicity to birds, duck LD50:1030mg/kg, quail :181mg/kg.Microtoxic to bees, 300g of bees per hectare did not die.

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