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Application of calcium carbimide in prevention of blood fluke

A technology of calcium cyanamide and schistosomiasis, which is applied in the field of calcium cyanamide, can solve the problems of polluting the environment, good molluscicide effect, elimination, etc., and achieves the effect of economic environment and good molluscicide effect

Active Publication Date: 2006-02-08
宁夏大荣化工冶金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Niclosamide is the only chemical molluscicide recommended by the World Health Organization, but the widely used 50% niclosamide ethanolamine salt wettable powder has defects such as poor solubility, low suspension rate, and easy blockage of spraying equipment.
At the same time, niclosamide is used to kill snails, and snails often climb out of the water to escape the action of the drug, and the drug is toxic to fish and expensive
Seriously restricted the popularization and application of niclosamide
[0006] Although sodium pentachlorophenate also has a good molluscicidal effect, it has been gradually eliminated due to environmental pollution
[0010] At present, in terms of preventing the spread of schistosomiasis and apple snails, no molluscicides with good molluscicide effect, no residue, and low toxicity to the environment, humans, animals, and aquatic organisms have been found.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: Oncomelania indoor spraying experiment

[0037] Experimental conditions: indoor temperature is 26° C., relative humidity is 60±5%, experimental equipment: petri dishes (diameter 9 cm), and the number of oncomelanias in each petri dish is 10.

[0038] clear water

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Embodiment 2

[0041] Embodiment 2: Oncomelania indoor spraying experiment

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Embodiment 3

[0045] Embodiment 3: Oncomelania indoor dipping test

[0046] Experimental conditions: indoor temperature is 20°C, relative humidity is 60±5%, experimental equipment: 100ml beakers, the number of oncomelanias in each 100ml beaker is 10, and the selection of oncomelanias is as in Example 1.

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Abstract

The invention relates to the novel use of calcium cyanamide (CaCN2), especially the novel use in preventing schistosomiasis. The disclosed product can effectively eradicate schistosomiasis host oncomelania, eulimidae and amazonian snails. The product can be used to substitute niclosamide.

Description

technical field [0001] The present invention relates to calcium cyanamide (molecular formula CaCN 2 ), especially new applications in the prevention of schistosomiasis. Background technique [0002] Calcium cyanamide is commonly known as lime nitrogen or calcium carbonitride, and its molecular formula is CaCN 2 , Molecular weight: 80.106, physical and chemical properties of lime nitrogen: slightly soluble in water, insoluble in alcohol, easy to absorb moisture and hydrolyze, and the volume increases. The current use of lime nitrogen: used as an alkaline fertilizer, industrially can produce cyanide melt, dicyandiamide, melamine, thiourea, one of the raw materials for the production of herbicides, fungicides, insecticides and other pesticides. At present, the main manufacturers of lime nitrogen in China are: Ningxia Darong Industrial Group Co., Ltd., Ningxia Yinglite Chemical Co., Ltd., Zhejiang Juhua Calcium Carbide Co., Ltd., etc. [0003] Schistosomiasis is prevalent in ...

Claims

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Application Information

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IPC IPC(8): A01N59/06
Inventor 朱振林
Owner 宁夏大荣化工冶金有限公司
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