Scientific selection of new pesticides during the use of fungicides
Vegetables in the process of Growth will have a variety of diseases, so long we need to choose vegetable fungicides to treat these viral diseases one by one:
However, it should be pointed out that the action of this kind of fungicide is relatively simple. Once the action site changes, it will inevitably lead to the resistance of the pathogen. For a long time, cases of drug efficacy reduction due to drug resistance have been common. Production practice shows that In some traditional vegetable producing areas, the resistance of pathogenic bacteria is strong, the use ratio of fungicides is decreasing day by day (currently dropped to 200-300 times), not only the cost of prevention is greatly improved, but also the control effect is 70%-80 in the initial stage. % dropped to the current 30%-40%. Therefore, many experts suggest that while comprehensive prevention and control work should be done comprehensively, it is necessary to scientifically select new pesticides and use them alternately during prevention and treatment.
Calcium Chloride, CaCl2,also named Calcium Chloride Anhydrous , Calcium Chloride Dihydrate 74%, Calcium Chloride 77%. is a common salt. It behaves as a typical ionic halide, and is solid at room temperature. It has several common applications such as brine for refrigeration plants, ice and dust control on roads, and in concrete. It can be produced directly from limestone, but large amounts are also produced as a by-product of the Solvay process. Because of its hygroscopic nature, it must be kept in tightly-sealed containers.
Specifications:
|
Test Item |
Specification |
Result |
|
Content of CaCl2 |
74%-77% |
|
|
NaCl |
≤4% |
3.10% |
|
MgCl2 |
≤0.5% |
0.12% |
|
Ca(OH)2 |
≤0.3% |
0.10% |
|
Sulphate Content (SO42- ) |
≤0.05% |
0.02% |
|
Water Insoluble |
≤0.2% |
0.10% |
|
Heavy metal(as Pb) |
≤10ppm |
Conforms |
|
Arsenic |
≤10ppm |
Conforms |
Product description:
|
Classification |
Chloride
Calcium |
Type: |
Calcium Chloride
|
CAS No.: |
10043-52-4 |
|
Other Names: |
Calcium Chloride |
MF: |
CaCl2 |
EINECS No.: |
233-140-8 |
|
Place of Origin: |
Shandong
China |
Grade Standard: |
Food Grade, Industrial Grade,
Medicine
Grade,
|
Purity:
|
74%-77% 94%-96%
|
|
Appearance |
white powder,
granular, |
Application |
agriculture,
industrial, |
Brand Name: |
XINCHANG
|
Usage:
1. Used in highway, expressway, parking lot and port and as a dryer to dry nitrogen, oxygen, hydrogen, hydrogen chloride and sulfur dioxide etc.
2. Act as dehydration agent when producing alcohol, ester, ether and acrylic acid.
3. Calcium chloride is a kind of important cryogen used by freezing machine and when making ice.
4. It can increase hardness of concrete and increase cold resistance ability of the construction.
5. In port, acts as fog removing agent and dust collecting agent on road and fireproof agent of textile and acts as a protective agent and refining agent used in aluminum magnesium metallurgy.
6. Act as precipitator in producing lake paint. It is a kind of raw material of producing calcium salt. In algae sodium and bean industry it acts as flocculation.
7.Used for oil drilling.
Calcium Chloride
Calcium Chloride,Calcium Chloride Powder,Calcium Chloride Granular,Anhydrous Calcium Chloride
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