SDDC Sodium Dimethyldithiocarbamate 128-04-1
|Melting point||120-122 °C (dec.)(lit.)|
|Hydrolytic Sensitivity||0: forms stable aqueous solutions|
SODIUM DIMETHYLDITHIOCARBAMATE (SDDC) is one of the important dialkyl dithiocarbamates.
In the rubber industry, it is used as a terminator of emulsion polymerized lower styrene rubber and lower styrene latex, a vulcanization accelerator of rubber products, a bactericidal and Algaecidal and slime preventive agent in industrial water treatment, a bactericidal and Algaecidal agent in petroleum and paper industry, and a pesticide in agriculture
|Product Name||SDDC Sodium dimethyldithiocarbamate|
|Shelf Life||2 years|
|Packing||1kg/bag,25kg/bag or as your requirements|
SDDC is one of the important dialkyl dithiocarbamates, so it has the general characteristics of salt, can produce a series of other metal salts, and has a wide range of social uses.
For example, it can be used as a terminator and vulcanization accelerator in the rubber industry, bactericide and algicide in industrial water treatment, petroleum and papermaking industries, pesticide production in agriculture, and mineral processing agent in the mining industry.
In industry, Sodium dimethyl dithiocarbamate is used as an accelerator and curing agent of natural rubber, synthetic rubber, and latex, and as an additive of lubricating oil in oil processing. It can also be used as an anti-mildew agent for lacquer cloth, which can replace the high toxic anti-mildew agent high mercuric chloride.
SDDC is a protective fungicide in agriculture.
Sodium dimethyl dithiocarbamate is used for leaf spraying, seed treatment, soil treatment, and prevention and control of grain smut, the seedling blight of many crops, fruit trees, vegetables, wheat, and other diseases.
SDDC can also be used as a repellent for beetles, rats, rabbits, and deer. SDDC is a disinfectant and bactericide, which can be made into 1% medicated soap for use.
SDDC is also used as a polymerization terminator of styrene-butadiene rubber. Rubber accelerator TMTD and pesticide thiram are intermediates.
SDDC is used as emulsion polymerized styrene-butadiene rubber, the terminator of styrene-butadiene latex, industrial bactericide, metal precipitant, vulcanization accelerator of rubber products, and agricultural insecticide
Solid SDDC shall be tightly wrapped with black polyethylene tape inside and packed with inner polypropylene woven bag outside.
It shall not be stored in iron containers.
Store in a cool and dry place to prevent moisture and heat.
Handle with care and do not damage the package.
SDDC is stable in an alkaline medium.
It decomposes in case of acidic substances and high temperatures.
It is easy to form a dimer in contact with oxygen and its quality decreases. It should be sealed and stored.
The whole production process of Fumei sodium is divided into six processes: alkali dissolution process, mixing process, synthesis process, cooling crystallization process, centrifugation process, and product packaging and warehousing process.
Alkali dissolving process: first, start the alkali dissolving kettle for stirring, add 3.6 tons of mother liquor, take Jiaolong to transport 600kg flake alkali to the alkali dissolving kettle, control the temperature below 60 ℃, and achieve full dissolution within 3 hours. After the solution is cooled and precipitated, drop the mother liquor containing alkali into the reactor.
Mixing process: under the condition of continuous stirring, 33% dimethylamine is pumped into the reactor containing alkali mother liquor at an approximately constant rate, and the temperature is controlled below 25 ℃.
Synthesis process: under the condition of continuous stirring, the prepared carbon disulfide is slowly dropped into the reactor containing the mixture of dimethylamine and alkali mother liquor through the metering tank.
The temperature of this process is controlled below 35 ℃.
After the addition of carbon disulfide, the reactor is stirred for half an hour.
After the reaction is complete, the temperature is reduced to about 20 ℃.
Cooling crystallization process: the synthetic liquid with complete reaction in the reactor is placed in the middle tank for natural cooling crystallization. Centrifugation can be carried out after a large amount of Fumei sodium is crystallized and precipitated.
Centrifugation process: the solid-liquid mixture obtained in the cooling crystallization process is sent to the centrifuge for centrifugation several times, the mother liquor obtained by centrifugation is placed in the mother liquor tank, and the solid Fumei sodium is sent to the silo.
Packaging process: pour the sodium Fumei in the silo into the automatic packaging machine, set the specifications for automatic packaging, and the conveyor belt will send the packaged finished products to the stacker for automatic stacking, which can be stacked for multiple layers, then push out, and finally transport them to the warehouse by forklift for storage.
The waste gas generated in the whole production process is transmitted to different tail gas towers for tail gas treatment according to different types of waste gas.
The role of nitrogen is mainly to maintain the pressure balance of the container and prevent the blockage of the feed inlet.
The above has introduced the main processes of Fumei sodium production. On the basis of understanding the production principle of Fumei sodium, the following focuses on the important equipment links and control strategies of Fumei sodium, so as to pave the way for the specific realization of the following control.
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* The sample supports testing and inspection.
* Each batch of products will be tested to ensure that its quality meets user needs.
*Packaging can also be made according to customer requirements.
*Any inquiries will be answered by our relevant personnel within 24 hours.
*We will provide you with commercial invoice, packing list, packing list, COA, health certificate and certificate of origin if you need it. If your market has other special requirements, please let us know.
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* You can consult us at any time if you have any questions about the product, and we will answer you in time.
*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.
1. ≤50kg, we recommend express delivery, usually called DDU service;
2. ≤500kg, air transportation is generally recommended, usually called FOB, CFR or CIF service;
3.>500kg, sea freight is generally recommended, usually called FOB, CFR or CIF service;
4. For high-value products, please choose air and express to ensure the safety of the products.
Do you accept sample order?
We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.
How to confirm whether the product quality meets our needs before placing an order?
You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.
What’s your MOQ?
Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.
Do you supply product report?
Yes. We’ll give you product analysis report before shipping.