Audited Supplier
LYN
142-59-6
C4h6n2na2s4
205-547-0
Synthesis Material Intermediates
Powder
Industrial
White
ISO 9001
Available
OEM/ODM
3-5day
ZHISHANG
100g; 1kg; 25g
sample free 1kg
China
Product Description
| Melting point | 76-80 °C |
| vapor pressure | Negligible |
| storage temp. | 0-6°C |
| Water Solubility | ca. 200 g l-1 (room temperature) |
| Merck | 13,6367 |
| EPA Substance Registry System | Nabam (142-59-6) |
Sodium senite is disodium ethylene bisdithiocarbamate, which is an important intermediate of bactericides such as mancozeb and mancozeb.
The preparation method is to add clear water to the reaction kettle in advance, add ethylenediamine under stirring, control the reaction temperature to be less than 35°C and start adding carbon disulfide dropwise. After the dropwise addition is completed, keep the reaction material temperature at about 30°C and continue stirring for 30 minutes. When the pH of the medium is ≤9, start adding 20% sodium hydroxide aqueous solution to the reaction kettle in batches. When adding alkali, the reaction temperature is controlled at about 35ºC. After each batch of sodium hydroxide is added, the pH of the reaction solution is controlled to be ≤9 before adding A batch of sodium hydroxide under the Chemicalbook. After all the sodium hydroxide has been added, continue the heat preservation reaction for 1 hour, take a sample and observe that there are no obvious oil droplets in the material, that is, the end of the reaction has been reached, and the temperature is lowered to 25°C. Stop stirring and stand still to separate the unreacted carbon disulfide. The light yellow liquid is the aqueous solution of sodium daisen. There are one-step and two-step methods for the synthesis of sodium daisen. The two-step method is adopted in China. This method is conducive to controlling the formation of by-product sodium trithiocarbonate, so the product quality is good and the yield is also high.
Packing
· 1kg/aluminium foil bag, with two plastic bags inside.
· 25kg/fiber drum, with two plastic bags inside.
Size:ID 42cm*H52cm,0.08m3/drum;
Net Weight:25kgs Gross Weight:28kgs.
Delivery
- ≤50kg, Express delivery recommended, usually called as DDU service;
- ≤500kg,Air shipping recommended, usually called as CIF service;
- >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;
- For high value products, please select air shipping and express delivery for safety.
About us
Shandong Zhishang Chemical Co.,Ltd owned by Zhishang International Group,is a new chemical enterprise with R&D.
manufacture and sales department.
Our company mainly produce pharmaceutical raw materials and intermediate(expecially Carbohydrate derivatives series).
In recent years,we had made big breakthrough in feed additive,plant extraction,industrial chemicals line.
With our "Honest operation,Quality controlling,Clients first"theory,our company enjoy good repute both home and abroad.
The R&D center located in High-tech zone in Jinan,our production based is in Chemical park of Zhangqiu and Tai'an.Our production process strictly conform with ISO 9001 and ISO 2000 standard.Our lab and workshop also follows strictly with GMP standard.Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term and stable business relations.We have large scale liquid chemical terminal and professional chemical warehouse.
We will always adhere to expand business scope and provide the best quality products and service to the world.
- DO YOU ACCEPT SAMPLE ORDER?
We accept sample orders. We will make samples before mass production, and after sample approved, we'll begin mass production. Doing 100% inspection during production, then do random inspection before packing.
2.HOW TO CONFIRM THE PRODUCT QUALITY BEFORE PLACING ORDERS?
You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
3.WHAT'S YOUR MOQ?
Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
4.DO YOU SUPPLY PRODUCT REPORT?
Yes. We'll give you product analysis report before shipping.
5.IS THERE A DISCOUNT?
Different quantity has different discount.
Our Advantage
10 Years Experience
Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term.
Quality service
Company cooperates with research institutes. We strictly control the process of raw materials up to finished product.
24 hour service
Quick and clear response to customers questions. Warm after sale service, we will help to solve the problems in your usage.High quality
Dedicated to serving customers first, we provide reasonable prices, high quality products.
