Rubber Chemcials Rubber Antioxidant NBC Model

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25 m.t.
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12000 m.t./month

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Product Description:

NDBC (NBC)

 

Chemical Name:Nickel Dibutyl Dithiocarbamate

Molecular Formula:C 18 H36 N 2 S 4 Ni

Molecular Weight:467

CAS No.:13927-77-0

 

Specifications:

 Item

 

 Specifications

 

Appearance

 

Dark-green Power (Granules)

 

Initial Melting Point, °C Min.

 

83

 

Heat Loss , % Max.

 

0.5

Nickel content , %

 

12.0 - 13.0

 

Residue on 150 µm Sieve , % Max.

 

0.10

Residue on 63 µm Sieve , % Max.

 

0.50

 

Properties: Dark-green Power. Density is 1.26g/ cm3 . flashing point is 260°C. Soluble in chloroform, benzene and carbon bisulfide , a little soluble in acetone, insoluble in water.

 

Applications: Mainly use in styrene- butadience rubber, chloroprene rubber and chlorosul-fonated polyethylene rubber. Avoiding the rubber crack for the sunshine and ozone, promoting the heat-resistant of chloroprene rubber and chlorosul-fonated polyethylene rubber. In plastic industry, it can be used as stabilitant and ozone-resistant agent for high polymer materials. It has advantage of stability for polypropylene fibre , thin film and narrow belt, but it will make the products appear yellow-green color. The use level is 0.30.5%. NDBC is regulated for use in articles in contact with food as specified.

 

Packing:Coextruded paper bags lined with polyethylene film bags. Net weight 25 kg per bag.

 

 

Storage:Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight.

 

 

 

 

 

 


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Q:role of catalyst?
A catalyst speeds up the rate of a chemical reaction without actually being consumed by the reaction. There are different types of catalysts for different types of reactions
Q:What is the quality of the catalyst in the chemical reaction,and how much is the catalyst mass?
You can not calculate this question, the quality of the catalyst before and after the same reaction, how much reaction before the reaction on how much
Q:What is positive and negative catalyst in chemistry?
Negative catalysts are, on the other hand, slowing down the positive reaction rate at the same time
Q:catalyst question?
It makes a reaction run faster and better AND it is not used up by the reaction
Q:The chemical equation of heating reaction of benzene and hydrogen under the action of catalyst
C6H6 benzene + 3H2 - (arrow) C6H12 cyclohexane (Ni catalytic heating)
Q:Can Cuo react as a catalyst with H2O2, does its quality and chemical properties change?
Can be, please, upstairs said wrong ... ... ... ... ... ... catalyst is not not to participate in the reaction, the second is because the essence of the catalyst is to participate in the reaction to accelerate the reaction rate of conversion, the catalyst after the reaction will be regenerated, and before and after conservation, quality and Chemical properties do not change. CuO is the catalyst for H2O2 reaction, and the catalytic effect of CuO is better than Mn02!
Q:Comparison of biocatalysts with chemical catalysts!
The same point: biocatalysts and chemical catalysts are selective (specific) and efficient; participate in each reaction, its own nature and quantity will not change.
Q:Copper oxide and ferric oxide can replace manganese dioxide as a catalyst in chemical reaction?
Yes, as long as it is copper ions and iron ions on the line, such as FeCI can
Q:What is the standard for the storage of flammable and explosive chemicals now?
First, the basic requirements of classification of storage Dangerous goods, variety, complex performance, storage, in accordance with the zoning, classification, sub-section of the principle of special storage, set the number, set the number of fixed warehouses, fixed staff (four) custody. Small warehouses should be classified, divided, sub-stack storage, the performance of each other, fire fighting different items, dangerous dangerous goods and other general dangerous goods, should be stored separately.
Q:The greater the chemical adsorption strength, the catalyst activity changes
If the adsorbent is a reactant, then the better the adsorption capacity of the better catalytic effect; but the catalyst surface of the product will generally have adsorption, if this effect has become very strong, then desorption The process will become difficult, the catalytic effect will decline; the other one, if the adsorption of other substances, such as the reaction may produce a reaction or the catalyst will poison the material, it is greatly detrimental to the catalytic effect. The effect is to be controlled in a suitable optimum range for superior, and preferably to be selectively adsorbed.

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