Rubber Chemcials Rubber Antioxidant NBC Model

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25 m.t.
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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:Chemistry GCSE what is a catalyst?
A catalyst is something that makes a chemical reaction happen faster. An example is when manganese oxide (MnO2) is added to hydrogen peroxide (H2O2), and the hydrogen peroxide starts to break up into water and oxygen. Catalysts are either of natural or synthetic origin. They are useful because they leave no residue in the solution they have sped up. A catalyst also can also be used in a reaction again and again. Catalysts work by lowering the activation energy of a reaction. This allows less energy to be used, thus speeding up the reaction. The opposite of a catalyst is an inhibitor, which slow down reactions
Q:What are the differences between biological catalysts and chemical catalysts?
One occurs in biological systems and the other is in chemical reactions. Biological catalysts are basically enzymes - proteins which regulate biochemical reactions whilst chemical catalysts act on non-biological chemical reactions and are inorganic elements or compounds.
Q:Why are catalysts so effective in small amounts?
By definition, catalysts serve to accelerate certain chemical reactions, by lowering the activation energy required for them to proceed. They are not consumed by the reaction, which is why they are effective in small amounts.
Q:Word editor when playing chemical equation = with the above conditions or how to adjust the size of the catalyst, how to make it centered
Open the word - insert - object - WPS3.0 formula - and then select the "label arrow template", you can add a catalyst.
Q:what is a catalyst ?
OK- First about what a catalyst does. All reactions require some amount of energy to proceed. For most of of these it is not much and it comes from the reactions immediate environment and we don't notice it. This energy needed is called an energy threshold. Many, if not all, reactions can have their thresholds lowered by something else-platinum-nickle in the cars catalytic converter does this. Catalysts are not used in the reaction so the catalyst, once added, stays there and continues working. By the way, in biology we have organic catalysts (the enzymes).
Q:On the issue of chemical reaction catalyst
In the chemical reaction can change the chemical reaction rate of other substances (both can also improve), and its own quality and chemical properties in the chemical reaction before and after the material did not change called catalyst (also known as catalyst)
Q:Whats an ATI Catalyst? read details please?
Catalyst is what ATI calls the drivers for their video cards or video devices built into mainboards. Download the newest video driver for your video card from ATI or from your computer manufacturer's site if the video device came with the computer. Install that, and you should be all set. You may want to check your add and remove programs and remove any of the old, malfunctioning ATI or Catalyst drivers before attempting to install the new one. Good luck!
Q:Chemical reactions in the presence of impurities will cause catalyst poisoning
This is in the chemical balance, but also alone
Q:What is the difference between a catalyst and an oxidizing agent?
A catalyst alters the rate of a reaction without being used up in the reaction. An oxidising agent oxidises other compounds, the agent itself being reduced in the process.
Q:Why is the catalyst?
Only answer lz, the last question and. The reason is that both the restriction endonuclease and the ligase are required for certain reaction conditions and the reaction substrate. And the reaction conditions are different, so that the final results are different, of course, the enzyme is relatively speaking is not so high, perhaps the destruction is always stronger than the building it. The ligase is the need for a specific substrate, three distilled water, temperature, time (long time do not forget the formula) to control, it may have a certain proportion of connection. So this is two questions.

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