White carbon black(precipitated silica)

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Qingdao
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TT OR LC
Min Order Qty:
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Supply Capability:
20000 m.t./month

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Product Description:

Specifications

White carbon black
1.improve the tensile strength of rubber
2.good reinforcing performance
3.high wear resistance

1.Introduction:

White Carbon Black(Precipitated silica) with special physic-chemical properties, work as reinforcing transparent fillers highly valued in formulation of rubber-based blends. They lead to enhanced tensile strength, tear strength and abrasion resistance and increase hardness of vulcanized rubbers. On the other hand, They reduce consumption of rubbers and therefore reduce the cost.

2.Application:

It is widely used in silicon rubber, constrction sealant, coating, rubber, shoes, medicine, resin processing, printing ink and other industries.
1) Silicon Rubber: Improves silicon rubbers durability, rebound rate, and anti-distortion performance.
2) Plastics Industry: Improves plastic s tenacity, strength and prevents water absorption.
3) Coating Industry: Prevents agglomeration and drip. Thixotropic  additives. Increase denseness and smoothness of paint.
4) Medicine Industry: Increase denseness ,floating , carrying function in medicine. It also can be used as the pesticide powder and anti-agglomeration.

3.Features:

1) Good activity and the absorption rate.
2) High reinforcing effect and chemical stability.
3) Porous surface area.
4) Good dispersibility.

4.Specication:

Type

813

815

900A

SiO2

90

91

94

Residue on sieve(45um)%≤

0.5

0.5

0.5

Heating Loss %≤

7.0

7.0

7.0

Ignition Loss % ≤

7.0

7.0

7.0

PH

6.0-7.0

6.0-7.0

6.0-7.0

Fe mg/kg ≤

300

260

200

DBP cm³/g≤

2.8

2.8

3.0

Specific Surface m²/g

180-220

200-230

220-260

conductivity μs/cm≤

300

150

110

Sulfate % ≤

0.3

0.15

0.1

Bulk Density g/ml

0.16

0.16

0.16

packing

15kg

15kg

15kg

Appearance

White Powder

White Powder

White Powder

Packaging & Delivery

Packaging Detail:10 or 15 kg/bags,double-layer bag (inner layer with PE bag, outer layer with polypropylene bag)
Delivery Detail:2 weeks

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Q:how does the catalyst work (to speed up the reaction)??
Catalysts reduces the activation energy needed for a reaction, that is the energy each atom needed to have in order to have an reaction.
Q:Why are acids and bases good catalysts?
A catalyst is a substance that speeds up a chemical reaction by providing an alternate reaction pathway with a lower activation energy. Catalysts appear not to take part in the reaction. Frequently, catalysts are not very reactive. Acids and bases, on the other hand, are very reactive. Acids (as H+) and bases ( as OH-) sometimes function as catalysts in some organic reactions. They appear to be catalysts because in the course of the mechanism H+ or OH- is regenerated.
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:the heterogenous catalyst ZSM-5 IS used to convert ?
Zeolite-based heterogeneous catalysts are used by industrial chemical companies in the interconversion of hydrocarbons and the alkylation of aromatic compounds. A very good example is the zeolite ZSM-5. This zeolite, developed by Mobil Oil, is an aluminosilicate zeolite with a high silica and low alumininum content. Its structure is based on channels with insecting tunnels. The aluminium sites are very acidic. The substitution of Al3+in place of the tetrahedral Si4+ silca requires the presence of an added postive charge. When this is H+, the acidity of the zeolite is very high. The reaction and catalysis chemistry of the ZSM-5 is due to this acidity. The ZSM-5 zeolite catalyst is used in the petroleum industry for hydrocarbon interconversion. An example use is in the isomerizations of xylene- from meta to para-xylene. The acidic zeolite promotes carbocation isomerizations. There are two suggested mechanisms for this type of isomerizations. Firstly shape may play a role. Perhaps para-xylene has a shape which allows it to diffuse rapidly through the zeolite structure, whereas as meta-xylene takes longer to pass through the zeolite and thus has more opportunity to be converted into the para-xylene. Secondly, is that the orientation of reactive intermediates within the zeolite channels favors specifically para-xylene.
Q:What is the relationship between the chemical reaction rate and the number of activated molecules?
Nothing to do, but with the percentage of activated molecules, is proportional to
Q:What happens to this catalyst ?
If it is only a catalyst, then by definition it will still be there at the end.
Q:Manganese dioxide can be used as a catalyst for various chemical reactions
MnO2 + 4HCl = heating = MnCl2 + Cl2 + 2HCl
Q:Hydrogen and nitrogen in the high temperature and pressure and catalyst conditions for the synthesi
3H2 + N2 = 2NH3 conditional catalyst
Q:Describe the role of a catalyst..........?
a catalyst speeds up the reaction
Q:What is the meaning of catalyst in chemistry?
In the chemical reaction can change the reaction rate of chemical reaction (increase or decrease) without changing the chemical balance, and its own quality and chemical properties in the chemical reaction before and after the material did not change the catalyst.

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