White carbon black(precipitated silica) System 1

White carbon black(precipitated silica) System 2

White carbon black(precipitated silica) System 3

White carbon black(precipitated silica)

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Loading Port:: Qingdao

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 20000 m.t./month

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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

Q:Chemical "catalyst can speed up the chemical reaction rate of other substances," this sentence right?: Wrong, the catalyst is divided into two kinds, one is to speed up the chemical reaction speed, and the other is the opposite

Q:What is the catalyst condition in the chemical equation?: Do you want to play on your computer? Trouble ah ~ no you add brackets it ~ word may be able to try ~ I have not studied ~ now look ~

Q:how could scientists know the exact catalyst for every reactions??? THANX sooo much: Believe me, nema, there's no way that we chemists know the best catalyst for every reaction. That would be simply impossible. However, from the type of reaction, the reactants, products, reaction conditions, solvents, etc. and from one's experience and the literature (papers and patents) one can get a good idea for most reactions of the type of catalyst that has worked for similar systems. One then starts off with a catalyst from the literature and modifies or changes it if improvement is needed based on chemical principles that one learns. There are also some theoretical calculations that can be made. Sometimes they work and sometimes they don't :) If it is an industrially important process like the Haber process for making ammonia from nitrogen gas and hydrogen gas, there may be thousands of catalysts which have been tried and evaluated. New minor improvements are being made every day. When a company does find a very good catalyst for an important reaction, often they keep it a trade secret. The good catalyst can make a huge difference in how commercially successful a particular process is. That's a large part of what chemical engineers do. You may never know if you have the best catalyst. The most you can hope for is one that is good enough. So it's a few parts personal knowledge, a few parts literature, a couple of parts theory, a lot of experimentation and often, more than not, a little luck. :)

Q:Chemical equation if there is a catalyst and heating, which write in the equal sign above, which written in the following? Tomorrow academic level test, solution: At the same time, the catalyst is written on, and the heating symbol is written under the equal sign. Only one is written on the equal sign

Q:In the chemical reaction, why can the catalyst speed up the reaction rate: Iron catalyzes nitrogen and hydrogen synthesis of ammonia, and no iron reaction occurs almost.

Q:Junior high school chemistry - chemical reaction before and after the quality and chemical properties of the material must be the catalyst?: It is not always possible that the equivalent reaction, i.e. one or more of the reactants, is the same as the relative atomic mass of one or more of the products and the coefficients in the chemical equation are the same

Q:What is the definition and function of the catalyst in chemistry?: Definition: in the chemical reaction can change the chemical reaction rate of other substances, and its own quality and chemical properties before and after the reaction did not change the material called catalyst, also known as catalyst. The role of the catalyst in the chemical reaction is called catalysis. The use of a catalyst only changes the rate of chemical reaction and does not alter the quality of the product.

Q:what is a catalyst?: a catalyst is a substance that affects the rate of rxn without actually being consumed in the rxns . a catalyst doesnt become a part of the products. catalystss are of two types 1 POSITIVE CATALYST . it increases the rate of rxn . that is the products are formed faster . eg sunlight in a photochemical rxn is a positive catalyst 2 NEGATIVE CATALYST - which slow down a rxn . like addition of glyceriene to hydrogen peroxide slows down its decomposition

Q:The last question asked no one answered this question.: No other, is the test, so I put the pit out of the theory ... ...

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