white carbon black (SiO2) / silica dioxide - enhanced tear strength and abrasion resistance

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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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Product Description:

Specifications

Cas no.:7631-86-9
Product: silica / white carbon black/ SiO2
Production process: precipitated, fumed
Capacity: 25000 MT/a

CAS no.:7631-86-9

Product: silica / white carbon black/ SiO2

Production process: precipitated, fumed

Color: white

Appearance: powder or granular

Packing: 10kg/bag, 20kg/bag, per your need, with or w/o pallets

Capacity: 25000 MT/a

Payment: T/T, L/C, DA, DP, etc

Shipment: 2 weeks after your confirmed order

SiO2 / Silica/ White Carbon Black MAIN SPEC:

Main Item

Spec

BET

110~210 (110~ 130, 140~160 , 170-190, 180-210) m2/g

DBP

200~ 350 ( 200~260, 240~280, 240-350, 250-310) mL/100g

Loss on drying (105°C)

8% max

PH (5% sol)

6~8

SiO2

90% min

 

Specific product OF SiO2 / Silica/ White Carbon Black for Rubber:

With special physic-chemical properties, Precipitated silica work as reinforcing transparent fillers highly valued in formulation of rubber-based blends, lead to enhanced tensile strength, tear strength and abrasion resistance and increase hardness of vulcanized rubbers, reduce consumption of rubbers and therefore reduce the cost.

Main spec:

Main Item

Spec

BET

140~160 m2/g

DBP

240~280 mL/100g

Application:

1)      SiO2 / Silica/ White Carbon Black For Light-colored, color and High-grade transparent rubber products.  

2)      SiO2 / Silica/ White Carbon Black For PE, PP, powder products as filler with good fluidity property

3)      SiO2 / Silica/ White Carbon Black As food additives, feed additives, Pesticide carrier with good fluidity and anti-caking property  

4)      SiO2 / Silica/ White Carbon Black For glass cement, sealant, painting, coating, printing ink, as thickener and Anti precipitating agent

5)      SiO2 / Silica/ White Carbon Black for others

Storage: dry, clean, ventilated space    

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Q:Can chemical reaction limits be changed by catalyst or other methods?
According to the principle of chemical equilibrium, the role of the catalyst is to speed up the reaction rate at the same time, but to accelerate (decrease) the multiple is the same, so the catalyst can not change the equilibrium state. Will only change the time to reach the equilibrium state.
Q:Name one case in which catalyst poisoning is useful?
alkynes can react with hydrogen in the presence of a catalyst such as palladium to form alkanes, if they catalyst is poisoned you can produce alkenes instead
Q:Which of the following statements is not true of a catalyst?
A catalyst is something that speeds up a reaction by lowering it's activation energy, that is, minimum amount of energy required for a reaction to occur. Catalyst is added to reaction that have a very high activation energy, and in normal situation reaction will proceed very slowly and too much time is consumed to get any considerable amount of product. The reaction occurs nevertheless. Chemists are usually not concerned with the catalyst, as it is present both in the reactant side and product side unaltered, they are more concerned with the final (new) product formed from the reactants. Since catalyst speeds up a chemical reaction without being permanently altered therefor the answer is C.
Q:Palladium is the main catalyst in chemistry?
Palladium in the chemical mainly to do the catalyst; palladium and ruthenium, iridium, silver, gold, copper and other alloy, can improve the palladium resistivity, hardness and strength, used in the manufacture of precision resistors, jewelry and so on. While the most common and most commercially available palladium jewelery is palladium.
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:Why is the catalyst?
A brief description of restriction endonucleases and DNA ligases: Restriction endonucleases, and DNA ligases, can be said to have nothing to do with energy calculations. In particular, the actual effect of these two enzymes is not to switch between A (DNA) and B (disconnected DNA) states. Restriction endonucleases do not need to open base pairing in addition to the phosphates, whereas the DNA ligase itself is responsible for linking 5'-phosphate and 3'-hydroxy. Which use the energy supply substances, coenzyme are not the same, can not be used as the same reaction is positive and negative process considerations.
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:Chemical Glossary: Catalyst
The catalyst is a substance that can change the rate of the reaction without changing the standard of the reaction Gibbs free, according to the definition of the International Pure and Applied Chemistry (IUPAC) in 1981, Enthalpy change. This effect is called catalysis. The reaction involving the catalyst is a catalytic reaction.
Q:A catalyst?
The best answer is speeds the reaction rate. Generally it lowers the activation energy so that the reaction can proceed easier. Enzymes can be considered catalysts in the body that allow digestion to occur at a temperature like body temp, where it would go faster at a higher temp.
Q:Does a catalyst have an effect on the Gibbs free energy of a reaction?
A catalyst can change the activation energy not the Gibbs energy. The Gibbs energy is the energy difference between the initial state and final state. A catalyst cannot change that. Imagine you are driving from school to home. How you drive do not change the height difference between the school and your home. However, a catalyst can change your path which can change the routine you drive from school to home. So if there is a hill in between your school and you home, you have the choice to drive through it or drive around. Here is a picture: upload.wikimedia.org/wikipedia/co... A catalyst can change the height of the barrier, but cannot alter the initial or final state.

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