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:Are biological enzymes harmful to humans?
Recently, people are increasingly interested in the use of enzymes in cosmetics, not only from a technical point of view, but also from the market prospects and consumer awareness of these seemingly effective raw materials. Enzymes have been used in laundry detergent for more than 20 years and are linked to long-term performance with the ability to provide and enhance strong stain removal capabilities. According to some speculation, their positive response in the market may be interpreted as satisfying the aging population, the pursuit of younger needs to enhance the performance of cosmetics. The natural shedding process of the skin is controlled by the enzymatic reaction, and the specific enzyme dissolves the cell desmosomes that release the dead epidermal cells. These enzymes are produced in dead keratinocytes. Their active sites are phagocytosed with mercapto groups, and cleavage of peptide bonds in a manner similar to that of thio-glycolic acid and mercaptoalanine (plus derivatives) when the hair is broken. Use these types of enzymes and it
Q:What is the superiority of the catalyst compared to the stoichiometric reagent?
Some enzymes are related to cofactors, and because of the fact that most enzymes are proteins, they are destroyed by high temperatures, strong acids and strong bases.
Q:Carbon dioxide and hydrogen in the catalyst and heating conditions
CO2 + 4H2 = catalyst, heating = 2H2O + CH4
Q:If the college entrance examination questions related to whether the catalyst involved in the reaction, how should I answer.
The catalyst does not participate in the reaction, but play a catalytic role, if the reaction is not called the catalyst
Q:Why the catalyst after the chemical reaction of its quality and chemical properties unchanged
In fact, the catalyst in the reaction process has become other substances, but after the end of the reaction, the catalyst has changed back. That is, the catalyst is actually involved in the reaction, except that the amount of catalyst being reacted is as much as it did.
Q:what is the difference between enzyme and catalyst?
Enzymes and catalysts both affect the rate of a reaction. The difference between catalysts and enzymes is that while catalysts are inorganic compounds, enzymes are largely organic in nature and are bio-catalysts. Even though all known enzymes are catalysts, all catalysts are not enzymes. Moreover, catalysts and enzymes are not consumed in the reactions they catalyze. Catalysts are low molecular weight componds, enzymes are high molecular globular proteins. Catalysts are inorganic, enzymes are organic. Catalyst reaction rates are slower (usually) than enzyme reaction rates. Catalysts are not generally specific - enzymes are VERY specific. Catalysts increase or decrease the rate of a chemical reaction, enzymes are proteins that incrase the rate of chemical reactions & convert the substrate into product. There are 2 types of catalysts - (positive & negative), and the 2 types of enzymes are activation enzymes and inhibitory enzymes. Catalysts are simple inorganic molecules, while enzymes are complex proteins.
Q:The quality and nature of the catalyst before and after the chemical reaction did not change this sentence wrong?
This sentence is true, ah, may practice mistakes in the bar.
Q:Is the chemical reaction rate constant related to the amount of catalyst used?
The decomposition of hydrogen peroxide, manganese dioxide in addition to the catalyst, but also in which it can be considered a carrier (from the surface of manganese dioxide to emit small bubbles, you should be able to see), so the amount of more than certainly can speed up the reaction.
Q:What is the principle of the catalyst?
Because the catalyst does not participate in the reaction, it can change the rate of chemical reactions without any change in itself.
Q:Why are catalysts so effective in small amounts?
Catalysts don't get used up in reactions. Because of this, a single catalyst molecule can function again and again. Some catalysts are better than others for a given reaction. More effective catalysts reduce the time taken for 1/ the rate of travel of the molecule to the active site, 2/ the time the reaction takes, or 3/ the time it takes for products to diffuse away, or 4/ a combination of the above. The more effective a catalyst is in these factors, the less is needed to make it equally effective.

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