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: Is it faster or slower? The What if you do not?: Reduce or increase the energy required for the reaction, can also slow down, do not have no effect on the reaction

Q: What is the effect of the catalyst in chemistry?: In fact, the catalyst in the chemical reaction is not the reaction of the role, but to play a role in accelerating the speed of chemical reaction, it is like a reaction to an hour, but joined a certain catalyst, the reaction speed A lot, as long as half an hour to react to play, the catalyst as long as properly handled, but also can be recycled, the students do not have any chemical changes

Q: Name one case in which catalyst poisoning is useful?: Usually, catalyst poisoning is undesirable as it leads to a loss of usefulness of expensive noble metals or their complexes. However, poisoning of catalysts can be used to improve selectivities of reactions. In the classical Rosenmund reduction of acyl chlorides to aldehydes, the palladium catalyst (over barium sulfate or calcium carbonate) is poisoned by the addition of sulfur or quinoline. This system reduces triple bonds faster than double bonds allowing for an especially selective reduction. Lindlar's catalyst is another example — palladium poisoned with lead salts. As described by its inventor,[1][2] the catalyst is prepared by reduction of palladium chloride in a slurry of calcium carbonate followed by adding lead acetate. By this approach, one obtains a catalyst with a large surface area. Further deactivation of the catalyst with quinoline enhances its selectivity, preventing formation of alkanes. An example of alkyne reduction is the reduction of phenylacetylene to styrene.[1] en.wikipedia.org/wiki/Lindlar%27s...

Q: The future direction of employment how, in what kind of units to do what work, how the closure rate? The: Generally in the chemical plant to do engineering design engineers, the past few years, science and engineering graduates generally do not worry about work.

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: Will the catalyst be able to increase the rate of chemical reactions?: Not necessarily, but junior high school, such as manganese dioxide is a positive catalyst, that is, "to speed up the reaction rate", when the teacher should also mentioned "to reduce the rate of response" situation

Q: Especially how can i explain the experiment with a paper and 2 paperclips with the paper acting as the catalyst.: Catalysts lower the activation energy of a given chemical reaction, thus speeding it up

Q: I need to name 3everyday catalysts for my chemistry homework. I don't want anything complicated there must just be 3 easy ones out there... Then could you please state what each one is used for? Please do it like this, e.g.Hello ; used to say hi to someone. I know that's a bad example but please!!: Hello ; Chemical catalysts are substances that increase the rate of reaction (while remaining themselves chemically unchanged: Polyethylene, the polymer used to make everything from: 1. garbage bags and 2. grocery bags, to 3. squeezable bottles, to 4. cable insulation, is made by passing ethylene gas over a catalyst. Most other polymers are made in the same (or similar) way. Synthetic rubber, nylon, polyester, PVC, teflon, etc. It's not hard to think of 10 uses for these catalyst-produced materials alone... e.g. : 5. rain coats 6. pantyhose 7. water pipes 8. bouncy balls 9. non-stick surfaces and pads 10. saran wrap 11. food containers 12. cell-phone and laptop cases 13. cheap wigs 14. fishing line... 15. Enzymes are Biological catalysts: 16. beer and 17. bread are typically made with yeast, a living organism containing enzymes I hope this helps!

Q: What are the catalysts?: The relationship between it and the reaction system is as highly selective (or specific) as the relationship with the key. A catalyst does not catalyze all chemical reactions, such as manganese dioxide in the decomposition of potassium chlorate Play a catalytic role to speed up the chemical reaction rate, but the other chemical reactions do not necessarily have a catalytic effect