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:What is the reaction in chemistry?: Industrial production of ammonia, ethanol, industrial synthesis of ammonia, ethanol catalytic oxidation, acetaldehyde oxidation into acetic acid, ethyl acetate preparation, the transformation of automobile exhaust, benzene substitution reaction and addition reaction, some other addition reaction of hydrocarbons, Ethanol dehydration to produce ethylene and so on

Q:1. Catalysts can help to bring the reactants together in the correct orientation2. The chemical formula of a catalyst is written on the left hand side (reactant) side of an equation.3. Catalysts can provide a surface on which the reaction occurs.4. Catalysts increase the activation energy.5. Catalysts increase the magnitude of the equilibrium constant, thus favoring product formation.6. &quot;Enzymes&quot; are biochemical catalysts.7. Catalysts increase the rate of a reaction.8. Catalysts are slowly used up during the reaction and need to be replaced.: 1 (I don't know about 2), 3, 5, 6, 8 are true.

Q:I know that a species that does not appear in the chemical equation may also affect the rate of a reaction - e.g. a catalyst. But does that mean the catalyst can be present in the rate equation, and if so are catalysts always present in the rate equation?: All the factors that affect a reaction rate, except for concentration and reaction order, are taken into account in the rate equation of the reaction. A catalyst: The presence of a catalyst increases the reaction rate (in both the forward and reverse reactions) by providing an alternative pathway with a lower activation energy. en.wikipedia.org/wiki/Reaction_ra...

Q:about 1-3 sentences on this will do thank you: a catalyst is something that makes a reaction go faster than it normally would. An enzyme is a catalyst; it has all the parts for the reaction on it and help organic materials break down or transfer energy or whatever reaction it needs.

Q:I have just spent CAN$550 to replace a catalyst converter at one end of the muffler. The repairman said I need to replace the oxygen sensor very soon, otherwise, the C.C. will be gone again. Is that true... can someone confirm this for me. Thanks.: ok its not catalyst converter its catalytic converter. next i have not read one answer that is correct a couple are close but no cigar. ok the 02 sensor senses the oxygen content in the exhaust gasses. using the oxygen content it can determine if the engine is running to rich or to lean. the ecm (computer) wants to keep the engine at optimum fuel mileage or keep it stoichometric meaning fuel to air ratio of 14.7:1 the ecm can adjust fuel air ratios by changing the pulse width and the duty cycle or on off time of the injector.it also uses several other sensors to help it like intake air temp (iat) coolant temp (cts) mass air readings if equipped (MAF) or manifold absolute pressure (map) so its not just the oxygen sensor it can make adjustments as need. anyways the oxygen sensor uses a .1 to .9 volt range signal anything below .450 is lean anything above .450 is rich and .4 to .5 is perfect. but ur engine constantly changes and the 02 readings change constantly new cars can take readings as fast as one or two times a second older cars are alittle slower. anyways only replace the 02 sensor if the car is telling u its bad meaning u have a check engine light on and a code that says P 0 . . . bank one sensor one ckt malfunction or bank 2 sensor 1 ckt malfunction u get the idea unless that happens ur 02's are good leave them alone. when they do go bad ur car will run rich and puke alittle black smoke out the exhaust and ur car will smell like rotten eggs. NOW the cat its job is to heat up to 600 + degreees F and burn unburnt fuel from the combustion cycle of the engine when an engine does not burn all its fuel its running rich and bad fuel milage occurs. if the 02 sensor goes out it can heat the cat red hot as the extra fuel being burnt inside it can become extremely hot. most 02 sensor for most vehicles run around 60 bucks not expensive. a car can have 1 to 4 of these and YES if bad and left for too long and can ruin a cat converter.

Q:What is the analytical principle of chemical adsorbents? How about the number of active catalyst centers tested?: What do you mean by the chemical adsorber? BET is the use of the surface of the uneven force field, but the inert gas at low temperature in the surface adsorption. TPD, TPR is the number of active centers that can be measured by the technique of desorption and reduction between specific gases and catalysts as the temperature increases. If the active site is a reduced position, H2-TPR can be used. If the active site is acidic, NH3-TPD can be used, but also the method of alkali titration.

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:Always speeds the reation ratedoes not affect the reation rateundergoes a chemical changedoes not become part of the chemical changealways slows the reation rate: the BEST ans is does not become part of the chemical change!!!!! *Defination of catalyst:catalyst is a chemical substance that will CHANGES the rate of reaction.it does not undergoes any chemical changes catalyst affect the reation rate!!! catalyst can divide into positive and negative catalyst so it can changes(either SPEEDS or SLOWS) the reaction rate

Q:Write a chemical formula in a chemical laboratory without the use of a catalyst for oxygen: 2KMnO4 = K2MnO4 + MnO2 + O2 ↑ ~ conditions are heating

Q:The role of catalyst in chemical reactions: Negative catalysts can be used to control the reaction rate (such as some reaction too fast, instantly release a lot of energy caused by danger, you can join), common is the antioxidant

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