Carbon Black Acetylene Black Powder

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Tianjin
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TT OR LC
Min Order Qty:
-
Supply Capability:
10000MT m.t./month

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Product Description:

Acetylene black powder

Product Description:

Conductive Carbon Black:
1. Usage : conductive rubber, plastic, radio conductive elements etc.;
2.Product Status: Black granular;
3.Standard: ISO 9001:2000

Suggest for Use:

This product has the low resistance or high resistance performance characteristics, can gift products conductive or anti-static function. Its characteristic is small particle size, specific surface area is large and rough, the structure is high, the surface clean (compounds less), etc.

TDS of the Acetylene black: (Standard:GB/T3782-06)

Items

Unit

index

Dubigeoncm3/g

cm3/g

41

ResistivityΩ·m

Ω·m

≤2.5

PH

7.5

purity%

%

≥99

Oil Absorptionml/100g

ml/100g

360

Iodine value/g

/g

320

Heating loss%≤

%

≤0.2

Ash    %≤

%

≤0.17

Semolina %≤

%

≤0.01

Hydrochloric acid to absorb ml/g≥

ml/g

4.5

Safety:

As a matter of good industrial hygiene, gloves and safety glasses with side shields or better eye protection should be worn when handing Carbon Black , For more information, refer to the MSDS.








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Q:What is the nature of the chemical catalyst?
Different reactions have different catalysts, mainly catalyzed, to speed up the reaction rate
Q:A catalyst elevates the rate of a reaction by?
reducing the energy required for the reactants to reach the transition state.
Q:Briefly define a homogenous catalyst? Help please!?
A homogenous catalyst is in the same phase as the rxn it is catalyzing. Most people think of catalysts as heterogenous: either sold (cat) liquid (rxn) (Raney Ni hydrogenation) or solid (cat) gas phase rxn) (catalytic convertors, NH3 production, SO2 oxidation, nitric acid production) polyethylene synthesis with Ziegler Natta catalysts. (Wikipedia). However starting probably with the Wilkinson hydrogenation catalyst Rh(PPh3)3Cl in 1966 a whole field of homogeneous catalysis has develope where the catayst is in soln. It proved to be a Renaissance for Inorg chem. These catalysts have several advantages over heterogenous catalysts: take place under mild conditions (green chem); the mechanisms are usually understood and can therefore be modified to be extremely specific for a substrate. There have been several Nobel Prizes in this area in the last decade because of their importance in organic synthesis: 2010, 2005, 2001. The one type of homolytic gas phase catalysis rxn I can think of are those that involve a radical chain mechanism: destruction of O3 by Cl• and chlorination (bromination) of alkanes.
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:What is the catalyst for industrial aluminum electrolysis?
2AlCl3 (melt) = power = 3cl2 + 2al by-product is chlorine
Q:What is a catalyst and what is it do?
A catalyst is a substance that increases the rate of a chemical reaction.
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.
Q:Chemical catalyst poisoning situation
In the reactants or catalyst mixed with a small amount of material, so that the catalyst catalytic capacity of a sharp decline or even loss, this phenomenon is called catalyst poisoning. For example, in the synthesis of ammonia feed gas containing CO, CO2 and H2S, PH3, water vapor and other impurities, can make iron catalyst poisoning; contact with the system of sulfuric acid, if arsenic and selenium oxide (As2O3, SeO2), can make vanadium catalyst Loss of activity. Therefore, it is necessary to purify the feed gas, prevent the poisoning of the catalyst, and also reduce the corrosion of the equipment. The phenomenon of catalyst poisoning is sometimes temporary, the removal of toxicants, the effectiveness of the catalyst can still be restored; sometimes it is permanent, without chemical treatment can not restore catalytic performance.
Q:What are the methods of catalyst characterization?
Catalyst characterization is through the physical or chemical detection test means, the structure and nature of the catalyst to give a state description, to help explain the characteristics and characteristics of the catalyst,
Q:reactants are constant or the quality and chemical properties of the catalyst are constant?
The morphology of the catalyst may change before and after the chemical reaction, but the quality and chemical properties of the chemical reaction do not change before and after the chemical reaction. It is noteworthy that this does not mean that the catalyst is not involved in chemical reactions. Some chemical catalysts are involved in chemical reactions, but in the form of intermediates, consume a certain amount of catalyst in a chemical reaction, but in the subsequent chemical reactions, the same quality of the catalyst will be produced. On the whole, the quality of the catalyst before and after the chemical reaction is not changed.

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