RUBBER VULCANIZING ACCELERATOR ZDBC (BZ)
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 12000 m.t./month
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RUBBER VULCANIZING ACCELERATOR ZDBC (BZ)
Chemical Name: Zinc dibutyl dithiocarbamate
Molecular Formula: C18H36N2S4Zn
Molecular Weight: 474.1
CAS NO. : 136-23-2
Executive standard：Q/ZYCH6-2003
Specification:
| Index |
Acceptable end-product | |
Appearance | white powder |
Initial M.P, oC ≥ | 180.0 |
Loss on drying, % ≤ | 0.50 |
Ash, % ≤ | 10-12 |
Residues on 150μm sieve，% ≤ | 0.50 |
Properties: White powder. The density is 1.24. Soluble in carbon sulfide. benzene, chloroform, insoluble in water. Good storage stability.
Application: Used for primary or secondary ultra-accelerator in NR. IR, BR, SBR, NBR, HR. EPDM, and their latexes. Similar in property to PZ and EZ. less accelerating effects than PZ and EZ to dry rubber. Effectively used in both natural and synthetic latexes for faster curing at normal (low) temperature than with PZ and EZ, and less scorching and blooming
Packaging: 25kg plastic woven bag, paper with plastic film bag, Kraft paper bag, or jumbo bag.
Storage: The product should be stored in the dry and cooling place with good ventilation, avoiding exposure of the packaged product to direct sunlight. The validity is 2year.
Note: The product could be ultra fine powder based on customer accurate requirement.
- 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
- Q:What is the microcosmic principle of the catalytic reaction in the chemical reaction?
- It is actually directly involved in the reaction, but, after the reaction, it has become a product out, the equivalent of no response
- Q:Why is the catalyst in the chemical balance, the rate of change and balance?
- Plus the catalyst, but only to change the activation energy of the reaction, so that more molecules at the same time to participate in the reaction.
- Q:Does the catalyst affect the chemical reaction rate constant? How does the chemical reaction rate constant change when a positive catalyst is added to a reaction?
- The catalyst will change the rate constant
- Q:Several experiments were carried out using catalysts
- Hydrogen peroxide in the manganese dioxide as a catalyst for decomposition reaction: 2H2O2 == MnO2 == 2H2O + O2 ↑ (laboratory oxygen principle)
- Q:How does active charcoal catalyze in some chemical reactions?
- It is a carrier, because its particles are small (micron level, nano-level), has a relatively large surface area, can be loaded on the catalyst to provide more reaction sites. Although called activated carbon, but its catalytic aspects of the relevant business reports.
- Q:how a catalyst can provide a new route in forming the product?
- A catalyst may provide a new route in forming a product. Often the reactants have too much energy and bounce off of each other forming few products. The catalyst may provide a surface where the reactants can settle momentarily in close proximity completing the reaction at an increased rate. The catalyst has been pictured (for illustration only) as a surface filled with grooves and when the reactants settle within the grooves (forming a film?) they are close enough to react rather than bounce off of each other. As such the catalyst facilitates the reaction without being used up in the reaction. The catalyst may become 'poisoned' with other molecules that interfere with the desired reaction and the reactants may have to be relatively pure to protect the catalyst.
- Q:Chemical reactions in the presence of impurities will cause catalyst poisoning, how to understand this sentence
- Catalyst poisoning reaction of raw materials contained in the trace impurities to the catalyst activity, selectivity significantly decreased or lost phenomenon. The nature of the poisoning phenomenon is a trace of impurities and the catalytic activity of the center of a chemical effect, the formation of non-active species. In the gas-solid heterogeneous catalytic reaction is formed in the adsorption complex. One is that if the toxic and active components of the role of weak, can be a simple way to restore the activity, known as reversible poisoning or temporary poisoning. The other is irreversible poisoning, it is impossible to restore the activity in a simple way. In order to reduce the side reaction activity, it is sometimes necessary to allow the catalyst to be selected for poisoning.
- Q:What is the catalyst for ethylene addition water? How to play a catalytic role.
- Phosphoric acid or sulfuric acid, 280 to 300 ° C, 7 to 8 MPa
- 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.
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RUBBER VULCANIZING ACCELERATOR ZDBC (BZ)
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 12000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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