Rubber Chemcials Rubber Antioxidant MODEL MB
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MB
Chemical Name:2- Mercaptobenzimidazole
Molecular Formula:C 7 H 6 N 2 S
Molecular Weight:150.2
CAS No.:583-39-1
Specifications:
Item | Specifications | ||
High Grade | 1st Grade | Qualified | |
Appearance | Light-yellow or white Power crystals (Granules) | ||
Initial Melting Point°C Min. | 295.0 | 290.0 | 285.0 |
Heat Loss, % Max. | 0.30 | 0.40 | 0.50 |
Ash, % Max. | 0.30 | 0.40 | 0.50 |
Residue on 150 µm Sieve % Max. | 0.30 | 0.40 | 0.50 |
Properties: Light-yellow or white Power crystals, bitterness, relative density is 1.42 ± 0.02g/cm3 , soluble in alcohol, acetone and ethyl acetate, difficully soluble in gasoline petrol and dichloromethane, insoluble in carbon tetrachloride, benzene and water, non-toxic.
Applications: Antioxidant MB can effectively protect the pollution of copper and deal with the bad effect of over-vulcanization. It has an acation of delay to the accelerator M, DM, TMTD, etc. There are better actions when it is used with antioxident . Change less in color, it can be used in wire, cable and transparent or color rubber products and it also can be used as heat stabilizer of polyethylene and polypropylene.
Packing: Coextruded paper bags lined with polyethylene film bags. Net weight 25 kg per bag.
Storage: Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight.
- Q: On the issue of chemical balance and catalyst
- The catalyst can only improve the equilibrium speed, reducing the time to reach equilibrium, but will not affect the chemical balance.
- Q: What is the chemical nature of the enzyme?
- The difference between the enzyme and the general protein is that the enzyme is a protein with a special catalytic function. Similarly, the enzyme, like other proteins, consists mainly of amino acids, with one, two, three and quaternary structures, and the same enzyme as other proteins The composition of the enzyme can be divided into two types: simple protein and binding protein. Some enzymes are only protein, its activity depends on its protein structure, such enzymes are simple protein; other enzyme active ingredients in addition to containing protein, but also There are some small molecules that cofactor, the two together to be active, such enzymes belong to the binding protein.The protein part of the protein is called the enzyme protein, non-protein part called the cofactor
- 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. "Enzymes" 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.
- (c) rather catalyst varies the path of reaction or u can say mechanism of reaction in which activation potential gets shrink consequently of which fruitful collisions occurred at particularly shrink temperature so better opportunities for molecules to go activation complicated a catalyst is a substance that lowers the activation potential of a chemical reaction yet itself final unchanged during the time of the reaction
- 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: Chemical equation if there is a catalyst and heating, which write in the equal sign above, which written in the following? Tomorrow academic level test, solution
- This do not care The But in general the catalyst is written on the equal sign is better ...
- Q: Who knows hydrogen and nitrogen in the high temperature, high pressure and catalyst conditions for the synthesis of ammonia chemical equation ah? Urgent! The SOS
- 3H2 + N2 ===== 2NH3
- Q: Is palladium predominantly a catalyst in chemistry?
- Palladium in the chemical mainly to do the catalyst; palladium and ruthenium, iridium, silver, gold, copper and other alloy, can improve the palladium resistivity, hardness and strength, used in the manufacture of precision resistors, jewelry and so on.
- Q: Chemical master invited (about catalyst)
- From the thermodynamics can be reaction, and the three formulas can be added to eliminate the intermediate product, indicating that the reaction may occur. The definition of the catalyst is not complete. I am a junior undergraduate student of Jilin University School of Chemistry, according to the definition of the catalyst in the university textbook, the catalyst itself reacts with the reactants to produce unstable intermediates. After the reaction is finished, the intermediate product is explained and the catalyst is reduced. Apparently did not participate in the reaction. So the catalyst to change the course of the reaction, the original reactants to go through a relatively high energy to produce products, there will be a catalyst after a few relatively low energy barrier, so much easier, the reaction rate is greatly accelerated The It can be seen, the catalyst is not no response, but only after the completion of the reaction to restore it. It can also be seen that the amount of catalyst does not matter, and some reactions require the amount of catalyst to be approximately equal to the amount of reactants. Waiting for you to high school and university to further study on this issue will have a more clear understanding of the.
- Q: In the chemical reaction, the rate of decomposition reaction is related to the quality of the catalyst?
- The catalyst can affect the reaction rate, the faster the amount of reaction or slower. Of course there are limits,
- Q: Does all chemical reactions have a catalyst?
- Not some reaction without catalyst
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Rubber Chemcials Rubber Antioxidant MODEL MB
- 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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