Rubber Chemicals RUBBER VULCANIZING ACCELERATOR MBT (M)
- Ref Price:
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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 MBT(M)
Chemical Name:2-Mercaptobenzothiazole
Molecular Formula:C7H5NS2
Molecular Weight: 167.26
CAS NO. : 149-30-4
Executive standard：GB/T 11407-2003
Specification:
| Index | ||
High-class products | First-class products | Acceptable end-product | |
Appearance(Visual nspection) | Light yellow or greyish-white powder, granules | ||
Initial M.P, oC ≥ | 173.0 | 171.0 | 170.0 |
Loss on drying, % ≤ | 0.30 | 0.40 | 0.50 |
Ash, % ≤ | 0.30 | 0.30 | 0.30 |
Residues on 150μm sieve，% ≤ | 0.00 | 0.10 | 0.10 |
Properties:
It is Light yellow or off-white powder, granules with a little osmyl and taste bitter. The density is 1.42-1.52, Melting point above 171oC,Soluble in ethyl acetate, ethanol, solution of NaOH and baking soda,soluble ethanol ,dichloromethane,ethylether and choroform slightly soluble in benzene, insoluble water and gasoline. Good storage stability. lower explosion limit is 21g/m3.
Application:
Used as an acid accelerator currently and a medium fast primary accelerator. Imparts excellent aging properties when used both alone and in combination with DM, TMTD and many other basic accelerators for higher activity. Its accelerative temperature is low and easily be dispersed with lower pollution. Mainly used in the manufacture of tires, tubes, foot wear rubber belts and hoses etc.
Packaging:
25kg plastic woven bag, paper with plastic film bag, Kraft paper bag or jumbo bag
Storage:
Keep container tightly closed in a cool, well-ventilated place. The recommended max.
storage life is 2 years when stored under normal conditions.
The product could be ultra fine powder based on customer accurate quirement.
- Q:Thorough explanation pls.
- Catalyst are the substances which increase the rate of reaction. They do not get consumed in the reaction but they participate in intermediate reactions. The catalyst action can be explained as- Providing alternate energy path- Let us suppose that an endothermic reaction need 15 joules of threshold energy to occur. The catalyst will provide them path which needs less energy. Providing Surface- Many reaction may occur slowly because less contact between the molecules/atoms/ions or due to unavailability of proper structure, in this case the catalyst provide surface for carrying the reactions. There are several other actions which mayn't be necessary for you to understand the basic function of catalyst.
- Q:Will the chemical catalyst not reduce that?
- Why is it done? Although the catalyst does not react chemically, the catalyst itself is deteriorated and is not always used
- Q:Why can't catalysts make an unfavorable reaction favorable?Can anyone give me a relatively simple explanation for this?Thank you so much in advance!
- Catalysts, as enzymes, only change the activation energy (the energy the compound needs to gain to transform into products), they don't change the Gibbs energy values of reactants nor products. Therefore, if the delta G of the reaction is positive, it'll still need free energy to complete. They make a reaction complete faster than in normal conditions, but don't change the actual possibility for that reaction to happen. In the human body, a lot of reactions of catabolism have a positive G value and these reactions needs to get energy from other coupled reactions that have a negative value, so the total value is still negative. Many of them use hydrolysis of ATP to provide that energy, as its hydrolysis is about -30 kJ/mol in physiological conditions. I don't know what class you're in to ask this question, so can't really know if this answer is too simple or complicated for u... sorry in advance! Jo?l
- Q:How does active charcoal catalyze in some chemical reactions?
- Generally not, but it can be used as a catalyst carrier
- Q:how a catalyst can provide a new route in forming the product?
- catalyst speeds up the reaction... i don't know if there is actually 'a new route' in product formation because catalysts should not affect the reaction... it only has to speed up the reaction
- Q:and what type of macromolecule are they made of? thanks!
- Because they speed up chemical reactions by lower the amount of energy required to start the reaction (called activation energy). A catalyst is something that speeds up a reaction - which is what enymes do.
- Q:i keep messing up on those 2 simple things haha i would apprecaite some help.
- enzymes help biochemical reactions proceed at a faster rate than normal in a physiological system, catalysts or sometimes referred to as subunits, metals and other ligands, bind enzymes, and can have a positive and negative effect on the rate of a reaction. search them on wikipedia!
- Q:Will the catalyst be able to increase the rate of chemical reactions?
- The catalyst has a positive catalyst and a negative catalyst, and generally does not specifically refer to both the positive catalyst, i.e., the catalyst that accelerates the reaction.
- Q:What is the effect of the catalyst in chemistry?
- Changing the rate of reaction can speed up the reaction and slow down the rate of reaction
- Q:How does catalyst aid a chemical reaction?
- A catalyst will lower the activation energy of a reaction, and hence allow it to happen faster. The actual mechanisms vary widely. Two mechanisms are: 1/ formation of intermediate compounds, which can then decompose into the catalyst and the required product 2/ provision of a large surface area for adsorption, so the reactant molecules can come into contact sooner.
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Rubber Chemicals RUBBER VULCANIZING ACCELERATOR MBT (M)
- 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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