| CAS No.: | 616-38-6 |
|---|---|
| Formula: | C3h6o3 |
| EINECS: | 210-478-4 |
| Type: | Dyestuff Intermediates |
| Appearance: | Liquid |
| Quality: | Industrial |
| Customization: |
|---|
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Audited Supplier Instead of phosgene as carbonylation agent
Phosgene has high reactivity, but its highly toxic and highly corrosive byproducts make it face great environmental pressure, so it will be gradually eliminated. DMC has a similar nucleophile reaction center. When the carbonyl group of DMC is attacked by nucleophile, the acyl-oxygen bond is broken to form the carbonyl compound, and the by-product is methanol. Therefore, DMC can replace phosgene as a safe reaction reagent to synthesize carbonic acid derivatives, such as carbamate pesticides, polycarbonate, isocyanate, etc. Among them, polycarbonate will be the field with the greatest demand for DMC. It is predicted that more than 80% of DMC will be used for the production of polycarbonate in 2005.
Instead of dimethyl sulfate as methylating agent
Due to similar reasons as phosgene, dimethyl sulfate also faces elimination pressure, and when the methyl carbon of DMC is attacked by nucleophile, its alkyl-oxygen bond breaks and methylated products are also generated. Moreover, the reaction yield and process with DMC is higher and simpler than that with dimethyl sulfate. The main applications include synthetic organic intermediates, pharmaceutical products, pesticide products and so on.
Low toxicity solvent
DMC has excellent solubility, its melting and boiling point range is narrow, the surface tension is large, the viscosity is low, the dielectric constant is small, at the same time has a high evaporation temperature and fast evaporation speed, so it can be used as a low toxic solvent in the coating industry and medicine industry. It can be seen that DMC not only has low toxicity, but also has the characteristics of high flash point, low steam pressure and high lower explosive limit in the air, so it is a green solvent integrating cleanliness and safety.
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FAQ
Q1:How about the price? Can you make it cheaper?
We always take the customer's benefit as the top priority. Price is negotiable under different conditions, we are assuring you to get the most competitive price.
Q2: Which kind of payment terms do you accept?
A: Both T/T and LC are acceptable.
Q3: May I get one sample before placing order?
A: Yes, we'd like to provide sample for you. For those normal products, you just need to bear the freight; for those
high value products, you need to bear freight and a little product cost. If we cooperate for some times or if you
are our VIP customer, free sample will be offered when you need.
Q4: How and when can I get my goods after payment?
A: For chemical products, shipment is better. It will cost days to weeks to come to your destination port, which
depends on where the destination port is.
Q5: Is there any possible to use my appointed label or package?
A: Sure. If needed, we'd like to use label or package according to your requirement.
Q6: How can you guarantee the goods you offer is qualified?
A: We always believe honesty and responsibility are basis of one company, so whatever products we provide for
you are all high qualified. If the goods can't achieve the quality we promise, you can ask for refund.
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