Good Quality Sodium Picosulfate Powder with Best Price CAS 10040-45-6
Product description
Usage And Synthesis
Preparation of 3,3'-Dichloro-4,4'-Dioxy-Diphenyl-(2-Pyridyl)-Methane: 75 g (0.7 mol) of 2-pyridinaldehyde are dropped during about 1 hour to a homogeneous mixture [obtained between 0° and 10°C from 107 ml of concentrated sulfuric acid and 292.9 g (2.28 mols) of 2-chlorophenol], maintaining the temperature between 0° and 5°C. The mixture is stirred for ? hour at this temperature, which is then allowed to rise spontaneously, taking care not to exceed 30°C. After stirring for 1? hours, the mixture is maintained overnight at room temperature, then it is dissolved, with external cooling, with a 10% sodium hydroxide solution, filtered with charcoal and neutralized with 5% hydrochloric acid. The precipitate obtained, consisting of crude product, filtered, washed with water, dried, triturated with ether and dried again, weighs 211 g.
Our Service
1.Cooperate with research institutions, we strictly control the process from raw material to finished product.
2.We can provide the reasonable price, high quality products and prompt shipment.
3.We can send the goods to your delivery address directly. It is relatively safe and fast.
4.Quick and clear response to customers questions, we’ll treat every email and message within 24 hours usually much faster.
5.We can provide you a discount if you place a substantial order with us.
6.Products can be packaged and company logo can be customized according to customer requirements.
Delivery
1. Sent out in 24hours once payment comfirm.
2. Professional agent make sure our ship fastly and safety
3.Offer your tracking number to you once we get it ,in order to facilitateyou track the express.
FAQ
Q1: Can i get some samples?
A: Yes, we can supply the sample, but the shipping cost be paid by ourcustomers.
Q2: How to start orders or make payments?
A: Proforma invoice will be sent first after confirmation of order, enclosedour bank information. Payment by T/T, Western Union or Paypal.
Q3: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products,you only need to pay theshipping cost or arrange a courier to us and take the samples. You cansend us your product specifications and requests,we will manufacture theproducts according to your requests.
Q4:What's your MOQ?
A:Our MOQ is 1kg. But usually we accept less quantity such as 100g onthe condition that sample charge is 100% paid.
Q5: How about delivery lead time?
A:Delivery lead time: About 3-5 days after payment confirmed. (Chineseholiday not included)
Q6: Do You Ship Over The Weekend?
We use EMS,TNT,FEDEX,DHL four kinds of couriers. EMS don't collected parcelsover the weekend. The packages can be shipped out normally before 12:00a.m in Beijing time if you choose to ship by TNT or FedEx.
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