Hebei ShengYang Biological Technology Co. Ltd(expird)
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CAS NO.9003-05-8
| tems | Specification |
| Melting point | >300 °C |
| Density | 1.189 g/mL at 25 °C |
| Refractive index | n20/D 1.452 |
| Flash point | >230 °F |
| Storage conditions | Refrigerator |
| Form | Granules |
| Colour | White to faintly yellow |
| Water solubility | Soluble |
| stability | Stable. Incompatible with strong oxidizing agents, aluminium, copper, iron, iron salts |
| EPA chemical substance information | Polyacrylamide (9003-05-8) |
| Production method 1 | Acrylonitrile is hydrated under the action of copper catalyst to obtain acrylamide, and then polymerized to polyacrylamide under the action of K2S2O8. The copper-aluminum alloy is washed with alkali treatment and made into Cuihua agent, which is put into the hydration reactor, the acrylonitrile raw material is pumped to the storage tank and then put into the measuring tank, the pure water after ion exchange treatment is sent to the measuring tank, and then press The proportioning pump is continuously injected into the hydration reactor through the raw material preheater, and the hydration reaction is controlled at 85-125°C to produce the acrylamide aqueous solution. The remaining acrylonitrile is recycled through the flash tower to the condenser and flows into the water metering tank for recycling, and the acrylamide solution is recycled from The flash tank flows into the storage tank, is pumped to the high tank to remove the resin exchange column, enters the storage tank to prepare a 7-8% concentration monomer, and is sent to the polymerizer to make colloidal polyacrylamide and package it as a finished product. |
| Production method 2 | Colloidal polyacrylamide: add 1 200 kg of deionized water into the hydrolysis reactor, add under stirring of acrylonitrile, 0.3 kg of aluminum hydroxide, cupric hydroxide for complex catalysis, and have hydrolysis reaction at 85~125 °C. After completion of the reaction, distill off the unreacted monomer acrylonitrile. Prepare a 7% to 8% acryloyl aqueous solution, add polymerization vessel and have polymerization reaction upon the triggering of ammonium persulfate. High molecular weight-polyacrylamide; hydrolyze acrylonitrile at 110~140 °C, 0.3 MPa into acrylamide. Add PAGE into the polymerization vessel containing deionized water, and have reaction for 8 to 24 h in the triggering of 50 mg/kg of ammonium persulfate. Then, it is hydrolyzed into the final product under alkaline conditions and at 70~80 °C. |
| Production method 3 | Add measured acrylonitrile into the reaction vessel; further add a catalytic amount of copper-based catalyst. Stir and warm up to 85~120 °C. The reaction pressure was controlled at 0.29~0.39 MPa. In continuous operation, the feed content was controlled at 6.5% with empty velocity of about 5h-1. The obtained acrylamide was then transferred polymerization vessel; add a certain amount of deionized water. Have the polymerization reaction in the triggering of potassium persulfate; add an appropriate amount of sodium bisulfite at 10 mins after the start of the reaction. Gradually heat to 64 °C, cool the reaction mixture, and have reaction at about 55 °C for 6h. Remove the unreacted monomer at vacuum (80 °C) under reduced pressu |
Q1: Can i get some samples
A: Yes, we can supply the free sample, but the shipping cost be paid by our customers.
Q2: How to start orders or make payments
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T, , Paypal or Escrow.
Q3: How to confirm the Product Quality before placing orders
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q4:What's your MOQ
A:Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q5: How about delivery lead time
A:Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)
Q6:Is it OK to print my logo on package
A:Sure.Please inform and offer your Logo formally before production.