Preparation

Methylamine hydrochloride is prepared by heating a mixture of aqueous formaldehyde and ammonium chloride; the residual water and the formic acid produced in the reaction are removed via vacuum distillation. This leaves behind solid methylamine hydrochloride. The solid is then purified by organic extractions and additional vacuum distillations. Methylamine gas for the reaction with P2P is generated in situ by heating the hydrochloride salt with sodium hydroxide. Alternatively, methylamine can be liberated from the hydrochloride with base and collected in a cold finger or flask immersed in a dry ice bath.

 Q1. Can I have a sample order for your products?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable. We provide free samples, but the freight will be borne by you, and the cost will be returned to you or deducted from your order later.
Q2. What about the lead time?
A:Sample needs 3-5 days, mass production time needs 1-2 weeks for order quantity more than
Q3. Do you have any MOQ limit for order?
A: Low MOQ, 10-100g for sample checking is available
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.
Q5. How about the packing?
A: Usually we provide the packing as 25 kg / bag or carton. Of course, if you have special requirements on them, we will according to you.
Q6: how do you control quality?
A: We will make samples before mass production and start mass production after sample approval. 100% inspection during production and random inspection before packaging.
Q7: how to contact us?
A: send us the product information you are interested in. You will get a reply within 24 hours.
Q8: which payment method do you accept?
A: For small orders, you can pay by wire transfer, Western Union, Moneygram transfer, Bank Tansfer, Bitcoin or Alibaba.
Q9: can you give me a discount?
A: Of course, it depends on your quantity
Q10: how to confirm product quality before placing an order?
A: you can get free samples for some products. You only need to pay for transportation or arrange express delivery to take samples for us. You can send us your product specifications and requirements. We will make products according to your requirements.
Q11: how do you deal with quality complaints?
A: first of all, our quality control will reduce the quality problem to nearly zero. If the actual quality problem is caused by
us, we will send you free goods for replacement or refund.
Q12: Are you trading company or manufacturer?
A: We are chemical factory in China. So we can provide wholesale price.

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