nmp, n-methyl-2-pyrrolidone cas 872-50-4

Details:

solvent nmp, n methyl 2 pyrrolidone cas 872-50-4

• Physical-chemical Indexes:

Density: 1.028 g/mL at 25 ° C (lit.)

Melting point: - 24 ° C (lit.)

Boiling point: 202 ° C (lit.)

Flash: 187 ° F

The refractive index: n20 / D 1.479

Water solubility: > = 10 g / 100 mL at DHS 20 C

Storage conditions: completely packed, ventilated stored apart, away from the flame, high temperature, and antioxidant

Steam density: 3.4 (vs air)

• Application

(1) N-Methylpyrrolidone (NMP) used as solvent for lube oil refining has strong dissolving ability, perfect selevtivity, and good environmental protection function.

(2) NMP is widely applied to arometic hydrocarbons extracting, acetylene, and diolefine purification.

(3) electronic grade n methyl 2 pyrrolidone (EL NMP) solvent is used as wax removal, wafer degreasing and other contamination detergent in PC magnetic head production. 

• COA

• Company Info:

FAQ for CRUDE NMP
 
Q1. where do you collect it from
A1: Crude ones are collected from pharmaceutical usage, cercuit board cleaning, etc.
 
Q2: Any COA could be shared for reference first
A2: There is no exact COA for reference, as there will be some differences for each batch from the same usage.
 
Q3. How about the price for crude ones
A3. No normative price could be offered, different purity&moisture at different price
 
Q4. What kind of package will you serve for crude nmp
A4. Here only galvanized drum for crude nmp packaging.
 
Q5. How many quantity could offer for each batch
A5. Because the pollution in China, many factories stopped production, so the price for synthetic ones have increased too much this year. It is means, crude NMP are short supply for demestic users, normally, 20ton could be transported for each batch. 
 
Q6. How to confirm the quality for each batch
A6. You could get COA and picture of the batch you need first.
 
Q7. how about the sample  
A7. sample could be sent for your confirm first, normally you could get 200g~500g.