2021 China New Design N,N-Dimethyl-p-toluidine - Factory Price Sell 92-70-6 2-Hydroxy-3-naphthoic acid CAS 92-70-6 Whatsapp/wechat:+86 18705999280 – Mit-ivy
2021 China New Design N,N-Dimethyl-p-toluidine - Factory Price Sell 92-70-6 2-Hydroxy-3-naphthoic acid CAS 92-70-6 Whatsapp/wechat:+86 18705999280 – Mit-ivy Detail:
Application
|
Items |
Excellent grade |
First grade |
|
Appearance |
Pale yellow powder |
Pale yellow powder |
|
Assay% ≥ |
99 |
98.5 |
|
Melting point of dry product ºC ≥ |
218 ºC |
217.5 ºC |
|
Insoluble in sodium bicarbonate% ≤ |
0.05 |
0.1 |
|
Moisture % ≤ |
0.1 |
0.15 |
|
2.6 acid% ≤ |
0.09 |
0.1 |
|
2.3.6 acid% ≤ |
0.08 |
0.1 |
|
2-naphthol% ≤ |
0.4 |
0.5 |
Quick Details
Occupational contraindications Patients with chronic respiratory disease should not perform this operation. [1]
Safety and labour protection pennants
(1) Engineering control containment system and ventilation.
(2) Fire prevention and explosion prevention measures: contact with flammable liquids is prohibited. Fire fighting and fire extinguishing methods: use water spray, carbon dioxide, dry powder, appropriate foam fire extinguishing agent.
(3) Caution for storage and transportation: Store in a cool, ventilated room. Store separately from oxidizer.
(4) Personal protective measures: Ventilation, local exhaust. Skin protection: Wear protective gloves and protective clothing. Eye protection: Wear safety goggles. Ingestion protection: Do not eat, drink or smoke while working. The industrial production method is produced by the condensation of N,N-dimethylaniline and formaldehyde, distillation, crystallization and purification, sulfur, ammonization of urea and ammonium chloride at 150-160℃, filtration and drying of the finished product. Raw material consumption (kg, t) N,N-dimethylaniline (98%) 110 formaldehyde (37%) 460 urea 700 sulphur (99%) 350 ammonium chloride 630 p-aminobenzenesulfonic acid (100%)
Product detail pictures:
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Our enhancement depends around the sophisticated devices ,exceptional talents and repeatedly strengthened technology forces for 2021 China New Design N,N-Dimethyl-p-toluidine - Factory Price Sell 92-70-6 2-Hydroxy-3-naphthoic acid CAS 92-70-6 Whatsapp/wechat:+86 18705999280 – Mit-ivy , The product will supply to all over the world, such as: Netherlands, California, Serbia, They're durable modeling and promoting effectively all over the world. Under no circumstances disappearing major functions in a quick time, it's a should for you of excellent good quality. Guided by the principle of "Prudence, Efficiency, Union and Innovation. the company make a terrific efforts to expand its international trade, raise its company profit and raise its export scale. We're confident that we are going to possess a vibrant prospect and to be distributed all over the world within the years to come.
By Ophelia from Thailand - 2017.08.16 13:39
The company can keep up with the changes in this industry market, product updates fast and the price is cheap, this is our second cooperation, it's good.
By Jack from Munich - 2018.12.14 15:26
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