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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High quality Very first,and Consumer Supreme is our guideline to offer the most beneficial service to our consumers.At present, we're attempting our greatest to be among the top exporters in our area to fulfill buyers far more need to have 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: Frankfurt, Kyrgyzstan, Iraq, We have exported our products all over the world, especially the USA and European countries. Furthermore, all of our products are manufactured with advanced equipment and strict QC procedures to ensure high quality.If you are interested in any of our products, please don't hesitate to contact us. We will try our best to meet your needs.
By Charlotte from Macedonia - 2017.01.28 19:59
A good manufacturers, we have cooperated twice, good quality and good service attitude.
By Cheryl from Atlanta - 2018.06.19 10:42
