Top Quality Dichlorobenzaldehyde - Factory Price Sell 92-70-6 2-Hydroxy-3-naphthoic acid CAS 92-70-6 Whatsapp/wechat:+86 18705999280 – Mit-ivy
Top Quality Dichlorobenzaldehyde - 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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By Albert from Hanover - 2017.04.18 16:45
This is a honest and trustworthy company, technology and equipment are very advanced and the prodduct is very adequate, there is no worry in the suppliment.
By Carey from Korea - 2017.05.21 12:31
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