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Production process and product standard of 1-naphthylamine-6-sulfonic acid

 Last Update: 2021-09-05
 Source: Internet
 Author: User

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vitamin magnesium interaction

magnesium nitric acid

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Carbonization kettle, nitrification kettle, neutralization kettle, reduction kettle, filter, washing kettle, storage tank, acid precipitation kettle, concentration kettle

First add refined naphthalene into the sulfonation reactor, heat to 120°C, control it within 45 minutes, gradually add 96.

In the acid precipitation pot, first add appropriate amount of water, then add 1-aminonaphthalene-6-sulfonic acid magnesium salt filter cake into the pot, heat up to 90～95℃, keep it for 2h, add 50%～60% sulfuric acid until Congo red The test paper was obviously blue

(1) The raw material naphthalene is toxic.

(2) Packed in plastic-lined woven bags or iron drums, and stored in a cool, dry and ventilated place

Related links: Product performance and production principle of 1-naphthylamine-6-sulfonic acid

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