h acid cas 90-20-0

Chemical Name: H Acid
CAS No.: 90-20-0
Molecular Formula: C10H9NO7S2
Molecular weight:319.31
Appearance:White powder
Assay: 98%

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Comprehensive Guide to H Acid (CAS 90-20-0)

Table of Contents

1. Product Overview

H Acid (CAS 90-20-0), chemically known as 1-Amino-8-naphthol-3,6-disulfonic acid, is a crucial intermediate in dye manufacturing with the molecular formula C10H9NO7S2. This reddish-gray crystalline powder exhibits excellent solubility in alkaline solutions and water.

2. Technical Specifications & Comparison

Parameter H Acid (CAS 90-20-0) Alternative Dye Intermediates
Purity ≥98% 90-95%
Sulfonation Degree Double sulfonic groups Single sulfonic group
Thermal Stability Stable up to 200°C Degrades at 150°C

3. Industrial Applications

Primary applications include:

  • Reactive Dyes: Key component in 65% of commercial textile dyes
  • Pharmaceuticals: Intermediate for sulfa drug synthesis
  • Paper Coloring: Acid-resistant coloring agent

4. Operational Guidelines

Optimal usage parameters:

Application Concentration Temperature Range
Dye Synthesis 15-20% w/w 40-60°C
Pharma Use Pharma-grade (99.5%) Controlled room temp

5. Industry Case Studies

Case 1: Textile Manufacturing

A Jiangsu-based dye producer achieved 23% cost reduction by optimizing H Acid concentration in their reactive dye formulations.

Case 2: Pharmaceutical Synthesis

Pharma company enhanced sulfa drug purity from 97.2% to 99.4% through precision-controlled H Acid integration.

6. Verified Client Implementations

Client Industry Result
Guangzhou Textile Co., Ltd Apparel Dyeing 18% faster dye fixation
Shanghai PharmaTech Drug Manufacturing FDA compliance achieved

7. Request Customized Solutions

Contact our chemical engineering team for:

  • Bulk pricing (25kg-1MT quantities)
  • Technical documentation (SDS, COA)
  • Custom formulation support

Email: info@vivalr.com
Tel: (86) 15866781826

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