Hazardous Chemical Classification: Properties Take Precedence Over Lists

2026-05-15

When determining whether a chemical is "hazardous," it is essential to understand two parallel and complementary systems:

List-Based Management (China’s Catalogue of Hazardous Chemicals):
China’s Catalogue of Hazardous Chemicals (2015 Edition) is a key basis for administrative licensing and safety supervision. Chemicals included in this catalogue are subject to special regulations in their production, operation, storage, and transportation.

Property-Based Classification (GHS and UN Standards):
International standards such as the UN Globally Harmonized System of Classification and Labelling of Chemicals (GHS) and the UN Recommendations on the Transport of Dangerous Goods classify substances based on their inherent hazards (e.g., flammability, corrosivity, toxicity). A substance with specified hazardous properties is recognized as dangerous under international rules, regardless of its inclusion in a national list, and is assigned a corresponding UN number for safe transport.

Key Principle: Not being listed in the Catalogue of Hazardous Chemicals does not equate to being "safe" or "non-hazardous." Chemicals with a clear GHS hazard classification or UN number must be managed as hazardous chemicals in practice, especially during storage and transportation.

About Zibo Anhao Chemical Co., Ltd.

Zibo Anhao Chemical Co., Ltd. Oxalic Acid
Zibo Anhao Chemical Co., Ltd., a reliable chemical manufacturer and supplier based in Zibo, Shandong—China’s dynamic chemical industrial base—specializes in providing premium-grade oxalic acid (CAS 144-62-7 for anhydrous, CAS 6153-56-6 for dihydrate) with consistent quality and stable supply. Our oxalic acid, also known as ethanedioic acid, is the simplest dicarboxylic acid, appearing as colorless transparent crystals or white powder, available in both anhydrous and dihydrate forms.

Produced under stringent quality management systems, our oxalic acid features high purity (≥99.6%), low moisture, and minimal impurities, ensuring excellent solubility in water and ethanol, and strong chemical stability for diverse industrial uses. As a versatile reducing agent, bleaching agent, and chelating agent, it serves as a key raw material in textile dyeing and printing (as a mordant), leather tanning, metal surface treatment (rust removal and descaling), rare earth element extraction, and organic synthesis of oxalate derivatives. It is also widely applied in industrial cleaning, pulp bleaching, and pharmaceutical & agrochemical intermediate production.

We maintain robust production capacity and strict quality control throughout the manufacturing process—from raw material selection and synthesis to crystallization, drying, and packaging—to meet international standards and customer requirements. Flexible packaging options include 25kg plastic woven bags, 50kg drums, and customized packaging, ensuring safe storage and cost-effective transportation for global clients. Committed to integrity and innovation, Zibo Anhao Chemical delivers high-quality oxalic acid, professional technical support, and dependable after-sales service, striving to be your trusted long-term partner in the chemical industry.

https://www.anhaochemical.com/global-premier-oxalic-acid-the-all-purpose-chemical-transforming-1-product/