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Oxalic acid for industrial use (1)

 Last Update: 2021-11-24
 Source: Internet
 Author: User

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1 Scope

This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of oxalic acid for industrial use

This standard applies to the production, inspection and sale of industrial oxalic acid produced by the synthesis of producer gas and sodium hydroxide (hereinafter referred to as the synthesis method) or the nitric acid oxidation of glucose (hereinafter referred to as the oxidation method)

Molecular formula: H ₂ C ₂ O ₄ ·2H ₂ O

Relative molecular mass: 126.

2 Normative references

The clauses of the following documents have become clauses of this standard after being quoted in this standard

Preparation of GB/T601-2002 Chemical Reagent Standard Titration Solution

GB/T602-2002 Preparation of standard solutions for impurity determination of chemical reagents (ISO 63531:1982, NEQ)

Preparation of preparations and products used in GB/T603-2002 chemical reagent test method (ISO 6353-1:1982, NEQ)

The expression method and judgment method of GB/T1250 limit value

GB/T3049-2006 General method for determination of iron content in industrial chemical products 1, 10-phenanthroline spectrophotometric method (ISO 6685:1982, IDT)

GB/T6678-2003 General Rules for Sampling of Chemical Products

GB/T6679-2003 General Rules for Sampling of Solid Chemical Products

GB/T6682-2008 Analytical laboratory water specifications and test methods (ISO3696:1987, MOD)

GB/T7531 Determination of Ignition Residues of Organic Chemical Products (GB/T7531-2008.

GB/T7532 Determination of Heavy Metals in Organic Chemical Products Daily Colorimetric Method

GB/T8947 compound plastic woven bag

GB/T9723 General Rules of Flame Atomic Absorption Spectrometry for Chemical Reagents

3 Classification and naming

According to the oxalic acid production process, the products are divided into type I and type II.

4 Appearance

White crystals

5 requirements

Oxalic acid for industrial use should meet the technical requirements shown in Table 1

Table 1 Technical requirements

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