GB/T 12684.10-1990
Abolished
T/SDSCCE 038-2022
Active
Group standards
T/SDSCCE 038-2022 D-Methyl Dihydroxyphenyl Glycine by-product Formic Acid (Oxalic Acid)
T/SDSCCE 038-2022
Price:
$ 20.00
Basic Information
Standard Code:
T/SDSCCE 038-2022
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Chemical industry
ICS Name:
Acid
Publish Date:
2022-11-30
Implement Date:
2022-12-07
Scope
Main technical content: This document specifies the requirements, test methods, inspection rules, marking and documentation, packaging, transportation, and storage for the by-product oxalic acid (oxalic acid) from D-hydroxyphenylglycine methyl ester. This document applies to the oxalic acid solution produced during the acetaldehyde process of D-hydroxyphenylglycine methyl ester, which is obtained by cooling, crystallization, centrifugation, and other processing methods. It is mainly used in mine cleaning agents, precipitating agents, and color-sensitive dyes, etc.
Development Information
Related Standards
GB/T 12684.11-1990
Abolished
GB/T 12684.11-1990 Boric acid for industrial use—Determination of cobalt content
GB/T 12684.1-1990
Replaced
GB/T 12684.1-1990 Boric acid for industrial use—Determination of boric acid content
GB/T 12684.2-1990
Replaced
GB/T 12684.2-1990 Boric acid for industrial use—Determination of insoluble substance content in water
GB/T 12684.3-1990
Replaced
GB/T 12684.3-1990 Boric acid for industrial use—Determination of sulphate content by reduction and titrimetry
GB/T 12684.4-1990
Replaced