SH/T 1499.8-1997 (SHT 1499.8-1997)

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SH/T 1499.8-1997
SH
PETROCHEMICAL INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 71.080.40
G 15
Pure adipic acid – Determination of content of
oxidizable compounds – Titrimetric method
ISSUED ON. JULY 12, 1997
IMPLEMENTED ON. DECEMBER 01, 1997
Issued by. China Petrochemical Corporation
Table of contents
Foreword ... 3 
1 Scope ... 4 
2 Normative reference ... 4 
3 Method summary ... 4 
4 Reagents and solutions ... 4 
5 Instruments and equipment ... 5 
6 Sampling ... 5 
7 Analytical procedures ... 5 
8 Expression of analytical results ... 5 
9 Precision... 6 
10 Report ... 6 
Foreword
This standard equivalently adopts the clause 4.11 Determination of the
oxidizable compounds mass fraction by oxalic acid in TOCT 10558-80* (with
the No.2 modification notification passed in September 1989, AND the No.3
modification notification passed in March 1992) “Adipic acid – Technical
conditions”.
This version provides the test method when revising SH/T 1499-92.
This standard is drafted in accordance with the requirements of GB/T 1.1-1993
in terms of drafting principles.
This standard was proposed by Liaoyang Petrochemical Company.
This standard shall be under the jurisdiction of the National Chemical
Standardization Technical Committee Petrochemical Technical Subcommittee.
This standard is responsibly drafted by Shanghai Petrochemical Research
Institute.
The main drafters of this standard. Li Zhengwen, Ma Yaping.
This standard was first published on July 12, 1997.
Pure adipic acid – Determination of content of
oxidizable compounds – Titrimetric method
1 Scope
This standard specifies the potassium permanganate oxidation-reduction
titration method for the determination of the content of the oxidizable
compounds (by oxalic acid) in the pure adipic acid.
This standard is applicable to the determination of the content of the oxidizable
compounds (by oxalic acid) in the pure adipic acid
2 Normative reference
The provisions in following documents become the provisions of this Standard
through reference in this Standard. The versions indicated at the time of
publication of this standard are valid. All standards are subjected to revision,
AND parties who reach an agreement based on this Standard are encouraged
to study if the latest versions of these documents are applicable.
GB/T 601-88 Chemical reagent – Preparations of standard volumetric
solutions
GB/T 6678-86 General principles for sampling chemical products
GB/T 6679-86 General rules for sampling of solid chemical products
GB/T 6682-92 Water for laboratory use; Specifications
3 Method summary
The solid sample is dissolved in a strong acid medium AND then titrated by the
potassium permanganate standard titration solution at a temperature of 80 °C
~ 85 °C.
4 Reagents and solutions
Unless otherwise noted, the reagents used are analytical pure, AND the water
used shall comply with the level III water specifications of GB/T 6682.
4.1 Sulfuric acid solution (1.4).
4.2 Potassium permanganate standard titration solution [c(1/5KMnO4 =
0.1mol/L)]. PREPARE it in accordance with the requirements of GB/T 601.