ASTM D1022-76

Method of Test for Peroxide Content of Light Hydrocarbons (Withdrawn 1983)

General Information

• Status: Withdrawn
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.D0.02 - Ethylene

Standards Content (Sample)

DISCONTINUED
AMERICAN NATIONAL
ANSl/ASTM D 1022 - 76
STANDARD
AMERICAN SOCIETY FOR TESTIN~·· ND MATERIALS
Reproduced By GLOBAL ENGINEERING OOCUMl'iNTS : . I
IHS Under Uceme With ASTM
Copyriaht American Society For Testing And M•terial1
1916 lfoce Slrfft Philodtlphit, Pennsvl-it 19103 .
Standard Test Method for
PEROXIDE CONTENT OF LIGHT
1 2
HYDROCARBONS •
This Standard is issued under the fixed designation D 1022: the number immediately following the designation indicates
the year or original adoption or. in the case or revision, the year or last revision. A number in parentheses indicates the
year or last reapproval.
1. Scope 3.4 Methanol (absolute).
3.5 Potassium Thiocyanate Solution (100
2
I. I This method covers the determination
g//irer)-Dissolve 100 g of potassium thio­
of the peroxide content of polymerization and
cyanate (KCNS) in water and dilute to I liter.
recycle grades of butadiene.
3.6 Sulfuric Acid (1 +/)-Mix equal vol-
NoTE 1 - Recent data have been given to the
umes of concentrated sulfuric acid (H 2SO,, sp
sponsoring committee that this method can give
low results. Therefore, the committee acknowl­ gr 1.84) and water.
edges that this method may show only 5 to 10
3.7 Titanous Chloride, Standard Solution
percent of the amount present. Work is planned to
(0.02 N)-Prepare from titanous chloride
revise this methog.
(TiCl ) and store in a dark bottle under ox­
3
2. Summary of Method
ygen-free nitrogen (Note 3). Standardize daily
2.1 A quantity of sample is mixed with a against standard 0.02 N FeCls solution.
chilled solution containing ferrous ions. The
NOTE 3-Standard 0.02 N TiCl solution may
3
be prepared from a stock solution of 20 percent
butadiene is allowed to evaporate, and per­
TiCI, available from laboratory supply houses. Di­
oxide is determined as ferric thiocyanate by
lute B.5 ml of stock solution to I liter with dis­
titration with standard titanous chloride solu­
tilled water. Store under an oxygen-free nitrogen
blanket. Standardize as above.
tion. The results are calculated as hydrogen
peroxide.
4. Procedure
3. Reagents
4.1 To each of two 250-ml Erlenmeyer
flasks, add 100 ml of methanol, IO ml of fer­
3.1 Purity of Reagents-Reagent grade
rous ammonium sulfate solution, and 2 ml of
chemicals shall be used in all tests. Unless
glacial acetic acid. Pass C02 through the so­
otherwise indicated, it is intended that all re­
lutions; then after 5 min, chill the solutions to
agents shall conform to the specifications of
ice temperature with the gas still passing
the Committee on Analytical Reagents of the
through. Stopper one of the chilled flasks,
American Chemical Society, where such spec­
3
reserve it as a blank, and allow it to stand at
ifications ·are available. Other grades may be
room temperature.
used, provided it is first ascertained that the
reagent is of sufficiently high purity to permit
1
This method is under the jurisdiction of ASTM Com­
its use without lessening the accuracy of the
miuee D-2 on Petroleum Products and Lubricants.
Current edition approved Aug. 27, 1976. Published
determination.
September 1976. Originally publish
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