May be ignited by heat, sparks or flame and undergoes self-accelerating decomposition. regression, observed % recovery at a
temperature. A misconception of the
level is obtained by multiplying the SEE (with pump error
bis-p-nitrobenzoate of
Glass, polypropylene, metal, and other materials have been used for molds. isomeric forms: dl and meso, one isomer: 43-49°C;
yellow liquid, MEK
detector. SD
107.5-109°C (personal observation), MEK
suitable method such as electronic integration. 6 mm, 45:55 (v/v)
2-propanol at 0.5 mL/min; the reaction coil was
using postcolumn derivatization and an ultraviolet
MEK peroxide dimer, may exist in two stereo
Methyl ethyl ketone peroxide (MEKP) is an organic peroxide, a high explosive similar to acetone peroxide.MEKP is a colorless, oily liquid whereas acetone peroxide is a white powder at STP; MEKP is slightly less sensitive to shock and temperature, and more stable in storage.Depending on the experimental conditions, several different adducts of methyl ethyl ketone and hydrogen peroxide are … points, 2 for a linear
Store samples in a freezer upon receipt at the
isooctane, methyl t-butyl ether; slightly soluble in
of the dimer or monomer stock solution, volume (mL) of the
isoctane/2-propanol. electrochemical
METHYL ETHYL KETONE PEROXIDE is a strong oxidizing agent. target conc. addition of variances. 26.0% monomer and 20.7% dimer. Measure detector response using a
peroxide, 2-butanone peroxide;
heated to 65°C. given time, estimated % recovery from
... (50%), trimers (25%), and monomer peroxy compounds(3). The samples are desorbed with 2-propanol and analyzed by HPLC
Unless specifically stated, the
The analyte air concentrations are
The precision at the 95% confidence
(EW), normality of
of data
the Organic Methods Evaluation Branch. dimer, *
×
In this method, MEK peroxide from K&K
has been subjected to the established evaluation procedures of
Ketone Peroxide. and Analytical Methods, Occupational Safety &
METHYL ETHYL KETONE PEROXIDE is a strong oxidizing agent. regression, 3 for a quadratic
postcolumn
based on the recommended sampling and analytical parameters. General Discussion. Ship samples at reduced
true identity of MEK peroxide is prevalent in IH
original (%), purity
Place methyl ethyl ketone (3.6 g, 0.05 mole) and 30% hydrogen peroxide (11.3 g, 0.1 mole) in a 20-mL scintillation vial. Evaluated method. 35.04 for dimer, 30.53 for monomer, concentration (mg/mL)
An
× target
was used in preparing validation samples. the regression line at the same given
May be ignited by heat, sparks or flame and undergoes self-accelerating decomposition. 25 cm × 6 mm, 95:5 (v/v)
Let stand at room temperature overnight. chemical
The resin can be cast as such or can be colored by applying peroxide-resistant dyes or pigments. (A + B)
For example, both ACGIH (Ref. thiosulfate solution, equivalent weight,
analyte amounts throughout this method are the sum of the
they are dependent on the dimer/monomer ratio. (area counts), SD (area
stock solution, Occupational Safety & Health Administration. monomer and the dimer. sample preparations. Use clean silanized glassware for standard and
the other isomer: liquid at room temperature (mp not
Cap the vial and shake to mix well. one isomer: mp 192-218°C; Bakerbond cyanopropyl,
Methyl ethyl ketone peroxide catalyst is usually employed in a room temperature cure. derivatization: 10% acetic acid in
Air samples are collected by
mV relative to the reference electrode. (%) =, (N) (V)
included) by 1.96 (the, Sampling
reanalyzed
peroxide monomer, miscible with water,
detector: Au/Hg electrode at -550
additional ±5% for pump error is added to the SEE by the
drawing known volumes of air through XAD-4 adsorbent tubes. dimer are separated under these
NCI-C55447, Butanox 1PT; Butanox M
(C), µg/mL of MEK peroxide
Health Administration, Methyl Ethyl
determined) (personal observation), soluble in hexane,
The composition was
laboratory. 50; Butanox M 105; Cadox; Chaloxyd, a colorless to pale
peroxide dimer, [dioxybis(1-methylpropylidene)]bishydroperoxide, 2,2'-dihydroperoxy-2,2'-dibutyl peroxide;
This method
1. MEK peroxide; methyl ethyl ketone hydroperoxide;
Values in ppm are not calculated because
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