Monograph pubs.acs.org/doi/book/10.1021/acsreagents
Hydrogen Peroxide Solution, Ultratrace (ca. 30% Solution in H2O) Part 4, Monographs for Reagent Chemicals: General Descriptions, Specifications, and Tests eISBN: 9780841230460 Tom Tyner Chair, ACS Committee on Analytical Reagents James Francis Secretary, ACS Committee on Analytical Reagents
ABSTRACT This monograph for Hydrogen Peroxide Solution, Ultratrace provides, in addition to common physical constants, a general description including typical appearance, applications, change in state (approximate), and density. The monograph also details the following specifications and corresponding tests for verifying that a substance meets ACS Reagent Grade specifications including: Assay, Chloride, Nitrate, Phosphate, Sulfate, Mercury, and Trace Metals.
H2O2
Formula Wt 34.01
CAS No. 7722-84-1
Suitable for use in ultratrace elemental analysis. Note: Package in a precleaned polyethylene bottle and use in a clean laboratory environment to maintain purity.
GENERAL DESCRIPTION Typical appearance . . . . . . . . Applications . . . . . . . . . . . . . Change in state (approximate) . Density . . . . . . . . . . . . . . . .
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clear liquid trace metal analysis boiling point, 150 °C 1.11
SPECIFICATIONS Assay . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25–35% H2O2 Maximum Allowable Chloride (Cl) . . . . . . . . . . . . . . . . . . . . . . . 3 ppm Nitrate (NO3) . . . . . . . . . . . . . . . . . . . . . . . 2 ppm Phosphate (PO4) . . . . . . . . . . . . . . . . . . . . . 2 ppm Sulfate (SO4) . . . . . . . . . . . . . . . . . . . . . . . 5 ppm Mercury (Hg) . . . . . . . . . . . . . . . . . . . . . . . 1 ppb Aluminum (Al) . . . . . . . . . . . . . . . . . . . . . . 1 ppb
© 2017 American Chemical Society
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DOI:10.1021/acsreagents.4168 ACS Reagent Chemicals, Part 4
ACS Reagent Chemicals
Monograph
pubs.acs.org/doi/book/10.1021/acsreagents
Barium (Ba) . . . . Boron (B) . . . . . Cadmium (Cd) . . Calcium (Ca) . . . Chromium (Cr) . . Cobalt (Co) . . . . Copper (Cu) . . . . Iron (Fe) . . . . . . Lead (Pb) . . . . . Lithium (Li) . . . . Magnesium (Mg) . Manganese (Mn) . Molybdenum (Mo) Potassium (K) . . . Silicon (Si) . . . . . Sodium (Na) . . . . Strontium (Sr) . . Tin (Sn). . . . . . . Titanium (Ti) . . . Vanadium (V) . . . Zinc (Zn) . . . . . . Zirconium (Zr) . .
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1 5 1 1 1 1 1 5 1 1 1 1 1 1 5 5 1 1 1 1 1 1
ppb ppb ppb ppb ppb ppb ppb ppb ppb ppb ppb ppb ppb ppb ppb ppb ppb ppb ppb ppb ppb ppb
TESTS Assay (By titration of the reductive capacity). Weigh accurately about 1 mL of sample in a tared 100 mL volumetric flask containing about 20 mL of water. Dilute with water to the mark, and mix thoroughly. To 20.0 mL of this solution, add 20 mL of dilute sulfuric acid (1:15), and titrate with 0.1 N potassium permanganate volumetric solution. One milliliter of 0.1 N potassium permanganate corresponds to 0.0017 g of H2O2.
Chloride, Nitrate, Phosphate, and Sulfate See test for hydrogen peroxide, [Part 4: Hydrogen Peroxide Solution].
Mercury (By CVAAS, [Part 2: Trace and Ultratrace Elemental Analysis; Mercury Determination by CVAAS]). To each of three 100 mL volumetric flasks containing about 35 mL of water, add 10.0 g of sample. To the second and third flasks, add mercury ion (Hg) standards of 10 ng (1.0 ppb) and 20 ng (2.0 ppb), respectively. Dilute to the mark with water. Mix. Zero the instrument with the blank, and determine the mercury content using a suitable mercury analyzer system (10 mL of 0.1 µg/mL Hg = 10 ng).
© 2017 American Chemical Society
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DOI:10.1021/acsreagents.4168 ACS Reagent Chemicals, Part 4
ACS Reagent Chemicals
Monograph
pubs.acs.org/doi/book/10.1021/acsreagents
Trace Metals Determine the aluminum, barium, boron, cadmium, calcium, chromium, cobalt, copper, iron, lead, lithium, magnesium, manganese, molybdenum, potassium, silicon, sodium, strontium, tin, titanium, vanadium, zinc, and zirconium by the ICP–OES Preconcentration method described in [Part 2: Trace and Ultratrace Elemental Analysis; Inductively Coupled Plasma−Optical Emission Spectroscopy (ICP–OES); Preconcentration of Ultratrace-Grade Reagents for Analysis by ICP–OES].
© 2017 American Chemical Society
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DOI:10.1021/acsreagents.4168 ACS Reagent Chemicals, Part 4
