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API STD 668: Brazed Aluminum Plate-fin Heat Exchangers for General Refinery Services

$

386

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MSS SP-134-2025: Valves for Cryogenic Service, including Requirements for Body/Bonnet Extensions

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315

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MSS SP-150-2025: Valves for Use in Hydrogen Peroxide Service

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189

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API STD 673: Centrifugal Fans for Petroleum, Chemical and Gas Industry Services: Edition 3

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API STD 674: Positive Displacement Pumps-Reciprocating: 3rd Edition

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363

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API MPMS CH 22.3: Testing Protocol for Flare Gas Metering: Edition 2

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ISO 2992:1974

ISO 2992:1974 Ammonium sulphate for industrial use – Determination of iron content – 2,2′- Bipyridyl photometric method

CDN $76.00

SKU: cd8537674b8d Category:

Description

Applicable to Fe contents of equal to or more than 0.0001 % (m/m). The reaction bases on the reduction of iron(III) by hydroxylammonium chloride. Formation of the complex between iron(II) and 2,2′-dipyridyl in a buffered medium (pH value between 4.5 and 6). Photometric measurement of the coloured complex at a wavelength of about 522 nm. Has also been approved by the IUPAC.

Edition

1

Published Date

1974-04-01

Status

PUBLISHED

Pages

3

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

Applicable to Fe contents of equal to or more than 0.0001 % (m/m). The reaction bases on the reduction of iron(III) by hydroxylammonium chloride. Formation of the complex between iron(II) and 2,2'-dipyridyl in a buffered medium (pH value between 4.5 and 6). Photometric measurement of the coloured complex at a wavelength of about 522 nm. Has also been approved by the IUPAC.

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