PD CEN/TS 17784-1:2022 PDF

Organo-mineral fertilizers. Identification of complexing agents. - Method using UV-Vis spectrophotometry and gravimetry

Название (английский):

PD CEN/TS 17784-1:2022

Organo-mineral fertilizers. Identification of complexing agents. - Method using UV-Vis spectrophotometry and gravimetry

Статус документа:: Действующий
Формат:: Электронный (PDF)
Дата публикации:: 31 июля 2022 г.
ICS:: 65.080
SKU:: PD CEN/TS 17784-1:2022

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Abstract

1 Scope This document specifies two methods required for the identification of lignosulfonate by UV-Vis spectrophotometry (method A) and gravimetry (method B) in organo-mineral fertilizers.

NOTE Lignosulfonate, as a complexing agent , is a natural polymer produced as a by-product of the sulfite method for manufacturing paper from wood pulp in the paper industry. As a natural polymer, it presents a poorly defined and variable chemical structure. It is an intricate mixture of small- to moderate-sized polymeric compounds with sulfonate groups attached to the molecule, and diverse complexing capacity.

PD CEN/TS 17784-1:2022 PDF

Abstract

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