ISO 2131:1972 PDF

Name: ISO 2131:1972 — Surface active agents — Simplified classification
SKU: ISO 2131:1972
Price: 25 EUR
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Surface active agents — Simplified classification

Название (английский):

ISO 2131:1972

Surface active agents — Simplified classification

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 7
Дата публикации:: 1 ноября 1972 г.
Издание:: ISO IS 2131 edition 1 version 1
ICS:: 71.100.40

Тип поставки:

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Язык документа:

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Срок поставки:2 раб. дн. (перевод)

Цена:105 €

Описание (английский):

The simplified system enables the characteristics of the substances to be expressed by an abbreviated lettering and numbering system, consisting of one letter and four figures (five in the case of compounds comprising several hydrphilic groups). The letter designates the ionic character and figures correspond to the functional groups present in the molecule.

Abstract

Overview

Key Topics

Ionic Character Designation
- A for anionic
- C for cationic
- N for non-ionic
- Z for ampholytic (compounds containing both anionic and cationic groups)
Numbering System for Functional Groups The digits following the letter represent:
1. Hydrophilic group
2. Hydrophobic group
3. Intermediate functional group
4. Supplementary property of the hydrophilic group
5. (Optional) Second hydrophilic group for compounds containing multiple hydrophilic groups
Rules for Classification
- The hydrophilic group is the primary basis and is identified first.
- The hydrophobic group is usually the longest hydrocarbon chain or cyclic residue in the molecule, typically with at least 8 carbon atoms.
- The intermediate functional group is adjacent to the hydrophilic group and serves specific roles in the molecule.
- Supplementary properties cover additional functional traits influencing surfactant behavior.
Special Cases
- Ampholytic compounds use the letter Z and designate cationic groups first and anionic second.
- Compounds with both ionic and non-ionic hydrophilic groups use the letter of the ionic group first.

Applications

Chemical Industry This classification aids chemical manufacturers in identifying and categorizing surfactants, simplifying specification, labeling, and formulation of detergents, emulsifiers, and other surface-active products.
Research and Development Researchers use the abbreviated classification for consistent documentation of surfactant types, enabling streamlined communication and study of their properties and behavior in various applications.
Quality Control Simplified classifications facilitate easier verification and quality assurance of surfactants across production batches, ensuring conformity with expected chemical structures.
Regulatory and Trade The standard supports regulatory compliance and international trade by harmonizing surfactant classification, avoiding ambiguity in material descriptions.

Related Standards

ISO 22715 – Packaging and Labeling of Surfactants and Detergents
ISO/R 896 – General Scientific Classification Principles (referenced for radical arrangement)
ISO 9000 Series – Quality management, applicable in surfactant manufacturing
ASTM Standards – Various ASTM norms relate to surfactant testing and characterization

Keywords: ISO 2131, surface active agents classification, surfactants, anionic surfactants, cationic surfactants, non-ionic surfactants, ampholytic surfactants, chemical classification system, detergent industry standards, hydrophilic groups, hydrophobic groups, surfactant nomenclature, ISO standards for surfactants.

Технические детали

Технический комитет: ISO/TC 91 - Surface active agents
SKU: ISO 2131:1972

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