Does TX-10 denote one fixed chemical composition?

No. TX-10 is a commercial designation for a nonylphenol ethoxylate grade, commonly associated with a nominal ethoxylation level rather than one discrete molecule. CAS 9016-45-9 does not fix the ethoxylate distribution, active matter, water, cloud-point result or test method. The agreed product specification must identify the grade.

What should be checked before specifying TX-10 for a destination market?

Nonylphenol ethoxylate chemistry can be subject to application- and jurisdiction-specific restrictions. Confirm the intended use, destination requirements and environmental or customer restrictions before selecting the material. If an alcohol ethoxylate alternative is required, it should be evaluated in the actual formulation; it is not established as an equivalent merely by a similar EO level.

Nonylphenol Ethoxylate (TX-10 / NPE-10) CAS 9016-45-9

Nonylphenol Ethoxylate (TX-10 / NPE-10, CAS 9016-45-9, EC/List No. 500-024-6) is a nonionic surfactant grade with a nominal average of about 10 ethylene-oxide units. It is a commercial ethoxylate distribution rather than one discrete molecule. Typical functions include emulsification, wetting, detergency, dispersion and solubilization in industrial formulations. Confirm active matter, EO distribution, cloud-point method, water, pH, physical form, packaging and destination-market suitability against the current TDS, COA and SDS. Where an alcohol ethoxylate alternative is specified instead of alkylphenol ethoxylate chemistry, AEO-9 / MOA-9 should be evaluated separately by EO level, cloud point, active matter and application testing.

CAS: 9016-45-9
Synonyms: TX-10; NPE-10; Nonylphenol Ethoxylate; Nonylphenol Polyoxyethylene Ether
Einecs: 500-024-6
Molecular Formula: General formula C15H24O(C2H4O)n; nominal average n about 10; commercial ethoxylate distribution
Grade: Confirm active matter, EO distribution, water, pH and cloud-point test method
Package: Confirm current packaging, net weight, labeling and destination requirements

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Product Description

1 Product Overview

2 Product Information / Specifications

3 Storage, Safety and Documentation

Product Overview

Emulsifier TX-10 (CAS 9016-45-9, EC/List No. 500-024-6) is a nonylphenol ethoxylate with an average of about 10 ethylene-oxide units. It is a commercial ethoxylate distribution, not one discrete molecular compound. It is used as a nonionic surfactant for emulsification, wetting, dispersion and solubilization in industrial detergents, textile auxiliaries, metal cleaning, coatings and other formulations. For the offered material, confirm active matter, EO distribution, cloud-point method, water, pH, physical form and packaging on the current COA/TDS. For EU/EEA supply or use, assess the exact substance and intended use under the REACH authorisation framework and applicable restrictions; also confirm destination-market and customer requirements and follow the current SDS.

Product Information / Specifications

Product	Emulsifier TX-10 / Nonylphenol Ethoxylate CAS 9016-45-9
CAS No.	9016-45-9
EC / List No.	500-024-6
Molecular Formula / Identity	C₁₅H₂₄O(C₂H₄O)n (average n ≈ 10; commercial ethoxylate distribution)
Synonyms	TX-10; Nonylphenol ethoxylate; Nonylphenol polyoxyethylene ether; NPE-10
Grade / Supply Specification	Confirm active matter, EO distribution, water, pH and cloud-point test method
Packaging	Confirm current packaging, net weight, labeling and destination requirements

For a related alkylphenol ethoxylate surfactant, see Triton X-100-Type Octylphenol Ethoxylate.

Storage, Safety and Documentation

Store and handle the product in accordance with the current supplier TDS and SDS. Confirm the applicable COA, specification, packaging and destination-market requirements before purchase or use.

FAQ - Technical & Supply Chain

Q:
Does TX-10 denote one fixed chemical composition?

A: No. TX-10 is a commercial designation for a nonylphenol ethoxylate grade, commonly associated with a nominal ethoxylation level rather than one discrete molecule. CAS 9016-45-9 does not fix the ethoxylate distribution, active matter, water, cloud-point result or test method. The agreed product specification must identify the grade.
Q:
What should be checked before specifying TX-10 for a destination market?

A: Nonylphenol ethoxylate chemistry can be subject to application- and jurisdiction-specific restrictions. Confirm the intended use, destination requirements and environmental or customer restrictions before selecting the material. If an alcohol ethoxylate alternative is required, it should be evaluated in the actual formulation; it is not established as an equivalent merely by a similar EO level.

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