Nonylphenol

CAS: 25154-52-3

Overview

Nonylphenol (CAS 25154-52-3 ), commonly abbreviated as NP, is an alkylphenol intermediate used across industrial manufacturing as a precursor to surfactants, antioxidants, and polymer stabilizers.

It serves as a foundational building block for ethoxylated derivatives and other downstream chemical products rather than as a finished formulation ingredient for consumer applications.

In textile and leather processing, NP is reacted with ethylene oxide to produce nonylphenol ethoxylates, which function as emulsifiers and wetting agents in dyeing and finishing baths.

Plastics and rubber manufacturers use NP-derived antioxidants to protect polymer compounds from thermal and oxidative degradation during processing and end-use applications.

In metalworking and lubricant formulations, NP-based additives contribute to emulsion stability in cutting fluids and corrosion-inhibiting packages for industrial machinery.

Printing and packaging operations rely on NP derivatives as dispersants and emulsifiers in ink and coating systems to ensure consistent application and durability.

Nonylphenol is supplied as a liquid at ambient conditions and is available in bulk quantities including ISO tank, drum, and IBC formats for global distribution.

Technical grade is the standard commercial specification, with purity typically at 99% or above. Buyers should confirm isomer composition as this affects downstream reactivity.

Physical Properties

Melting Point	2 °C
Boiling Point	293-297 °C
Density	0.950 g/cm³ @ Temp: 20 °C
Flash Point	(open cup) 300°F
Appearance	Pale-yellow, viscous liquid; slight phenolic odor.Insoluble in water; soluble in most organic solvents. Combustible.
Color	Clear, straw-colored, viscous liquid
Odor	Phenolic; like disinfectant.
Form	Clear, straw-colored liquid; technical grade is a mixture of isomers, predominantly para-substituted
Refractive Index	nD20 1.513

Safety & Handling

Danger GHS05 GHS07 GHS08 GHS09 Hazard Statements H302 Harmful if swallowed H313 May be harmful in contact with skin H314 Causes severe skin burns and eye damage H318 Causes serious eye damage H335 May cause respiratory irritation H360 May damage fertility or the unborn child H361 Suspected of damaging fertility or the unborn child H373 May causes damage to organs through prolonged or repeated exposure H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P316 Get emergency medical help immediately. P317 Get emergency medical help. P318 IF exposed or concerned, get medical advice. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P363 Wash contaminated clothing before reuse. P391 Collect spillage. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P317 Get emergency medical help. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P301+P330+P331 Rinse mouth. Do NOT induce vomiting. P302+P361+P354 IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code

29071310

Other Names

Industries

Textile, Leather & Paper Plastics & Polymers Lubricants & Metalworking Printing & Packaging