Sodium ortho-phenylphenate

CAS Number
132-27-4
EC Number
205-055-6

What is Sodium ortho-phenylphenate?

Sodium ortho-phenylphenate (CAS 132-27-4), also known as sodium o-phenylphenol, is the sodium salt form of ortho-phenylphenol; it offers enhanced water solubility compared to its parent phenol.

Where is Sodium ortho-phenylphenate used?

  • Textile and leather processing: controls microbial growth in wet-processing baths
  • Protects hides during storage and transit
  • Food processing facilities: active biocidal ingredient in food-contact surface sanitizers and hard-surface disinfectants
  • Personal care and cosmetics: preservative booster in rinse-off and leave-on products
  • Agriculture: post-harvest treatments and storage facility disinfection against fungal and bacterial contamination
  • It functions as a broad-spectrum antimicrobial and preservative active.

Good to know: Technical grade material is standard for industrial disinfection and textile applications; purer grades meeting pesticide registration requirements are available for food-contact and agricultural end uses.

Commercial specifications

  • Concentration and purity specifications vary by end-use market requirements

Other Names (Synonyms)

Sodium o-phenylphenol|Sodium 2-phenylphenolate|Sodium o-phenylphenate

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What are the physical properties of Sodium ortho-phenylphenate?

Melting Point 57 °C
Boiling Point 286°C
Density 1,213 g/cm 3
Appearance light brown or beige solid
Color Yellow
Form Liquid
Water Solubility 1220 g kg -1 (35 °C)
Vapor Pressure 1.2Pa at 20℃
Log P 3.18 at 22.5℃

How is Sodium ortho-phenylphenate classified and handled safely? Learn More

Warning
GHS05· Corrosive GHS07· Irritant GHS09· Environmental Hazard GHS02· Flammable GHS08· Health Hazard

Hazard Statements

H251 Self-heating; may catch fire
H302 Harmful if swallowed
H314 Causes severe skin burns and eye damage
H315 Causes skin irritation

Precautionary Statements

P203 Obtain, consult and follow expert instructions for use.
P235 Keep cool.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

Which trade and regulatory codes apply to Sodium ortho-phenylphenate?

HS Code 29071990
UN Number 3077
ADR Class 9
Packing Group III
WGK (Germany) 2
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