Sodium perborate monohydrate

CAS Number
10332-33-9
EC Number
600-419-4

What is Sodium perborate monohydrate?

Sodium perborate monohydrate (CAS 10332-33-9) is a stable, water-soluble oxidizing salt used industrially as a bleaching and antimicrobial agent.

Where is Sodium perborate monohydrate used?

  • Textile and laundry processing: bleaches natural and synthetic fibers without the fiber damage associated with chlorine-based alternatives
  • Personal care: tooth-whitening formulations, denture cleansers, and oxidative hair color products
  • Pulp and paper: bleaching agent to achieve target brightness levels while managing effluent impact
  • Water treatment and industrial disinfection: biocide effective against bacteria, fungi, and algae in recirculating systems
  • It releases active oxygen upon dissolution, enabling controlled bleaching and disinfection.

Good to know: Its lower water content compared to the tetrahydrate form makes it preferred where concentrated active oxygen delivery is required.

Commercial specifications

  • Technical grade for industrial bleaching and cleaning; higher-purity grades meeting specifications relevant to personal care
  • Packaging: multi-wall bags to bulk quantities

Other Names (Synonyms)

Caswell No. 784A|Sodium borate, monohydrate|Y9UKD0XE6F|EPA Pesticide Chemical Code 011105|SODIUM PERBORATE MONOHYDRATE (MART.)|Amosan Wound Cleanser|RefChem:56246|Perboric acid (HBO(O2)), sodium salt, monohydrate

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What are the physical properties of Sodium perborate monohydrate?

Melting Point 7-9 °C
Boiling Point 202-204 °C
Flash Point 110 °C
Appearance White crystalline powder
Color White
Odor Odorless
Form Crystalline Powder
Water Solubility very soluble H2O, reacting to give H2O2and sodium borate [HAW93]
Refractive Index 1.417

How is Sodium perborate monohydrate classified and handled safely? Learn More

Danger
GHS03· Oxidizing GHS05· Corrosive GHS06· Toxic GHS07· Irritant GHS08· Health Hazard

Hazard Statements

H272 May intensify fire; oxidizer
H302 Harmful if swallowed
H318 Causes serious eye damage
H331 Toxic if inhaled

Precautionary Statements

P203 Obtain, consult and follow expert instructions for use.
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P220 Keep away from clothing and other combustible materials.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

Which trade and regulatory codes apply to Sodium perborate monohydrate?

HS Code 28403000
UN Number 3377
ADR Class 5.1
Packing Group III
Storage Class 5.1B - Oxidizing hazardous materials
WGK (Germany) 1
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