Sodium tetraborate decahydrate (Borax decahydrate)
(37358764 | 1303-96-4)

CAS: 1303-96-4
Molecular Formula: Na2B4O7·10H2O
Molecular Weight: 381.37
Availablility: In Stock
Downloads: Product Specification | Safety Data Sheet [EN]
Sodium tetraborate decahydrate (Borax decahydrate) Chemical Structure

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Safety Data Sheet
Certificate of Analysis

Product Detail
Product Code 37358764
Product Name Sodium tetraborate decahydrate (Borax decahydrate)
Categories Buffers Inorganic Chemicals Water Analysis
CAS 1303-96-4
Molecular Formula Na2B4O7·10H2O
Molecular Weight 381.37
Storage Details Ambient
Harmonised Tariff Code 28401990

Product Specification
SO4 <200ppm
Fe <10ppm
Na2O 15.8-16.9%
B2O3 36.5-38.1%
Cl <100ppm
Appearance White crystalline powder
Sieve residue 0.315mm <2%
Equivalent Na2B4O7.10H2O (%) 99.9 – 104.4
For research use only, not for human use For research use only, not for human use

Safety Information
Exclamation Mark
Danger to Health
Signal word danger
Hazard statements
  • H319: Causes serious eye irritation

  • H360FD: May damage fertility. May damage the unborn child
Precautionary statements
  • P263: Avoid contact during pregnancy/while nursing

  • P280: Wear protective gloves/protective clothing/eye protection/face protection

  • P305+351+338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do, continue rinsing

  • P308+313: IF exposed or concerned: Get medical advice/attention