borax (decahydrate) 99.5% ar

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Description

Buffer substance.
Sodium tetraborate decahydrate; Borax decahydrate; Sodium borate decahydrate ;Di-Sodium Tetraborate(decahydrate)

CAS 1303-96-4
Molecular Formula Na2B4O7.10H2O
Molecular Weight 381.37
Shelf Life 60 Months
Physical Properties
Physical State at 20 °C Solid Colour White crystalline
Odour Odorless pH Value 9.2
Melting Point/ Freezing Point [°C] 62 °C Boiling Point [°C] 320°C
Density [g/cm3] 1.73 Solubility in Water [% weight] 39 g/l at 20 °C – completely soluble
Specifications
Appearance A white crystalline powder Assay (Acidimetric) 99.5 – 103%
Identity Passes test Clarity of Solution Passes test
Insoluble Matter Max 0.005% pH (0.01 M Solution; 25°C) 9.15 – 9.20
pH (4% Solution in Water) 9.0 – 9.6 Chloride (Cl) Max 0.0007%
Phosphate (Po4) Max 0.001% Sulphate (So4) Max 0.005%
Heavy Metal (As Pb) Max 0.001% Arsenic (As) Max 0.0005%
Calcium (Ca) Max 0.005% Copper (Cu) Max 0.0005%
Iron (Fe) Max 0.0005% Ammonium (Nh4) Max 0.001%
Lead (Pb) Max 0.0005%
Dangerous Goods Information
UN Number – DG Class –
Safety Information & Hazard Symbols
Symbol GHS08
Signal Word Danger
Hazard Statement H360FD
Precaution Statement P201-P308 + P313

borax (decahydrate) 99.5% ar

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SKU C00448-05000-HS Category
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