BORAX AR (DECAHYDRATE) (DI-SODIUM TETRA BORATE)

BORAX AR (DECAHYDRATE) (DI-SODIUM TETRA BORATE) BORAX AR (DECAHYDRATE) (DI-SODIUM TETRA BORATE)
Article No. Grade Purity Cas no. Molecular Formula Molecular Weight H.S. Code Shelf Life
B0045600500 AR 99.5% 1303-96-4 Na2B4O7.10H2O 381.37 2840.1100
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

Insoluble matter:

 Max 0.005%

Chloride (Cl):

 Max 0.0007%

Sulphate (SO4):

 Max 0.005%

Heavy metal (as Pb):

 Max 0.001%

Arsenic (As):

 Max 0.0005%

Lead (Pb):

 Max 0.0005%

Iron (Fe):

 Max 0.0005%

Copper (Cu):

 Max 0.0005%

Identity:

 Passes test

Calcium (Ca):

 Max 0.005%

Assay (acidimetric):

 99.5 - 103%

Ammonium (NH4):

 Max 0.001%

Phosphate (PO4):

 Max 0.001%

pH (0.01 M solution; 25°C):

 9.15 - 9.20

pH (4% solution in water):

 9.0 - 9.6

Clarity of solution:

 Passes test

Safety Information and Hazard Symbols

Symbol: GHS08
Signal Word: Danger
Hazardous Statement: H360FD
Precaution Statement: P201-P308 + P313
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Globally Harmonized System of classification and Labelling of Chemicals (GHS)

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