Description
Sodium tetraborate decahydrate
ACS reagent, ≥99.5%
Synonym: Borax decahydrate, Sodium borate decahydrate
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CAS Number 1303-96-4
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Linear Formula Na2B4O7 · 10H2O
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Molecular Weight 381.37
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EC Number 215-540-4
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MDL number MFCD00149193
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PubChem Substance ID 329824630
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NACRES NA.21
Properties
Related Categories | Chemical Synthesis, Essential Chemicals, Inorganic Salts, Research Essentials, Salts, More... |
Quality Level | 200 |
grade | ACS reagent |
vapor pressure | 0.213 hPa ( 20 °C) |
assay | ≥99.5% |
form | powder or crystals |
impurities | ≤0.005% Insoluble matter |
pH | 9.15-9.20 (25 °C, 0.01 M in solution) |
density | 1.73 g/mL at 25 °C (lit.) |
anion traces | chloride (Cl-): ≤0.001% |
- | phosphate (PO43-): ≤0.001% |
- | sulfate (SO42-): ≤0.005% |
cation traces | Ca: ≤0.005% |
- | Fe: ≤5 ppm |
- | heavy metals (as Pb): ≤0.001% |
SMILES string | O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]B1Ob2ob([O-])ob(O1)o2 |
InChI | 1S/B4O7.2Na.10H2O/c5-1-7-3-9-2(6)10-4(8-1)11-3;;;;;;;;;;;;/h;;;10*1H2/q-2;2*+1;;;;;;;;;; |
InChI key | CDMADVZSLOHIFP-UHFFFAOYSA-N |
Packaging
2.5 kg in poly drum
25, 500 g in poly bottle
4×2.5 kg in poly bottle
Safety Information
Symbol
GHS07,GHS08
Signal word
Danger
Hazard statements
H319 - H360FD
Precautionary statements
P201 - P202 - P264 - P280 - P305 + P351 + P338 - P308 + P313
RIDADR
NONH for all modes of transport
WGK Germany
WGK 1
RTECS
VZ2275000
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable