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1330-43-4 molecular structure
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disodium bicyclo[3.3.1]tetraboroxane-3,7-bis(olate)

ChemBase ID: 134111
Molecular Formular: B4Na2O7
Molecular Mass: 201.21934
Monoisotopic Mass: 201.9811625
SMILES and InChIs

SMILES:
B1(OB2OB(OB(O1)O2)[O-])[O-].[Na+].[Na+]
Canonical SMILES:
[O-]B1OB2OB(OB(O1)O2)[O-].[Na+].[Na+]
InChI:
InChI=1S/B4O7.2Na/c5-1-7-3-9-2(6)10-4(8-1)11-3;;/q-2;2*+1
InChIKey:
UQGFMSUEHSUPRD-UHFFFAOYSA-N

Cite this record

CBID:134111 http://www.chembase.cn/molecule-134111.html

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NAMES AND DATABASE IDS

NAMES AND DATABASE IDS

Names Database IDs
IUPAC name
disodium bicyclo[3.3.1]tetraboroxane-3,7-bis(olate)
IUPAC Traditional name
disodium bicyclo[3.3.1]tetraboroxane-3,7-bis(olate)
Synonyms
Borax solution
Sodium tetraborate buffer solution
Buffer solution pH 9.0 (20 °C)
Buffer solution pH 10.0 (20 °C)
Buffer solution pH 8.0 (20 °C)
Borax, fused
Sodium tetraborate
Sodium tetraborate
Borax Anhydrous
Buffer solution pH 9.00 (20°C)
Buffer solution HPCE pH 9.0
Boric acid - Sodium tetraborate buffer solution
Buffer solution HPCE pH 8.5
Sodium tetraborate buffer
Buffer solution HPCE pH 8.0
硼酸钠 溶液
硼砂 溶液
四硼酸钠缓冲液 溶液
缓冲溶液 pH 9.0(20°C)
缓冲溶液 pH 10.0(20°C)
缓冲溶液 pH 8.0(20°C)
Borax,熔融
四硼酸钠
四硼酸钠
无水硼砂
用于 HPCE 的 pH 9.0 缓冲溶液
用于 HPCE 的 pH 8.5 缓冲溶液
硼酸-四硼酸钠缓冲液 溶液
四硼酸钠缓冲液
用于 HPCE 的 pH 8.0 缓冲溶液

CALCULATED PROPERTIES

CALCULATED PROPERTIES

JChem
Acid pKa -12.53269  H Acceptors
H Donor LogD (pH = 5.5) -0.8531835 
LogD (pH = 7.4) -0.87984425  Log P 1.41 
Molar Refractivity 44.9309 cm3 Polarizability 10.755107 Å3
Polar Surface Area 104.0 Å2 Rotatable Bonds
Lipinski's Rule of Five true 

PROPERTIES

PROPERTIES

Physical Property Safety Information Product Information Bioassay(PubChem)
Solubility
H2O: soluble0.1 M at 20 °C, clear, colorless expand Show data source
Apperance
granular (dry) expand Show data source
powder expand Show data source
Melting Point
741 °C(lit.) expand Show data source
Density
1.0 g/mL at 20 °C expand Show data source
1.000 g/mL at 20 °C expand Show data source
1.001 g/mL at 20 °C expand Show data source
1.002 g/mL at 20 °C expand Show data source
2.367 g/mL at 25 °C(lit.) expand Show data source
Absorption Wavelength
λ: 260 nm Amax: ≤0.020 expand Show data source
λ: 280 nm Amax: ≤0.015 expand Show data source
Conductivity
~0.2 mS/cm at 20 °C expand Show data source
~0.3 mS/cm at 20 °C expand Show data source
~0.5 mS/cm at 20 °C expand Show data source
~0.7 mS/cm at 20 °C expand Show data source
~2.5 mS/cm at 20 °C expand Show data source
Fluorescence
λex 200-600 nm; λem 300-800 nm (corresponds) expand Show data source
λex 200-600; λem 300-800 nm (corresponds) expand Show data source
pH
7.75 (90 °C) expand Show data source
7.77 (80 °C) expand Show data source
7.80 (70 °C) expand Show data source
7.82 (60 °C) expand Show data source
7.86 (50 °C) expand Show data source
7.90 (40 °C) expand Show data source
7.94 (30 °C) expand Show data source
8.0 (25 °C) expand Show data source
8.00 (20 °C) expand Show data source
8.09 (10 °C) expand Show data source
8.18 (0 °C) expand Show data source
8.5 (25 °C) expand Show data source
8.64 (90 °C) expand Show data source
8.67 (80 °C) expand Show data source
8.71 (70 °C) expand Show data source
8.75 (60 °C) expand Show data source
8.80 (50 °C) expand Show data source
8.86 (40 °C) expand Show data source
8.93 (30 °C) expand Show data source
9.0 (25 °C) expand Show data source
9.00 (20 °C) expand Show data source
9.0-10.5 (25 °C, 0.1 M in H2O) expand Show data source
9.11 (10 °C) expand Show data source
9.24 (0 °C) expand Show data source
RTECS
ED4588000 expand Show data source
European Hazard Symbols
Toxic Toxic (T) expand Show data source
UN Number
1760 expand Show data source
MSDS Link
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
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Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
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German water hazard class
1 expand Show data source
nwg expand Show data source
Hazard Class
8 expand Show data source
Packing Group
2 expand Show data source
Risk Statements
60-61 expand Show data source
Safety Statements
53-45 expand Show data source
GHS Pictograms
GHS08 expand Show data source
GHS Signal Word
Danger expand Show data source
GHS Hazard statements
H360FD expand Show data source
GHS Precautionary statements
P201-P308 + P313 expand Show data source
Personal Protective Equipment
Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges expand Show data source
Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter expand Show data source
Eyeshields, Gloves expand Show data source
Eyeshields, Gloves, half-mask respirator (US), multi-purpose combination respirator cartridge (US) expand Show data source
Eyeshields, Gloves, type P2 (EN 143) respirator cartridges expand Show data source
RID/ADR
UN 1760 8/PG 2 expand Show data source
Purity
≥97.0% (T) expand Show data source
≥98% expand Show data source
≥98.0% (T) expand Show data source
≥99% expand Show data source
≥99.0% expand Show data source
99% expand Show data source
99.998% trace metals basis expand Show data source
Concentration
100 mM sodium borate expand Show data source
20 mM sodium tetraborate expand Show data source
28 mM total boric acid expand Show data source
50 g/L expand Show data source
50 mM total boric acid expand Show data source
Grade
decomposing agent (for x-ray fluorescence analysis) expand Show data source
for HPCE expand Show data source
puriss. p.a. expand Show data source
purum p.a. expand Show data source
SAJ first grade expand Show data source
Compostion
borax, ~0.013 M expand Show data source
hydrochloric acid, ~0.0046 M expand Show data source
hydrochloric acid, ~0.021 M expand Show data source
sodium hydroxide, ~0.018 M expand Show data source
Suitability
in accordance for HPCE expand Show data source
Impurities
≤0.005% heavy metals (as Pb) expand Show data source
≤3% water expand Show data source
insoluble matter, passes filter test expand Show data source
Cation Traces
Ag: ≤5 mg/kg expand Show data source
Al: ≤5 mg/kg expand Show data source
As: ≤0.5 mg/kg expand Show data source
Ba: ≤10 mg/kg expand Show data source
Ba: ≤5 mg/kg expand Show data source
Bi: ≤5 mg/kg expand Show data source
Ca: ≤10 mg/kg expand Show data source
Ca: ≤200 mg/kg expand Show data source
Ca: ≤50 mg/kg expand Show data source
Cd: ≤2 mg/kg expand Show data source
Cd: ≤5 mg/kg expand Show data source
Cd: ≤50 mg/kg expand Show data source
Co: ≤2 mg/kg expand Show data source
Co: ≤5 mg/kg expand Show data source
Co: ≤50 mg/kg expand Show data source
Cr: ≤2 mg/kg expand Show data source
Cr: ≤5 mg/kg expand Show data source
Cu: ≤2 mg/kg expand Show data source
Cu: ≤5 mg/kg expand Show data source
Cu: ≤50 mg/kg expand Show data source
Fe: ≤10 mg/kg expand Show data source
Fe: ≤5 mg/kg expand Show data source
Fe: ≤50 mg/kg expand Show data source
K: ≤100 mg/kg expand Show data source
K: ≤50 mg/kg expand Show data source
Li: ≤5 mg/kg expand Show data source
Mg: ≤5 mg/kg expand Show data source
Mn: ≤5 mg/kg expand Show data source
Mo: ≤5 mg/kg expand Show data source
Ni: ≤2 mg/kg expand Show data source
Ni: ≤5 mg/kg expand Show data source
Ni: ≤50 mg/kg expand Show data source
Pb: ≤2 mg/kg expand Show data source
Pb: ≤5 mg/kg expand Show data source
Pb: ≤50 mg/kg expand Show data source
Sr: ≤5 mg/kg expand Show data source
Tl: ≤5 mg/kg expand Show data source
Zn: ≤5 mg/kg expand Show data source
Zn: ≤50 mg/kg expand Show data source
Antion Traces
chloride (Cl-): ≤10 mg/kg expand Show data source
chloride (Cl-): ≤1000 mg/kg expand Show data source
chloride (Cl-): ≤50 mg/kg expand Show data source
chloride (Cl-): ≤500 mg/kg expand Show data source
phosphate (PO43-): ≤20 mg/kg expand Show data source
silicate (as SiO2): ≤500 mg/kg expand Show data source
sulfate (SO42-): ≤50 mg/kg expand Show data source
sulfate (SO42-): ≤500 mg/kg expand Show data source
Clinical
for in vitro diagnostic use expand Show data source
Shelf Life
(Expiry date on the label.) expand Show data source
(limited shelf life, expiry date on the label) expand Show data source
Loss on Drying
≤1% loss on drying, 20 °C (HV) expand Show data source
≤1% loss on ignition, 800 °C expand Show data source
Quality Level
IVD expand Show data source
Quality
blue colored expand Show data source
traceable to SRM from NIST expand Show data source
λ
0.1 M in H2O expand Show data source
Product Line
BioUltra expand Show data source
abs.
UV absorption/200-800 nm in accordance expand Show data source
Linear Formula
Na2B4O7 expand Show data source

DETAILS

DETAILS

Sigma Aldrich Sigma Aldrich
Sigma Aldrich - HT1002 external link
Application
Kit component in the Silver Stain kit, Procedure No. HT100
Sigma Aldrich - 229946 external link
Packaging
5, 25, 100 g in glass bottle
Sigma Aldrich - 221732 external link
Frequently Asked Questions
Live Chat and Frequently Asked Questions are available for this Product.
Packaging
100, 500 g in poly bottle
Sigma Aldrich - 71996 external link
Other Notes
Reagent for the decomposition of oxides and silicates by fusion1,2
Sigma Aldrich - 33667 external link
General description
This standard solution is tested against certified reference materials from NIST and/or PTB.
Visit our Titration Center to learn more.
Packaging
The suffix -VP or -VOLPAC in the product number indicates packaging in 5 or 10 L VOLPAC containers.
Sigma Aldrich - 82633 external link
Preparation Note
prepared under clean room conditions and filtered through a 0.2 μm membrane filter
Sigma Aldrich - 33547 external link
General description
This material is tested against certified reference materials from NIST and/or PTB.
Visit our Titration Center to learn more.
Sigma Aldrich - 33648 external link
General description
This material is tested against certified reference materials from NIST and/or PTB.
Visit our Titration Center to learn more.
Packaging
The suffix -VP or -VOLPAC in the product number indicates packaging in 5 or 10 L VOLPAC containers.
Sigma Aldrich - 82594 external link
Preparation Note
prepared under clean room conditions and filtered through a 0.2 μm membrane filter
Sigma Aldrich - 82604 external link
Preparation Note
prepared under clean room conditions and filtered through a 0.2 μm membrane filter
Sigma Aldrich - 82634 external link
Preparation Note
prepared under clean room conditions and filtered through a 0.2 μm membrane filter
Sigma Aldrich - 82602 external link
Preparation Note
prepared under clean room conditions and filtered through a 0.2 μm membrane filter

REFERENCES

REFERENCES

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PATENTS

PATENTS

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INTERNET

INTERNET

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