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经验公式(希尔记法):
B4Na2O7 · 10H2O
化学文摘社编号:
分子量:
381.37
UNSPSC Code:
12352302
EC Index Number:
215-540-4
MDL number:
Assay:
99.5-105.0%
Grade:
ACS reagent
Form:
crystals or granules
Solubility:
49.74 g/L
SMILES string
[Na+].[Na+].B([O-])(OB([O-])OB=O)OB=O.O.O.O.O.O.O.O.O.O.O
InChI
1S/B4O7.2Na.10H2O/c5-1-9-3(7)11-4(8)10-2-6;;;;;;;;;;;;/h;;;10*1H2/q-2;2*+1;;;;;;;;;;
InChI key
OJPFLODMGUZMKD-UHFFFAOYSA-N
grade
ACS reagent
agency
meets USP/NF
vapor pressure
0.213 hPa ( 20 °C)
assay
99.5-105.0%
form
crystals or granules
impurities
≤0.005% Insoluble matter
color
white
pH
9.2 (20 °C, 47 g/L in H2O)
mp
75 °C (Elimination of water of crystallisation)
solubility
49.74 g/L
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%
shipped in
ambient
storage temp.
room temp
Quality Level
Application
Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS
Analysis Note
Assay99.5-105.0%Calcium (Ca)0.005% maxChloride (Cl)0.001% maxColorWhiteFormCrystals/granulesHeavy metals (as Pb)0.001% maxInsoluble matter0.005% maxIron (Fe)5ppm maxPhosphate (PO4)0.001% maxSulfate (SO4)0.005% maxpH of a 0.01 m solution at 25°C9.15-9.20
signalword
Danger
hcodes
Hazard Classifications
Eye Irrit. 2 - Repr. 1B
存储类别
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
法规信息
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