storage conditions

Store at +5°C to +30°C.

蒸汽密度

>1 (vs air)

质量水平

300,

蒸汽压

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

测定

≥99% NaOH basis (acidimetric)

形式

pellets

pH值（酸碱度）

>14 (20 °C, 100 g/L in H₂O)

mp

318 °C (lit.)

溶解性

1090 g/L

密度

2.13 g/cm³ at 20 °C

痕量阴离子

carbonate (as Na₂CO₃): ≤1%
chloride (Cl^-): ≤0.012%
phosphate (PO₄^3-): ≤0.0005%
silicate (as SiO₂): ≤0.001%
sulfate (SO₄^2-): ≤0.010%

痕量阳离子

Al: ≤0.0005%
As: ≤0.0001%
Ca: ≤0.0005%
Cu: ≤0.0002%
Fe: ≤0.0005%
K: ≤0.05%
Mg: ≤0.0005%
Ni: ≤0.00025%
Pb: ≤0.0005%
Zn: ≤0.001%
heavy metals (as Pb): ≤0.0005%

储存温度

2-30°C

SMILES string

[OH-].[Na+]

InChI

1S/Na.H2O/h;1H2/q+1;/p-1

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M