氢氧化钠

产品名称

氢氧化钠, BioUltra, suitable for luminescence, ≥98.0% (T), pellets

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

InChI

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

SMILES string

[OH-].[Na+]

vapor density

>1 (vs air)

vapor pressure

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

product line

BioUltra

assay

≥98.0% (T)

form

pellets

Quality Level

100

mol wt

40.00 g/mol

concentration

80-100 % (w/w) (sodium hydroxide)

technique(s)

cell culture | mammalian: suitable

impurities

insoluble matter, passes filter test
≤0.0003% total nitrogen (N)
≤0.0005% silicon dioxide (SiO₂)
≤1.0% sodium carbonate (Na₂CO₃)

color

clear colorless

pH

>14 (20 °C, 100 g/L)

bp

1,390 °C/1,013 hPa

mp

318 °C (lit.)

solubility

H₂O: 1 M at 20 °C, clear, colorless

density

2.13 g/cm³

anion traces

chloride (Cl^-): ≤70 mg/kg
phosphate (PO₄^3-): ≤5 mg/kg
sulfate (SO₄^2-): ≤50 mg/kg

cation traces

Ag: ≤5 mg/kg
Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Hg: ≤0.1 mg/kg
K: ≤500 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

1 M in H₂O

UV absorption

λ: 260 nm A_max: 0.015
λ: 280 nm A_max: 0.01

suitability

in accordance for luminescence
suitable for luminescence