氯化钠

产品名称

氯化钠, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5%

InChI key

FAPWRFPIFSIZLT-UHFFFAOYSA-M

InChI

1S/ClH.Na/h1H;/q;+1/p-1

SMILES string

[Na+].[Cl-]

grade

ACS reagent
puriss. p.a.

agency

USP/NF
reag. ISO
reag. Ph. Eur.

vapor pressure

1 hPa ( 865 °C)

assay

≥99.5%

form

solid

impurities

acidity or alkalinity, complies
≤0.0001% hexacyanoferrate(II)
≤0.005% free acid (as HCl)
≤0.005% free alkali (as NaOH)
≤0.005% in water insoluble matters
≤0.01% Mg, alkaline earth metals (as Ca)
≤10 mg/kg total nitrogen (N)

loss

≤0.2% loss on drying, 130 °C

pH

5.0-8.0 (25 °C, 5%)

mp

801 °C (lit.)

solubility

water: soluble 100 mg/mL, clear, colorless

anion traces

bromide (Br^-): ≤50 mg/kg
chlorate, nitrate (as NO₃^-): ≤30 mg/kg
iodide (I^-): ≤10 mg/kg
phosphate (PO₄^3-): ≤5 mg/kg
sulfate (SO₄^2-): ≤10 mg/kg

cation traces

Al: ≤0.00002%
As: ≤0.00005%
Ba: ≤0.001%
Ca: ≤0.002%
Fe: ≤0.0001%
K: ≤0.005%
Mg: ≤0.0005%
heavy metals: ≤3 mg/kg (by ICP-OES)

suitability

complies for appearance of solution