31434

Sigma-Aldrich

Sodium chloride

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

Synonym(s):
Halite, NaCl
Linear Formula:
NaCl
CAS Number:
Molecular Weight:
58.44
Beilstein/REAXYS Number:
3534976
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

grade

ACS reagent
puriss. p.a.

Agency/Method

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

vapor pressure

1.33 hPa ( 865 °C)

assay

≥99.5%

form

solid

impurities

acidity or alkalinity, complies
≤0.0001% hexacyanoferrate(II)
≤0.001% total nitrogen (N)
≤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)

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 (PO43-): ≤5 mg/kg
sulfate (SO42-): ≤10 mg/kg

cation traces

Al: ≤0.2 mg/kg
As: ≤0.5 mg/kg
Ba: ≤10 mg/kg
Ca: ≤20 mg/kg
Fe: ≤1 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
heavy metals: ≤3 ppm (by ICP-OES)

suitability

complies for appearance of solution

SMILES string

[Na+].[Cl-]

InChI

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

InChI key

FAPWRFPIFSIZLT-UHFFFAOYSA-M

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General description

Crystals of sodium chloride belong to the cubic crystal system. It is widely employed preservative for meat, vegetable and fish products. Its effect on the growth of salmonellae (mixed inoculum of Salmonella thompson, S. stanley and S. infantis) has been investigated in laboratory medium.

Application

Sodium chloride was used in the dissolution of polymers such as poly(allylamine hydrochloride), sodium poly(styrenesulfonate) and poly(acrylic acid).

Packaging

500 g in poly bottle
1, 6×1, 5, 4×5 kg in poly bottle
This product is also available in glass bottles.

storage_class_code

11 - Combustible Solids

WGK Germany

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

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