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Sigma-Aldrich

Sodium chloride

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

Synonym(s):

Halite, NaCl

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About This Item

Linear Formula:
NaCl
CAS Number:
7647-14-5
Molecular Weight:
58.44
Beilstein/REAXYS Number:
3534976
EC Number:
231-598-3
MDL number:
MFCD00003477
UNSPSC Code:
12352302
PubChem Substance ID:
329753765
NACRES:
NA.21

grade

ACS reagent
puriss. p.a.

Quality Level

200

agency

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

This product is available in HdPe bottles.

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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