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31434-M

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:
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.

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 (PO43-): ≤5 mg/kg
sulfate (SO42-): ≤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

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 also available in glass bottles.

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Stefaan Derveaux et al.
Analytical chemistry, 80(1), 85-94 (2007-12-07)
The "layer-by-layer" (LbL) technology has been widely investigated for the coating of flat substrates and capsules with polyelectrolytes. In this study, LbL polyelectrolyte coatings applied at the surface of digitally encoded microcarriers were evaluated for the quantitative, sensitive, and simultaneous
Marianne Weulersse et al.
Immunity, 53(4), 824-839 (2020-10-15)
CD8+ T cells within the tumor microenvironment (TME) are exposed to various signals that ultimately determine functional outcomes. Here, we examined the role of the co-activating receptor CD226 (DNAM-1) in CD8+ T cell function. The absence of CD226 expression identified a subset
A M Gibson et al.
International journal of food microbiology, 6(2), 155-178 (1988-03-01)
The growth responses of salmonellae (mixed inoculum of Salmonella thompson, S. stanley and S. infantis) as affected by NaCl concentration, pH level and storage temperature were studied in laboratory medium. Growth curves were obtained at 5 concentrations of NaCl (0.5-4.5%
Eagleson M.
Concise Encyclopedia Chemistry, 996-996 (1994)

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