31434-M

Sodium chloride

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

• Synonym(s): Halite, NaCl
• 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

Properties

• 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
• SMILES string: [Na+].[Cl-]
• InChI: 1S/ClH.Na/h1H;/q;+1/p-1
• InChI key: FAPWRFPIFSIZLT-UHFFFAOYSA-M

Description

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.

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable