disodium dioxochromiumbis(olate)

• ChemBase ID: 129513
• Molecular Formular: CrNa2O4
• Molecular Mass: 161.97324
• Monoisotopic Mass: 161.89970454
• SMILES: [O-][Cr](=O)(=O)[O-].[Na+].[Na+]
• Canonical SMILES: [O-][Cr](=O)(=O)[O-].[Na+].[Na+]
• InChI: InChI=1S/Cr.2Na.4O/q;2*+1;;;2*-1
• InChIKey: PXLIDIMHPNPGMH-UHFFFAOYSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: disodium dioxochromiumbis(olate)
• IUPAC Traditional name: disodium chromate(2-)
• Synonyms: Sodium chromate; Chromic acid, (Na₂CrO₄), disodium salt; Chromium disodium oxide; Rachromate; Sodium chromate; Sodium chromate, anhydrous; 铬酸钠; 无水铬酸钠

Database IDs

• CAS Number: 7775-11-3
• EC Number: 231-889-5
• MDL Number: MFCD00003484
• Merck Index: 148601
• PubChem SID: 24858629; 162223805
• PubChem CID: 24488
• Wikipedia Title: Sodium_chromate

CALCULATED PROPERTIES

• Acid pKa: -2.30103
• H Acceptors: 4
• H Donor: 0
• LogD (pH = 5.5): -6.720884
• LogD (pH = 7.4): -7.0465326
• Log P: -2.5252
• Molar Refractivity: 5.7716 cm^3
• Polarizability: 6.1887565 Å^3
• Polar Surface Area: 80.26 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: 0.344 g/100 mL (25 °C) in methanol; 53 g/100 ml (20 °C) ; 87.3 g/100 mL (30 °C) in water; slightly soluble in ethanol
• Apperance: solid; yellow crystals
• Melting Point: 792 °C (anhydrous) ; 20 °C (decahydrate); 792°C
• Flash Point: Non-flammable
• Density: 2.698 g/cm^3; 2.72
• Odor: odorless
• Std enthalpy of formation: -1329 kJ/mol

Safety Information

• RTECS: GB2955000
• European Hazard Symbols: Carc. Cat. 2; Corrosive (C); Dangerous for the environment (N); Harmful (Xn); Muta. Cat. 2; Nature polluting (N); Repr. Cat. 2; Highly toxic (T+); Very toxic (T+)
• UN Number: 3288; UN3288
• German water hazard class: 3
• Hazard Class: 6.1
• Packing Group: 2; II
• Risk Statements: 45-46-60-61-21-25-26-34-42/43-48/23-50/53; R45, R46, R60, R61, R21, R25, R26, R34, R42/43, R48/23, R50/53
• Safety Statements: 53-45-60-61; S53, S45, S60, S61
• TSCA Listed: 是
• EU Index: 024-018-00-3
• GHS Pictograms: GHS05; GHS06; GHS08; GHS09
• GHS Signal Word: Danger
• NFPA704:
  

  0

  3

  OX
• GHS Hazard statements: H301-H311-H330-H317-H334-H340-H350-H360-H372-H314-H318-H400-H410; H301-H312-H314-H317-H330-H334-H340-H350-H360FD-H372-H410
• GHS Precautionary statements: P201-P260-P273-P280-P284-P301 + P310; P260-P301+P310-P303+P361+P353-P304+P340-P305+P351+P338-P320-P330-P361-P405-P501A
• Personal Protective Equipment: Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
• RID/ADR: UN 3288 6.1/PG 2

Product Information

• Purity: 98%
• Linear Formula: Na2CrO4

DETAILS

Sigma Aldrich - 307831

Packaging
5, 100, 500 g in glass bottle