what type of reaction is this - Oxalic acid and sodium carbonate
Answers
Answer:
In some cases, a chemical reaction occurs when substances are mixed in either molten or aqueous state. Similarly, oxalic acid crystals and sodium carbonate react in water solution only.
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Answer:
Sodium oxalate, or disodium oxalate, is the sodium salt of oxalic acid with the formula Na2C2O4. It is a white, crystalline, odorless solid, that decomposes above 290 °C.[2]
Sodium oxalate
Disodium oxalate
Names
IUPAC name
Sodium ethanedioate
Other names
Oxalic acid, disodium salt
Sodium ethanedioate
Identifiers
CAS Number
62-76-0 ☑[1]
3D model (JSmol)
Interactive imageChEBI
CHEBI:132764 ☒
ChEMBL
ChEMBL182928 ☒
ChemSpider
5895 ☒
ECHA InfoCard
100.000.501
EC Number
200-550-3
PubChem CID
6125
RTECS number
K11750000
UNII
7U0V68LT9X ☑
CompTox Dashboard (EPA)
DTXSID1037018 Edit this at Wikidata
InChI
InChI=1S/C2H2O4.2Na/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2 ☒
Key: ZNCPFRVNHGOPAG-UHFFFAOYSA-L ☒
SMILES
C(=O)(C(=O)[O-])[O-].[Na+].[Na+]
Properties
Chemical formula
Na2C2O4
Molar mass
133.999 g mol−1
Density
2.34 g cm−3
Melting point
260 °C (500 °F; 533 K) decomposes above 290 °C[2]ChEBI
CHEBI:132764 ☒
ChEMBL
ChEMBL182928 ☒
ChemSpider
5895 ☒
ECHA InfoCard
100.000.501
EC Number
200-550-3
PubChem CID
6125
RTECS number
K11750000
UNII
7U0V68LT9X ☑
CompTox Dashboard (EPA)
DTXSID1037018 Edit this at Wikidata
InChI
InChI=1S/C2H2O4.2Na/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2 ☒
Key: ZNCPFRVNHGOPAG-UHFFFAOYSA-L ☒
SMILES
C(=O)(C(=O)[O-])[O-].[Na+].[Na+]
Properties
Chemical formula
Na2C2O4
Molar mass
133.999 g mol−1
Density
2.34 g cm−3
Melting point
260 °C (500 °F; 533 K) decomposes above 290 °C[2]Solubility in water
2.69 g/100 mL (0 °C)
3.7 g/100 mL (20 °C)
6.25 g/100 mL (100 °C)
Solubility
soluble in formic acid
insoluble in alcohol, ether
Structure
Crystal structure
monoclinic
Thermochemistry
Std enthalpy of
formation (ΔfH⦵298)
-1318 kJ/mol
Hazards
Safety data sheet
Oxford MSDS[unreliable source]
EU classification (DSD) (outdated)
Harmful Xn
NFPA 704 (fire diamond)
NFPA 704 four-colored diamond
010
Lethal dose or concentration (LD, LC):
LD50 (median dose)
11160 mg/kg (oral, rat)[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox referencesDisodium oxalate can act as a reducing agent, and it may be used as a primary standard for standardizing potassium permanganate (KMnO4) solutions.
The mineral form of sodium oxalate is natroxalate. It is only very rarely found and restricted to extremely sodic conditions of ultra-alkaline pegmatites.[3]