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Name	Oxalic acid dihydrate	EINECS	205-634-3
CAS No.	6153-56-6	Density	1.65 g/cm³
PSA	93.06000	LogP	-0.97300
Solubility	138 g/L (20 °C) in water	Melting Point	104-106 °C(lit.)
Formula	C₂H₆O₆	Boiling Point	108-109°C
Molecular Weight	126.066	Flash Point	157°C
Transport Information	UN 3261 8/PG 3	Appearance	white crystals
Safety	24/25	Risk Codes	21/22
Molecular Structure		Hazard Symbols	Xn, C
Synonyms	Ethanedioicacid, dihydrate (9CI);Oxalic acid, dihydrate (8CI);	Article Data	3

Oxalic acid dihydrate Synthetic route

: 62-76-0
sodium oxalate

: 6153-56-6
oxalic acid dihydrate

Conditions

Conditions	Yield
With hydrogenchloride; water at 80℃; for 1h; Product distribution / selectivity;	56%

cis-{Pt(PMe3)2(OH)2}*nH2O (n=2-3): cis-{Pt(PMe3)2(OH)2}*nH2O (n=2-3)

: 6153-56-6
oxalic acid dihydrate

: 94929-01-8
{Pt(PMe3)2(ox)}

Conditions

Conditions	Yield
In not given	100%

: 553-26-4
4,4'-bipyridine

: iron(II) bromide hexahydrate

: 6153-56-6
oxalic acid dihydrate

: 226401-77-0
(2).infin.[Fe(oxalate)(4,4'-bipyridine)]

Conditions

Conditions	Yield
In water byproducts: HBr, H2O; molar ratio Fe:oxalate:bipy:H2O=1:1:1:444, digestion bomb, 170°C,7 d; washing (water, Me2CO), drying in air;	99%

: 553-26-4
4,4'-bipyridine

: cobalt(II) bromide hexahydrate

: 6153-56-6
oxalic acid dihydrate

: 226401-78-1
(2).infin.[Co(oxalate)(4,4'-bipyridine)]

Conditions

Conditions	Yield
In water byproducts: HBr, H2O; molar ratio Co:oxalate:bipy:H2O=1:1:1:444, digestion bomb, 170°C,7 d;	99%

: 7209-38-3
1,4-bis(3-aminopropyl)piperazine

: iron(III) chloride hexahydrate

: 86119-84-8, 7664-38-2
phosphoric acid

: 7732-18-5
water

: 6153-56-6
oxalic acid dihydrate

: H3NC3H6NHC4H8NHC3H6NH3(4+)*3Fe(3+)*2C2O4(2-)*3HPO4(2-)*PO4(3-)*100H2O=C10H28N4[Fe3(C2O4)2(HPO4)3(PO4)(H2O)]*99H2O

Conditions

Conditions	Yield
In water High Pressure; mixt. of FeCl36H2O, H2C2O42H2O, H3PO4, 1,4-bis(3-aminopropyl)piperazine, and water (pH 4.6) heated at 120°C for 3 d in Teflon-lined stainless-steel Parr acid digestion bomb, slow cooling at 5°C/h to room temp.;	99%

...Expand

: 65-23-6
5-hydroxy-6-methyl-3,4-pyridinedimethanol

: 11113-50-1
boric acid

: 6153-56-6
oxalic acid dihydrate

: [B(oxalato)(pyridoxine(-H))]

Conditions

Conditions	Yield
In toluene byproducts: H2O; boric acid, pyridoxine and oxalic acid*2H2O in 1:1:1 molar ratio refluxed in toluene during 6 h under continuous sepn. of react. water; filtered; dried at 120°C; elem. anal.;	99%

: 6153-56-6
oxalic acid dihydrate

: 34851-41-7
tetrabutyl ammonium methoxide

: 33081-83-3
bis(tetrabutylammonium)oxalate

Conditions

Conditions	Yield
In methanol for 4h;	98%

: indium(III) oxide

: 86119-84-8, 7664-38-2
phosphoric acid

: 6153-56-6
oxalic acid dihydrate

: 110-60-1
1,4-diaminobutane

: (1,4-diaminobutane(+2H))0.5*In(HPO4)(H2PO4)(oxalate)0.5

Conditions

Conditions	Yield
In water at 150℃; for 168h; Autoclave;	95%

: 6153-56-6
oxalic acid dihydrate

: 75719-86-7
2,3,4,6-tetra-O-benzyl-1-O-(N-benzyloxycarbonylglycylglycylglycyl)-α-D-glucopyranose

: 75719-99-2
1-O-(glycylglycylglycyl)-α-D-glucopyranose mono-oxalate

Conditions

Conditions	Yield
With hydrogen; palladium on activated charcoal In 2-methoxy-ethanol; acetic acid for 24h;	92%

: 6153-56-6
oxalic acid dihydrate

: 75719-88-9
2,3,4,6-tetra-O-benzyl-1-O-(N-benzyloxycarbonyl-L-phenylalanylglycylglycyl)-β-D-glucopyranose

: 75720-06-8
1-O-(L-phenylalanylglycylglycyl)-β-D-glucopyranose mono-oxalate

Conditions

Conditions	Yield
With hydrogen; palladium on activated charcoal In 2-methoxy-ethanol; acetic acid for 20h;	92%

Oxalic acid dihydrate Chemical Properties

Molecular structure of Ethanedioic acid, dihydrate (CAS NO.6153-56-6) is:

Product Name: Ethanedioic acid, dihydrate
CAS Registry Number: 6153-56-6
IUPAC Name: oxalic acid dihydrate
Molecular Weight: 126.06544 [g/mol]
Molecular Formula: C₂H₆O₆
H-Bond Donor: 4
H-Bond Acceptor: 6
EINECS: 205-634-3
Melting Point: 104-106 °C(lit.)
Water Solubility: 138 g/L (20 °C)
Sublimation: 157 °C
Density: 1.65 g/cm³
Flash Point: 188.8 °C
Enthalpy of Vaporization: 67.15 kJ/mol
Boiling Point: 365.1 °C at 760 mmHg
Vapour Pressure: 2.51E-06 mmHg at 25°C
Stability: Stable. Incompatible with bases, acid chlorides, steel, silver, silver compounds, moisture. Avoid contact with metals.
Product Categories: Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts

Oxalic acid dihydrate Uses

Ethanedioic acid, dihydrate (CAS NO.6153-56-6) can be used in wood bleaching and brightener, stain remover.

Oxalic acid dihydrate Safety Profile

Safty information about Ethanedioic acid, dihydrate (CAS NO.6153-56-6) is:
Hazard Codes: Harmful Xn, Corrosive C
Risk Statements: 21/22
R21/22:Harmful in contact with skin and if swallowed.
Safety Statements: 24/25
S24/25:Avoid contact with skin and eyes.
RIDADR: UN 3261 8/PG 3
WGK Germany: 1
RTECS: RO2450000
HazardClass: 8
PackingGroup: III
HS Code: 29171100

Oxalic acid dihydrate Specification

Ethanedioic acid, dihydrate , its cas register number is 6153-56-6. It also can be called Dicarbolic acid dihydrate ; Ethanedioic acid dihydrate .It is a white crystals.

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