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Oxalic acid dihydrate
Cas No: 6153-56-6
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High quality Oxalic Acid Dihydrate supplier in China
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Oxalic acid dihydrate
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Oxalic acid dihydrate
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TIANFU-CHEM CAS:6153-56-6 Oxalic acid dihydrate
Cas No: 6153-56-6
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6153-56-6 Usage

Chemical Properties

white crystals

Uses

Oxalic acid dihydrate is a purifying agent in pharmaceutical industry, special in antibiotic medication, such as Oxytetracycline , Chloramphenicol , etc; * Precipitating agent in Rare-earth mineral processing; * Bleaching agent in the textile activities, wood pulp bleaching; * Rust-remover for Metal treatment; * Grinding agent, such as Marble polishing; * Waste water treatment, removing calcium from water.

Uses

A diprotic reducing agent used as a buffer.

Uses

Oxalic acid occurs in the cell sap of Oxalisand Rumex species of plants as the potassium and calcium salt. It is the metabolicproduct of many molds (Merck 1989). Thereare a large number of applications of thiscompound, including indigo dyeing; calicoprinting; removal of paint, rust, and inkstains; metal polishing; bleaching leather; inpesticide compositions and manufacture ofoxalates. It is also used as an analyticalreagent and as a reducing agent in organicsynthesis.Addition of oxalic acid to chromic acid forthe anodizing of Al alloy has been reported tomodify the morphology and improve the corrosion performance of anodic films (Moutarlier et al. 2004). Also, it is a very effectiveadditive for the ozone treatment of cellulose.It prevents the degradation of cellulose fromozone bleaching.

General Description

Oxalic acid dihydrate (OAD) crystals are reported to be monoclinic with P21/n space group. The electron density of OAD has been obtained using X-ray diffraction studies under high resolution.

Reactivity Profile

At high temperatures oxalic acid decomposes, producing toxic carbon monoxide, andformic acid. Mixing with warm sulfuric acidmay produce the same products: CO2, CO,and formic acid. It reacts with many silvercompounds, forming explosive silver oxalate(NFPA 1986). An explosion occurred whenwater was added to an oxalic acid/sodiumchlorite mixture in a stainless steel beaker.There was also evolution of highly toxicchlorine dioxide gas (MCA 1962). Oxalicacid reacts violently with strong oxidizingsubstances.

Health Hazard

Oxalic acid is a strong poison. The toxicsymptoms from ingestion include vomiting, diarrhea, and severe gastrointestinaldisorder, renal damage, shock, convulsions,and coma. Death may result from cardiovascular collapse. The toxicity arises asoxalic acid reacts with calcium in the tissuesto form calcium oxalate, thereby upsettingthe calcium/potassium ratio (ACGIH 1986).Deposition of oxalates in the kidney tubulesmay result in kidney damage (Hodgson et al.1988).Oxalic acid may be absorbed into the bodythrough skin contact. It is corrosive to theskin and eyes, producing burns. Dilute solutions of 10% strength may be a mild irritantto human skin. However, the inhalation toxicity is low because of its low vapor pressure.Airborne dusts can produce eyeburn and irritation of the respiratory tract.LD50 value, oral (rats): 375 mg/kg.

Purification Methods

Crystallise oxalic acid from distilled water. Dry it in a vacuum over H2SO4. The anhydrous acid can be obtained by drying at 100o overnight. [Beilstein 2 IV 1819.]
InChI:InChI=1/C2H2O4.2H2O/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H2

6153-56-6 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Alfa Aesar (33262)  Oxalic acid dihydrate, ACS, 99.5-102.5%    6153-56-6 50g 265.0CNY Detail
Alfa Aesar (33262)  Oxalic acid dihydrate, ACS, 99.5-102.5%    6153-56-6 250g 466.0CNY Detail
Alfa Aesar (33262)  Oxalic acid dihydrate, ACS, 99.5-102.5%    6153-56-6 1kg 659.0CNY Detail
Alfa Aesar (33262)  Oxalic acid dihydrate, ACS, 99.5-102.5%    6153-56-6 5kg 2318.0CNY Detail
Alfa Aesar (A13866)  Oxalic acid dihydrate, 98%    6153-56-6 250g 229.0CNY Detail
Alfa Aesar (A13866)  Oxalic acid dihydrate, 98%    6153-56-6 1000g 643.0CNY Detail
Alfa Aesar (A13866)  Oxalic acid dihydrate, 98%    6153-56-6 5000g 2247.0CNY Detail
Fluka (93722)  Oxalicaciddihydrate  TraceSELECT®, ≥99.9999% (metals basis) 6153-56-6 93722-100G 2,439.45CNY Detail
Sigma-Aldrich (33506)  Oxalicaciddihydrate  puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5% (manganometric) 6153-56-6 33506-250G 586.17CNY Detail
Sigma-Aldrich (33506)  Oxalicaciddihydrate  puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5% (manganometric) 6153-56-6 33506-500G 1,213.29CNY Detail
Sigma-Aldrich (33506)  Oxalicaciddihydrate  puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5% (manganometric) 6153-56-6 33506-1KG 1,773.72CNY Detail
Sigma-Aldrich (33506)  Oxalicaciddihydrate  puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5% (manganometric) 6153-56-6 33506-5KG 5,861.70CNY Detail

6153-56-6SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name Oxalic acid dihydrate

1.2 Other means of identification

Product number -
Other names oxalic acid,dihydrate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:6153-56-6 SDS

6153-56-6Synthetic route

sodium oxalate
62-76-0

sodium oxalate

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

Conditions
ConditionsYield
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)

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

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

{Pt(PMe3)2(ox)}

Conditions
ConditionsYield
In not given100%
4,4'-bipyridine
553-26-4

4,4'-bipyridine

iron(II) bromide hexahydrate

iron(II) bromide hexahydrate

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

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

(2).infin.[Fe(oxalate)(4,4'-bipyridine)]

Conditions
ConditionsYield
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%
4,4'-bipyridine
553-26-4

4,4'-bipyridine

cobalt(II) bromide hexahydrate

cobalt(II) bromide hexahydrate

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

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

(2).infin.[Co(oxalate)(4,4'-bipyridine)]

Conditions
ConditionsYield
In water byproducts: HBr, H2O; molar ratio Co:oxalate:bipy:H2O=1:1:1:444, digestion bomb, 170°C,7 d;99%
1,4-bis(3-aminopropyl)piperazine
7209-38-3

1,4-bis(3-aminopropyl)piperazine

iron(III) chloride hexahydrate

iron(III) chloride hexahydrate

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

phosphoric acid

water
7732-18-5

water

oxalic acid dihydrate
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

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

Conditions
ConditionsYield
In water High Pressure; mixt. of FeCl3*6H2O, H2C2O4*2H2O, 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%
5-hydroxy-6-methyl-3,4-pyridinedimethanol
65-23-6

5-hydroxy-6-methyl-3,4-pyridinedimethanol

boric acid
11113-50-1

boric acid

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

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

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

Conditions
ConditionsYield
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%
oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

tetrabutyl ammonium methoxide
34851-41-7

tetrabutyl ammonium methoxide

bis(tetrabutylammonium)oxalate
33081-83-3

bis(tetrabutylammonium)oxalate

Conditions
ConditionsYield
In methanol for 4h;98%
indium(III) oxide

indium(III) oxide

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

phosphoric acid

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

1,4-diaminobutane
110-60-1

1,4-diaminobutane

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

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

Conditions
ConditionsYield
In water at 150℃; for 168h; Autoclave;95%
oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

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

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

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

1-O-(glycylglycylglycyl)-α-D-glucopyranose mono-oxalate

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In 2-methoxy-ethanol; acetic acid for 24h;92%
oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

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

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

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

1-O-(L-phenylalanylglycylglycyl)-β-D-glucopyranose mono-oxalate

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In 2-methoxy-ethanol; acetic acid for 20h;92%
N-phenylbenzohydroxamic acid
304-88-1

N-phenylbenzohydroxamic acid

boric acid
11113-50-1

boric acid

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

{C6H5CON(C6H5)O}{O(O)CC(O)O}B
87285-07-2

{C6H5CON(C6H5)O}{O(O)CC(O)O}B

Conditions
ConditionsYield
In benzene heating under reflux for 6 h; evapn. of solvent, crystd. with petroleum ether several times, elem. anal.;92%
oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

zinc(II) acetate dihydrate
5970-45-6

zinc(II) acetate dihydrate

zinc oxalate dihydrate

zinc oxalate dihydrate

Conditions
ConditionsYield
In ethylene glycol byproducts: acetic acid, H2O; oxalic acid added slowly with stirring to soln. of zinc acetate at room temp. for 12 h; filetred, washed (acetone) several times, dried at 120°C; XRD;92%
In methanol byproducts: acetic acid, H2O; oxalic acid added slowly with stirring to soln. of zinc acetate at room temp. for 12 h; filetred, washed (acetone) several times, dried at 120°C; XRD;90%
uranyl nirate hexahydrate

uranyl nirate hexahydrate

ammonium hydroxide

ammonium hydroxide

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

ammonium dioxoperoxy(oxalato)uranate(VI) hydrate

ammonium dioxoperoxy(oxalato)uranate(VI) hydrate

Conditions
ConditionsYield
With water; dihydrogen peroxide In water to soln. of UO2(NO3)2*6H2O added soln. of NH4OH with stirring; filtered; to aq. suspn. added C2O4H2*2H2O and stirred for 5 min; excess of 30% H2O2 added and stirred for 15 min; soln. of NH4OH added (pH = 6); ethanol added; centrifuged; washed with ethanol; dried in vacuo; elem. anal.;91%
Cu(acetylacetonate)(triphenylphosphine)2

Cu(acetylacetonate)(triphenylphosphine)2

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

{Cu2(μ-C2O4)(PPh3)4}

{Cu2(μ-C2O4)(PPh3)4}

Conditions
ConditionsYield
In methanol; dichloromethane byproducts: acetylacetone; react. mixt. (molar ratio Cu-complex:oxalic acid = 1:0.5) stirred for 24 h at room temp. in CH2Cl2/MeOH (10:1); filtration, evapn. to dryness; extn. of the residue with CH2Cl2; addn. of Et2O; elem. anal., mol. weight measurement;90%
tetrakis(hydroxylamine)-platinum(II) hydroxide

tetrakis(hydroxylamine)-platinum(II) hydroxide

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

trans-tetrahydroxylaminodioxalatoplatinum(IV)

trans-tetrahydroxylaminodioxalatoplatinum(IV)

Conditions
ConditionsYield
With dihydrogen peroxide In water addn. of 30% H2O2 to H2C2O4*2H2O in H2O; (Pt(NH2OH)4)(OH)2 was added in portions to the soln.; standing in the dark for 72 h; mechanism discussed;; filtration through a glass filter; the ppt. was washed with cold H2O, acetone, and ether, and dried in air; elem. anal.;;90%
trimethyl phosphite
512-56-1

trimethyl phosphite

potassium tetranitroplatinate(IV)

potassium tetranitroplatinate(IV)

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

4K(1+)*Pt4(6+)*4NO2(1-)*C2O4(2-)*4OH(1-)*2(CH3O)3PO=K4{Pt4(NO2)4(C2O4)(OH)4}*2(CH3O)3PO

4K(1+)*Pt4(6+)*4NO2(1-)*C2O4(2-)*4OH(1-)*2(CH3O)3PO=K4{Pt4(NO2)4(C2O4)(OH)4}*2(CH3O)3PO

Conditions
ConditionsYield
In further solvent(s) trimethylphosphate is added to Pt complex, mixt. is carefully heated at 180-200°C until sample dissolves, cooling to room temp., filtn., addn. of oxalic acid under stirring; ppt. is filtered, washed (CHCl3/EtOH), elem. anal.;90%
potassium tetranitroplatinate(IV)

potassium tetranitroplatinate(IV)

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

2K(1+)*Pt(NO2)2(HC2O4)2(2-)=K2{Pt(NO2)2(HC2O4)2}

2K(1+)*Pt(NO2)2(HC2O4)2(2-)=K2{Pt(NO2)2(HC2O4)2}

Conditions
ConditionsYield
With (CH3O)3PO In further solvent(s) trimethylphosphate is added to Pt complex, mixt. is carefully heated at 140-160°C until sample dissolves, cooling to room temp., filtn., addn. of oxalic acid under stirring, react. time 2-5 h; ppt. is filtered, washed (cold H2O/EtOH), elem. anal.;90%
potassium tetranitroplatinate(IV)

potassium tetranitroplatinate(IV)

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

2K(1+)*Pt(NO2)3(HC2O4)(2-)=K2{Pt(NO2)3(HC2O4)}

2K(1+)*Pt(NO2)3(HC2O4)(2-)=K2{Pt(NO2)3(HC2O4)}

Conditions
ConditionsYield
With (CH3O)3PO In further solvent(s) trimethylphosphate is added to Pt complex, mixt. is carefully heated at 100-120°C until sample dissolves, cooling to room temp., filtn., addn. of oxalic acid under stirring, react. time 2-5 h; ppt. is filtered, washed (H2O/EtOH), elem. anal.;90%
oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

dichlorodiethylstannane
866-55-7

dichlorodiethylstannane

2C2H5(1-)*Sn(4+)*(COO)2(2-)*H2O=(C2H5)2Sn(C2O4)*H2O

2C2H5(1-)*Sn(4+)*(COO)2(2-)*H2O=(C2H5)2Sn(C2O4)*H2O

Conditions
ConditionsYield
In water slow pouring acid soln. to soln. of Sn-compd. (stirring); after 1 h ppt. filtration off; elem. anal.;90%
water
7732-18-5

water

vanadia

vanadia

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

V2O2(4+)*2OH(1-)*C2O4(2-)*2H2O=V2O2(OH)2(C2O4)*2H2O

V2O2(4+)*2OH(1-)*C2O4(2-)*2H2O=V2O2(OH)2(C2O4)*2H2O

Conditions
ConditionsYield
With H3BO3 In water High Pressure; V2O5, H2C2O4*2H2O, H3BO3 and H2O mixed in a molar ratio 1:14:29:151, heated in an autoclave at 155°C for 20 d; cooled to room temp.(5°C/h), filtered, washed (H2O), dried at room temp., elem. anal.;90%
4-amino-1,2,4-triazole
584-13-4

4-amino-1,2,4-triazole

ferrous(II) sulfate heptahydrate

ferrous(II) sulfate heptahydrate

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

[Fe(μ-ox)(4-amino-1,2,4-triazole)2]n

[Fe(μ-ox)(4-amino-1,2,4-triazole)2]n

Conditions
ConditionsYield
In water soln. (10 ml) of H2C2O4*2H2O (0.2 mmol) added dropwise to soln. (25 ml) of (C2H2N3)NH2 (1.00 mmol) and FeSO4*7H2O (0.2 mmol); ppt. sepd.; washed with cold H2O and Et2O; dried in air; elem. anal.;90%
4-amino-1,2,4-triazole
584-13-4

4-amino-1,2,4-triazole

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

zinc(II) chloride
7646-85-7

zinc(II) chloride

[Zn(μ-ox)(4-amino-1,2,4-triazole)2]n

[Zn(μ-ox)(4-amino-1,2,4-triazole)2]n

Conditions
ConditionsYield
In water soln. (10 ml) of H2C2O4*2H2O (0.2 mmol) added dropwise to soln. (25 ml) of (C2H2N3)NH2 (1.00 mmol) and ZnCl2 (0.40 mmol); ppt. sepd.; washed with cold H2O and Et2O; dried in air; elem. anal.;90%

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