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Product Name: Oxalic Acid 96% 99.6% CAS. No. 6153-56-6 Model NO.: 99.6%min Colour: White Source: Hydrolysis Appearance: Powder Alkyl No.: Unsaturated Acid Carboxyl No.: Dicarboxylic Acid EINECS: 205-634-3 Formula: H2c2o4 CAS No.: 6153-56-6 Store: Dry and Cool Place M G: 126.07 Trademark: JK Transport Package: 25kg Bags or 900kg Bags Specification: 99.6% Origin: China HS Code: 2917111000 Product Description Oxalic AcidCAS NO.: 6153-56-6Molecular Forula: H2C2O4.2H2OProperty: white transparent crystal combining wo crystal water, Melting point: 101-102ºC, Specific agravity: 1.653, easily sublimate at 100ºC, easily dissolve in alcohol and water.Packing: 25kg plastic woven bags or 900kg plastic woven bagsUsage:Matallurgy Industry: as precipitating and resolving agent for rare earth metal, etc.Oranic synthesis: for 2123 resin, urea form aldehyde powder etc.Light industry: Polishing of mable, removing rust, bleaching products of leather, wood and aluminium etc.Printing industry: to be used as dyeing agent.Medicine industry: for maing tetracydine, HCL etc.Others: As laboratory agent, solvents activator and basic materials for chemical industry.Specification: Analysis resultsTest ItemsStandardTest ResultsOxalic acid (as H2C2O42H2O)99.6%min99.65%Sulfate (as SO4)0.07%max0.007%ignited residue (850 degree)0.01%max0.005%Chloride (Cl)0.0005%max0.0004%Calcium(Ca)0.0005%max0.0003%Iron (Fe)0.0005%max0.00007%Heavy metal (as Pb)0.0005%max0.0003%Oxalic acid dihydrate Basic informationProduct Name:Oxalic acid dihydrateSynonyms:OXALIC ACID SOLUTION, 10% W/VOXALIC ACID SOLUTION, 10% W/VOXALIC ACID SOLUTION, 10% W/VOXALIC ACID SOLUTION, 10% W/V;OXALIC ACID, DIHYDRATE, HIGH PURITYOXALIC ACID, DIHYDRATE, HIGH PURITYOXALIC ACID, DIHYDRATE, HIGH PURITYOXALIC ACID, DIHYDRATE, HIGH PURITY;OXALIC ACID, DIHYDRATE, REAGENT (ACS)OXALIC ACID, DIHYDRATE, REAGENT (ACS)OXALIC ACID, DIHYDRATE, REAGENT (ACS)OXALIC ACID, DIHYDRATE, REAGENT (ACS);OXALIC ACID-2-HYDRATE TECHNICAL;OXALIC ACID-2-HYDRATE EXTRA PURE;OXALIC ACID 2H2O;OXALIC ACID-2-HYDRATE;OXALIC ACID DIHYDRATECAS:6153-56-6MF:C2H6O6MW:126.07EINECS:612-167-2Product Categories:Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts;others;C1 to C5;Essential Chemicals;Inorganic Salts;Lipid Library;metabolic Pathways;metabolites and Cofactors on the metabolic Pathways Chart;Reagent Plus;Research Essentials;Solutions and Reagents;Building Blocks;Carbonyl Compounds;Carboxylic Acids;Chemical Synthesis;Lipid;metabolic Libraries;metabolomics;Organic Building Blocks;ACS GradeMol File:6153-56-6.molOxalic acid dihydrate Chemical PropertiesMelting point104-106°C(lit.)Boiling point108-109°Cdensity1,65 g/cm3vapor density4.4 (vs air)vapor pressure<0.01 mm Hg ( 20 °C)Fp157°Cstorage temp.Store at RT.solubilityH2O: soluble1M at 20°C, clear, colorlessformPowder/SolidSpecific Gravity1.65colorYellow to yellow-greenPH~1.0 (25ºC, 1M in H2O)PH Range6 - 8 at 25 °CWater Solubility138 g/L (20 ºC)Merck14,6911Sublimation157 ºCBRN3679436Exposure limitsTLV-TWA for anhydrous acid 1 mg/m3(ACGIH, MSHA, and OSHA); TLV-STEL 2 mg/m3(ACGIH).Stability:Stable. Incompatible with bases, acid chlorides, steel, silver, silver compounds, moisture. Avoid contact with metals.InChIKeyGEVPUGOOGXGPIO-UHFFFAOYSA-NCAS Database Reference6153-56-6(CAS Database Reference)NIST Chemistry ReferenceOxalic acid dihydrate(6153-56-6)EPA Substance Registry SystemOxalic acid dihydrate (6153-56-6)Safety InformationHazard CodesXn,CRisk Statements21/22-41Safety Statements24/25-39-37-36-26RIDADRUN 3261 8/PG 3WGK Germany1RTECSRO2450000TSCAYesHazardClass8PackingGroupIIIHS Code29171100ToxicityLD50 orally in Rabbit: 375 mg/kgMSDS InformationProviderLanguageEthanedionic acidEnglishSigmaAldrichEnglishACROSEnglishALFAEnglishOxalic acid dihydrate Usage And SynthesisChemical Propertieswhite crystalsUsesOxalic 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.UsesA diprotic reducing agent used as a buffer.UsesOxalic 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.Reactivity ProfileAt 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 HazardOxalic 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 MethodsCrystallise 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.]