ChemicalBook > Product Catalog > Organic Chemistry > Carboxylic acids and derivatives > Acyclic carboxylic acid > Oxalic acid dihydrate
Oxalic acid dihydrate
- Product Name:Oxalic acid dihydrate
- Synonyms: 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 DIHYDRATE
- Product 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 Grade
- Mol File:6153-56-6.mol
Oxalic acid dihydrate Chemical Properties
- Melting point:104-106 °C(lit.)
- Boiling point:108-109°C
- Density 1,65 g/cm3
- vapor density 4.4 (vs air)
- vapor pressure <0.01 mm Hg ( 20 °C)
- Flash point:157°C
- storage temp. Store at RT.
- solubility H2O: soluble1M at 20°C, clear, colorless
- form Powder/Solid
- Specific Gravity1.65
- color Yellow to yellow-green
- PH~1.0 (25℃, 1M in H2O)
- Water Solubility 138 g/L (20 ºC)
- Sublimation 157 ºC
- Merck 14,6911
- BRN 3679436
- Exposure 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.
- CAS DataBase Reference6153-56-6(CAS DataBase Reference)
- NIST Chemistry ReferenceOxalic acid dihydrate(6153-56-6)
- EPA Substance Registry SystemEthanedioic acid, dihydrate(6153-56-6)
Oxalic acid dihydrate Usage And Synthesis
- Chemical Propertieswhite crystals
- UsesOxalic 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.]
Oxalic acid dihydrate Preparation Products And Raw materials
- CHROMIC POTASSIUM OXALATE Basic Green 4 DI(N-SUCCINIMIDYL) OXALATE Oxalic acid dihydrate Shikimic acid Disodium oxalate Hydrazinium hydroxide Oxalic acid Diethyl oxalate Folic acid Citric acid Ethyl 2-(Chlorosulfonyl)acetate Ascoric Acid Hyaluronic acid Ammonium oxalate monohydrate FOROXYMITHINE Chloral hydrate Oxaliplatin
Oxalic acid dihydrateSupplierMore
- Company Name:Shanghai guanghua technology co., LTD Gold
- Company Name:Spectrum Chemical Manufacturing Corp. Gold
- Company Name:Shanghai Macklin Biochemical Co.,Ltd. Gold
- Company Name:Yonghua Chemical Technology (Jiangsu) Co., Ltd. Gold
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- Company Name:Anhui Royal Chemical Co., Ltd. Gold