草酸氢钾

Description

Potassium hydrogen oxalate · CAS 127-95-7 · C2HKO4. UNII L3W2519LG2. Density: 2.0.

Identification

CAS Registry Number	127-95-7
PubChem CID	23662386
Molecular formula	C2HKO4
IUPAC name	potassium 2-hydroxy-2-oxoacetate
UNII (FDA)	L3W2519LG2

Computed Descriptors

Molecular Weight	128.13
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	1
Exact Mass	127.95118999
Monoisotopic Mass	127.95118999
Topological Polar Surface Area	77.4
Heavy Atom Count	7
Formal Charge	0
Complexity	87.7

Physical & Chemical Properties

Density	2.0

Physical description & handling notes

• Potassium hydrogen oxalate is an odorless white solid. Sinks in water. (USCG, 1999)
• Colorless solid; Slightly hygroscopic; Slightly soluble in alcohol; [HSDB] Colorless crystals; [MSDSonline]
• Monoclinic, colorless crystals
• BITTER, SHARP TASTE
• Decomposes
• 2 at 68 °F (USCG, 1999) - Denser than water; will sink

GHS Hazard Classification

Reported hazard statements	H302 (100%), H312 (100%), H315, H318, H335, H373

Documented Uses

• Found in many plants; Used for removing ink stains, scouring metals, and cleaning wood; Also used in photography, as a mordant in dyeing, for bleaching stearic acids, and as a veterinary anticoagulant; [HSDB]
• Photographic Processing [Category: Other]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• AGENT TO REMOVE INK STAINS AND CLEAN WOOD; SCOURING AGENT FOR METALS; BLEACHING AGENT FOR STEARIC ACID; MORDANT IN TEXTILE DYEING
• Removing ink stains, scouring metals, cleaning wood; photography; as mordant in dyeing; bleaching stearic acids
• DISSOLVING NEUTRAL POTASSIUM OXALATE AND OXALIC ACID IN WATER FOLLOWED BY CRYSTALLIZATION

Synonyms

Potassium hydrogen oxalate; 127-95-7; Potassium binoxalate; Kleesalz; POTASSIUM ACID OXALATE; Salt of sorrel; Sorrel salt; Sal Acetosella; Potassium oxalate (KHC2O4); Essential salt of lemon; Potassium salt of sorrel; Oxalic acid, monopotassium salt; L3W2519LG2; DTXSID6059572; RefChem:1096539; DTXCID4033891

Frequently Asked Questions

What are the CAS number and molecular formula of Potassium hydrogen oxalate?

CAS 127-95-7; molecular formula C2HKO4; molecular weight — g/mol.

What other names is Potassium hydrogen oxalate known by?

Potassium hydrogen oxalate, 127-95-7, Potassium binoxalate, Kleesalz, POTASSIUM ACID OXALATE, Salt of sorrel.

Is Potassium hydrogen oxalate classified as hazardous?

Hazard statements reported: H302, H312, H315, H318, H335.

What are the key physical properties of Potassium hydrogen oxalate?

Density: 2.0.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.