Potassium oxalate monohydrate Chemical Properties

Melting point:

356 °C

Density 

2.127

vapor pressure 

<0.1 hPa (20 °C)

RTECS 

RO2885000

storage temp. 

Store at +5°C to +30°C.

solubility 

H₂O: 1 M at 20 °C, clear, colorless

form 

Crystals or Flakes

Specific Gravity

2.127

color 

White

PH

7.0-8.5 (25℃, 50mg/mL in H2O)

Water Solubility 

364 g/L (20 ºC)

Sensitive 

Hygroscopic

Merck 

14,7651

BRN 

3752576

Stability:

Stable. Incompatible with strong oxidizing agents. Protect from moisture.

InChIKey

QCPTVXCMROGZOL-UHFFFAOYSA-L

LogP

-1.193 (est)

CAS DataBase Reference

6487-48-5(CAS DataBase Reference)

EPA Substance Registry System

Ethanedioic acid, dipotassium salt, monohydrate (6487-48-5)

Safety Information

Hazard Codes 

Xn

Risk Statements 

21/22

Safety Statements 

24/25

RIDADR 

3282

WGK Germany 

1

TSCA 

Yes

HS Code 

2917 11 00

HazardClass 

6.1

PackingGroup 

III

Toxicity

LD50 orally in Rabbit: 660 mg/kg

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

Potassium oxalate monohydrate Usage And Synthesis

Description

Potassium oxalate monohydrate is the monohydrate form of potassium oxalate. It is a strong dicarboxylic acid naturally occurring in many plants and vegetables. It is produced inside the body during the metabolism of glyoxylic acid or ascorbic acid. It is used as a chelating agent, a purifying agent in the pharmaceutical industry as well as a precipitating agent in rare-earth metal processing. In textile and wood industry, it can also used as a grinding agent, a rust remover in metal treatment and a bleaching agent. Moreover, it can be used as a scale remover in automobile radiators and also used in water treatment. In addition, it can be used to determine the calcium content and other heavy metals and reducing agents inn analytic chemistry. It can also be used for the preparation of SBA-15 (nanostructured SiO2) supported catalyst.

Chemical Properties

Potassium oxalate monohydrate is odorless, effiorescent, water-soluble, colorless crystals that decompose when heated. Used in analytical chemistry and photography, and as a bleach and oxalic acid source.

Uses

Potassium oxalate monohydrate may be used in the preparation of SBA-15 (Santa Barbara Amoprhous-15)- catalyst.

General Description

Potassium oxalate monohydrate (POM) is a potassium salt of oxalic acid. Its crystal structure has been investigated by three-dimensional neutron diffraction studies.

Purification Methods

Recrystallise it from hot water. It forms various K + oxalic acid salts [e.g. potassium hydrogen oxalate KH(C2O4)—see above, and KH3(C2O4)2 which is, surprisingly, called potassium tetraoxalate—see below]. [Beilstein 2 H 513, 2 I 224, 2 II, 485, 2 III 1552, 2 IV 1823.]

Potassium oxalate monohydrate(6487-48-5)Related Product Information

• Basic Green 4
• POTASSIUM OXALATE (2:1) DIHYDRATE
• Sodium oxalate
• Potassium chloride
• Oxalic acid
• OXONIC ACID POTASSIUM SALT
• Ethyl 2-(Chlorosulfonyl)acetate
• OXALIC ACID
• Potassium Citrate
• Hyaluronic acid
• MELIBIOSE
• Potassium sorbate
• Folic acid
• Potassium iodide
• Diethyl oxalate
• Lithium sulfate monohydrate
• Cupric acetate monohydrate
• Manganese sulfate monohydrate