127-96-8 Usage
Description
Potassium trihydrogen dioxalate, also known as potassium oxalate, is a colorless or white crystalline solid with a monoclinic structure. It has a density of 2.13 g/cm3 and loses its water at about 160°C, converting to carbonate when ignited. It effloresces in warm dry air and is soluble in water, with 33 g/100 mL at 20°C. A 0.05m solution of K2C2O4·2H2O has a pH of 1.679.
Uses
Used in Cleaning and Bleaching Industry:
Potassium trihydrogen dioxalate is used as a cleaning and bleaching agent for straw due to its ability to remove stains and whiten the material.
Used in Photography:
In the photography industry, potassium trihydrogen dioxalate is utilized in the development process, contributing to the formation of images on photographic film or paper.
Used in Clinical Tests:
Potassium trihydrogen dioxalate serves as a secondary pH standard in clinical tests, ensuring the accuracy of pH measurements in various medical and diagnostic applications.
Used in Analytical Chemistry:
In analytical chemistry, potassium trihydrogen dioxalate is employed for the standardization of many oxidizing agents in titrimetric analysis, which is crucial for the precise determination of the concentration of these agents in various chemical reactions.
Used in the Production of Potassium Oxalate:
Potassium trihydrogen dioxalate is also used in the production of potassium oxalate, which can be found in the leaves and roots of certain plants and has various applications in different industries.
Preparation
Potassium oxalate can be preparaed by heating potassium formate at 360°C:2HCOOK →K2C2O4+ H2The salt is obtained as its monohydrate by neutralization of oxalic acid with a dilute aqueous solution of potassium hydroxide followed by crystallization:H2C2O4+ 2KOH →K2C2O4+ 2H2O.
Flammability and Explosibility
Nonflammable
Purification Methods
Crystallise it from water below 50o. Dry it below 60o at 760mm. [See potassium oxalate above, Beilstein 2 IV 1823.]
Check Digit Verification of cas no
The CAS Registry Mumber 127-96-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,2 and 7 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 127-96:
(5*1)+(4*2)+(3*7)+(2*9)+(1*6)=58
58 % 10 = 8
So 127-96-8 is a valid CAS Registry Number.
InChI:InChI=1/2C2H2O4.K/c2*3-1(4)2(5)6;/h2*(H,3,4)(H,5,6);
