127-95-7 Usage
Description
Potassium binoxalate, also known as potassium hydrogen oxalate, is a white, odorless, crystalline solid with the chemical formula KHC2O4 or K+·HO2C-CO2-. It is a common salt of the hydrogenoxalate anion, obtained by reacting potassium hydroxide with oxalic acid in a 1:1 mole ratio. Potassium binoxalate is hygroscopic and soluble in water, with its solutions being basic. It occurs naturally in some plants, such as sorrel, and is used commercially in various applications.
Uses
Used in Cleaning Industry:
Potassium binoxalate is used as a cleaning agent for removing ink stains and scouring metals. Its ability to dissolve in water and form basic solutions makes it effective in breaking down and removing unwanted stains and residues from various surfaces.
Used in Woodworking Industry:
In the woodworking industry, potassium binoxalate is utilized as a cleaning agent for cleaning wood. Its solvent properties help in removing dirt, grime, and other contaminants from wood surfaces, preparing them for further processing or finishing.
Used in Photography:
Potassium binoxalate plays a role in the photography industry as a laboratory reagent. It is involved in the development and processing of photographic films and prints, contributing to the overall quality and appearance of the final product.
Used in Marble Grinding:
In the marble grinding industry, potassium binoxalate is employed as a mordant. It helps in fixing dyes and pigments to the marble surface, enhancing the color and durability of the finished product.
Used in Textile Industry:
Although not explicitly mentioned in the provided materials, potassium binoxalate is also used in the textile industry as a mordant for dyeing and printing fabrics. Its ability to form strong bonds with fibers allows for the creation of vibrant, long-lasting colors on textiles.
History
Potassium acid oxalate, KHC2O4, exists as a monohydrate. It is of historical interest because it is the salt of sorrel found in vegetation and the first oxalate isolated.
Air & Water Reactions
Hygroscopic. Gives basic solution, below 50°C dissolves in water and reacts to form the much less soluble potassium tetraoxalate, which separates out.
Reactivity Profile
Salts, basic, such as Potassium binoxalate, are generally soluble in water. The resulting solutions contain moderate concentrations of hydroxide ions and have pH's greater than 7.0. They react as bases to neutralize acids. These neutralizations generate heat, but less or far less than is generated by neutralization of the bases in reactivity group 10 (Bases) and the neutralization of amines. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible.
Hazard
Toxic by ingestion.
Health Hazard
Inhalation of dust causes irritation of nose and throat. Ingestion causes burning pain in throat, esophagus, and stomach; exposed areas of mucous membrane turn white; vomiting, severe purging, weak pulse, and cardiovascular collapse; if death is delayed, neuromuscular symptoms develop. Contact with dust irritates eyes and may cause mild irritation of skin.
Flammability and Explosibility
Nonflammable
Toxicology
Potassium hydrogen oxalate is strongly irritating to eyes, mucoses and gastrointestinal tract. It may cause cardiac failure and death .
Safety Profile
Moderately toxic to humans by ingestion. Human systemic effects by ingestion and intravenous routes: general anesthetic, somnolence, fluid intake, blood pressure increase or decrease, esophagus changes,nausea or vomiting, and urine volume decrease or anu
Purification Methods
Crystallise it from H2O by dissolving 20g in 100mL H2O at 60o containing 4g of potassium oxalate, filtering and allowing to cool to 25o. The crystals, after washing three or four times with water, are allowed to dry in air. [Beilstein 2 III 1552.]
Check Digit Verification of cas no
The CAS Registry Mumber 127-95-7 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 5 respectively.
Calculate Digit Verification of CAS Registry Number 127-95:
(5*1)+(4*2)+(3*7)+(2*9)+(1*5)=57
57 % 10 = 7
So 127-95-7 is a valid CAS Registry Number.
InChI:InChI=1/C2H2O4.2K/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2
