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| Synonyms:PTO Potassium oxotitanium oxalate Potassium oxo-bis(oxalato)titanate(IV) Dipotassium oxotitanium bis(oxalate) dihydrate Bis(oxalato)oxotitanium(IV) dipotassium salt Potassium titanium oxide oxalate dihydrate Molecular Formula:C4O9Ti.2K Molecular Weight: 390.12 HS Code: 2917119000 Grade: Industrial grade 90%,99% Hazard Class:General Cargo | |||||||||
14481-26-6
bosschem
14481-26-6
Potassium titanium oxalate, also known as potassium oxalate, is a potassium salt complex formed by titanium and oxalic acid. It belongs to organotitanium compounds, and its chemical formula is usually written as:
K2TiO(C2O4)2·2H2O (C4H4K2O11Ti, CAS No.: 14481-26-6, EINECS No.: 238-475-3, molecular weight approx. 354.19)
It is a white or off-white crystalline powder at room temperature, soluble in water, insoluble in ethanol, and its aqueous solution is acidic. Potassium titanium oxalate is prepared by complexing oxalic acid with titanium salt in the presence of potassium salt, and is a stable titanium oxalate complex.
From a molecular structure perspective, potassium titanium oxalate contains a titanium oxide group (Ti= O) and two oxalate ions (C2O4²-), with titanium forming a stable five-membered ring chelate structure with the oxalate ions. This structure allows it to slowly dissociate into active titanium species in aqueous solution, enabling it to bind with leather collagen for tanning and to coordinate with metal surfaces and dyes. In the leather industry, leather tanned with it is white, soft, full, elastic, and resistant to light, washing, and abrasion. The raw hide absorbs the tanning liquor completely, making it an environmentally friendly alternative to chrome tanning agents. This forms the basis for its large-scale application in the leather, surface treatment, and textile industries.
Chemically, potassium titanium oxalate is stable in air, soluble in water to form an acidic solution, and decomposes upon heating; the titanium in its aqueous solution exhibits complexing and flocculating activity. It should be stored in a dry, sealed container.
Industrial-grade potassium titanium oxalate refers to products primarily intended for industrial production, with a main content generally exceeding 98%. Compared to reagent-grade and other specifications, industrial-grade products place greater emphasis on the following indicators:
Main content
Purity directly affects the tanning and processing effects and the quality of downstream products. Industrial grade generally requires a main content of over 98%.
Titanium content
Titanium content is a core indicator for measuring product quality, directly affecting the tanning and processing results, and must meet specifications.
Moisture
Excessive moisture content affects measurement accuracy and storage stability, and must be kept at a low level.
Water-insoluble matter
Water-insoluble matter can affect the uniformity of tanning liquor preparation and needs to be controlled at a low level.
Solubility
It is required to dissolve quickly in water and produce a clear solution to ensure the stability of the tanning liquor and the treatment solution.
Potassium titanium oxalate is the core raw material of environmentally friendly titanium tanning agents. It is used in leather tanning, and the tanned leather is white, soft and full, elastic, and resistant to light, washing and abrasion. The bare leather absorbs the tanning liquor completely. It can be used as an environmentally friendly alternative to chromium tanning agents and is applied in the production of shoe upper leather, clothing leather and bag leather.
Potassium titanium oxalate is used as a metal surface treatment agent. After treatment, the metal surface is smooth, the coating is firm and bright. It is widely used in the pre-treatment of metal shells of automobiles, home appliances, building hardware and other products to help improve the coating adhesion and appearance.
Potassium titanium oxalate is used as a mordant and whitening agent in printing and dyeing. It helps dyes adhere to fibers, improves color fastness, and enhances color. It is applied to the dyeing and whitening treatment of textiles such as cotton and leather.
Potassium titanium oxalate is used as a surface treatment agent for marble and other stones to help whiten and brighten the stone surface, and is applied in the processing and maintenance of building stone.
Potassium titanium oxalate and its derivatives can be used as catalyst components in some chemical reactions, and are applied to organic synthesis and fine chemical reactions due to the coordination activity of titanium.
Potassium titanate is an important precursor for the synthesis of electronic ceramic powders such as barium titanate and strontium titanate. Barium titanate is used to manufacture electronic components such as MLCC capacitors, PTC thermistors and sensors, and is an important raw material in the electronic materials industry chain.
Its applications extend to areas such as water treatment flocculation, analytical reagents, and metal rust prevention, and its scope continues to expand.
Potassium titanium oxalate is a white crystalline powder of titanium oxalate complex. It is water-soluble and acidic. Through its stable complexation and controlled release of titanium, it has become an important raw material for environmentally friendly titanium tanning agents, metal surface treatment agents, and electronic ceramic precursors. In daily life, we indirectly come into contact with it through leather products, metal shells of home appliances and automobiles, textile dyeing products, marble building materials, electronic ceramic devices, and testing laboratories. In industry, industrial-grade potassium titanium oxalate is widely used as a core titanium tanning agent in leather tanning, a pretreatment agent for metal surface painting, a mordant and whitening agent in textile printing and dyeing, a marble surface treatment agent, a catalyst, and a precursor for barium titanate electronic ceramics. It is an important organic titanium compound connecting "daily use" with "leather, surface treatment, and electronic materials."
