POTASSIUM TITANIUM OXIDE
Potassium titanate
CAS: 12030-97-6
Molecular Formula: K2O3Ti
POTASSIUM TITANIUM OXIDE - Names and Identifiers
| Name | Potassium titanate |
| Synonyms | PKT dipotassium oxygen(-2) anion POTASSIUM TITANATE Potassium titanate Titanate,dipotassium titanium(+4) cation POTASSIUM TITANIUM OXIDE potassiumtitanatewhisker titanate(tio32-),dipotassium dipotassium titanium trioxide Titanic acid tetrapotassium salt tetrapotassium tetraoxidotitanium |
| CAS | 12030-97-6 |
| EINECS | 234-748-6 |
| InChI | InChI=1/4K.4O.Ti/q4*+1;4*-1;/r4K.O4Ti/c;;;;1-5(2,3)4/q4*+1;-4 |
POTASSIUM TITANIUM OXIDE - Physico-chemical Properties
| Molecular Formula | K2O3Ti |
| Molar Mass | 174.06 |
| Density | 3.100 |
| Melting Point | 1615°C |
| Water Solubility | hydrolyzes in H2O to give a strongly alkaline solution [HAW93] |
| Appearance | Powder |
| Storage Condition | Room Temprature |
| MDL | MFCD00058803 |
| Physical and Chemical Properties | Potassium titanate is a white solid with a relative density of 3.1 and a melting point of 1515 ℃, which reacts with water to form a strong alkaline solution. |
| Use | Can be widely used in low hydrogen electrode, cross-straight dual-purpose electrode and stainless steel electrode |
POTASSIUM TITANIUM OXIDE - Risk and Safety
| Safety Description | 22 - Do not breathe dust. |
| WGK Germany | 3 |
| TSCA | Yes |
POTASSIUM TITANIUM OXIDE - Nature
Open Data Verified Data
potassium titanate can be expressed as K2 0.n tioz, wherein it is represented as − 1,2,4,6,8. n-2,4 for the layered structure; n-6,8 for the tunnel structure. Potassium hexatitanate is a white or yellowish needle-like crystal. Relative density 3.3; Melting point 1370. The fiber diameter is 0. 1~1.5um, and the fiber length is IO ~ loomem. Potassium hexatitanate is a tunnel-like structure in which TiOs octahedrons are linked by coplanar and coplanar edges. It is because of this tunnel-like structure that some special properties of potassium hexatitanate are determined. The thermal conductivity of potassium hexatitanate whisker is smaller than that of potassium hexatitanate whisker. 0894W/(m-K) (35 ℃), 0.017W/(m.K) (800 ℃), and has a negative temperature coefficient (the higher the temperature, the lower the thermal conductivity). Excellent thermal insulation, high infrared reflectivity, wear resistance and chemical stability, and non-toxic harmless, is an ideal asbestos substitute material. The asbestos-based fiber friction material is subjected to aging (ashing) at 190 ° C., while the friction material using potassium hexatitanate whiskers is not subjected to aging at 350 ° C. Fig.
Last Update：2024-01-02 23:10:35
POTASSIUM TITANIUM OXIDE - Preparation Method
Open Data Verified Data
using potassium carbonate and titanium dioxide as raw materials and potassium molybdate or Potassium tungstate as a flux, the raw materials were mixed and melted, and crystals were precipitated and grown from the formed supersaturated solution to obtain potassium titanate whiskers. Most of the commonly used n-6 potassium titanate whiskers are obtained by flux method. Alternatively, potassium carbonate and titanium dioxide are used as raw materials, and the mixture thereof is melted at a high temperature of 600 to 1200 ° C. For solid phase reaction, and then post-treated to obtain potassium titanate whiskers. Potassium titanate whiskers may be obtained by subjecting an aqueous solution of potassium carbonate and potassium hydroxide to a hydrothermal reaction under high pressure with titanium dioxide to grow crystals.
Last Update：2022-01-01 09:06:08
POTASSIUM TITANIUM OXIDE - Use
Open Data Verified Data
potassium titanate whisker, developed by NASA, is a material with excellent thermal insulation, wear resistance and impact resistance. Usually potassium tetratitanate whisker can be used to treat heavy metal ions in wastewater; Six potassium titanate whisker and eight potassium titanate whisker is used to seal the friction material, plastic, light metal, etc, special anti-corrosion coatings and energy-saving refractories and other fields. Potassium hexatitanate whisker as a friction material compared with asbestos, friction decreased by about 50%, the amount of friction decreased by about 32%. Its excellent mechanical properties, so that its wide range of applications. Some special materials that need to have resistance to friction can also be used, such as the use of the clutch and brake device of the car, which can prolong the service life of the clutch and brake device. After the surface of the potassium titanate is subjected to a conductive treatment, a conductive material may be used, or a composite material may be formed with plastic to produce a conductive composite. Its high-temperature sound absorption performance can reduce the impact of strong noise pollution of mechanical equipment.
Last Update：2022-01-01 09:06:09
POTASSIUM TITANIUM OXIDE - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | electrode industry as welding flux. used as analytical reagent used for low hydrogen electrode, straight electrode and stainless steel electrode can be used as insulation material, electrical insulation material, catalyst carrier, filter material. As a friction material, compared with asbestos, the friction force is reduced by about 50%, and the amount of wear is reduced by about 32%. It is suitable for friction materials such as brakes and clutches. After conducting conductivity treatment with Sb/ SnO2 on the surface of potassium titanate, it can be used as a conductive material or made into a conductive composite material with plastic. It can also be used as ion exchange material and adsorbent. |
| production method | sintering method uses potassium carbonate and titanium dioxide as raw materials for mixing, and the mixture is subjected to solid phase reaction at a high temperature of 600~1200 ℃ to generate potassium titanate whiskers. The raw materials potassium carbonate and titanium dioxide are melted at 1200~1500 ℃ by melting method, and then crystallized by cooling to obtain potassium titanate whiskers. The flux method uses potassium carbonate and titanium dioxide as raw materials, and uses potassium molybdate or potassium tungstate as a flux to mix and melt with the raw materials, precipitate crystals from the supersaturated solution formed, and grow to obtain potassium titanate whiskers. The melt method melts potassium carbonate and titanium dioxide to produce K2Ti2O5 fiber aggregates, and after post-treatment, fibrous potassium hexatitanate whiskers are obtained. The hydrothermal method uses potassium carbonate or potassium hydroxide as raw materials, and the aqueous solution is subjected to a hydrothermal synthesis reaction with titanium dioxide under high pressure to make the crystals grow to obtain potassium titanate whiskers. Most of the commonly used n = 6 potassium titanate whiskers are obtained by the flux method. Potassium dititanate whiskers can also be synthesized from potassium tetratitanate with a layered structure of n = 4. the solid phase method uses titanium dioxide and potassium carbonate as raw materials to prepare potassium titanate: equimolar titanium dioxide and potassium carbonate are fully mixed and ground, then put into a heating furnace, calcined at 1000~1200 ℃, and finally crushed and ground to obtain the product. The liquid phase method uses hydrated titanium dioxide and potassium hydroxide as raw materials to prepare potassium titanate: hydrated titanium dioxide and potassium hydroxide are fully mixed, and then heated to 160~170 ℃ to react to obtain potassium titanate precipitation, which is filtered, separated and dried to obtain the product. Its |
Last Update：2024-04-10 22:29:15
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