金红石
Titanium(IV) oxide
CAS: 13463-67-7;1317-80-2;1317-70-0;51745-87-0;52624-13-2
Molecular Formula: O2Ti
金红石 - Names and Identifiers
金红石 - Physico-chemical Properties
| Molecular Formula | O2Ti |
| Molar Mass | 79.8658 |
| Density | 4.17 g/mL at 25 °C(lit.) |
| Melting Point | 1830-3000℃ |
| Boling Point | 2900℃ |
| Water Solubility | insoluble |
| Appearance | Shape powder, color White |
| PH | <1 |
| Storage Condition | Room Temprature |
| MDL | MFCD00011269 |
| Physical and Chemical Properties | White powder. white powder with soft texture, odorless and tasteless, strong hiding power and coloring power, melting point 1560~1580 ℃. Insoluble in water, dilute inorganic acid, organic solvent, oil, slightly soluble in alkali, soluble in concentrated sulfuric acid. It turns yellow when heated and white after cooling. Rutile (R-type) has a density of 4.26g/cm3 and a refractive index of 2.72. R type titanium dioxide has good weather resistance, water resistance and not easy to yellow characteristics, but slightly poor whiteness. Anatase (Type A) has a density of 3.84g/cm3 and a refractive index of 2.55. Type a titanium dioxide light resistance is poor, not resistant to weathering, but the whiteness is better. In recent years, it has been found that nano-sized ultrafine titanium dioxide (usually 10 to 50 nm) has Semiconductor properties, and has high stability, high transparency, high activity and high dispersibility, no toxicity and color effect. |
| Use | Used in paint, ink, plastic, rubber, paper, chemical fiber and other industries;Used for welding electrode, refining titanium and manufacturing titanium dioxideTitanium dioxide (Nano) is widely used in functional ceramics, catalysts, cosmetics and photosensitive materials, such as white inorganic pigments. White pigment is the strongest one, with excellent hiding power and color fastness, suitable for opaque white products. The rutile type is particularly suitable for use in outdoor plastic products, which can give good light stability. Anatase is mainly used for indoor products, but slightly blue light, high whiteness, large hiding power, strong coloring and good dispersion. Titanium dioxide is widely used as paint, paper, rubber, plastic, enamel, glass, cosmetics, ink, water color and oil color pigment, can also be used in metallurgy, radio, ceramics, electrode |
金红石 - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| UN IDs | N/A |
| RTECS | XR2275000 |
| TSCA | Yes |
| HS Code | 28230000 |
金红石 - Upstream Downstream Industry
| Raw Materials | Polyaluminium Chloride Phosphoric acid Sulfuric acid Antimony(III) oxide Sodium hydroxide Potassium carbonate Iron Hydrochloric acid |
| Downstream Products | Potassium hexafluorotitanate |
金红石 - Reference
| Reference Show more | 1. Zheng, Yajun, et al. "Microscale flower-like magnesium oxide for highly efficient photocatalytic degradation of organic dyes in aqueous solution." RSC Advances 9.13 (2019): 7338-7348. |
金红石 - Nature
Open Data Verified Data
White amorphous powder. There are three variants of titanium dioxide found in nature: rutile is a tetragonal crystal; Anatase is a tetragonal crystal; And brookite is an orthogonal crystal. Slight Heat was yellow, strong heat was brown. Insoluble in water, hydrochloric acid or nitric acid or dilute sulfuric acid and organic solvents, soluble in concentrated sulfuric acid, hydrofluoric acid, slightly soluble in alkali and hot nitric acid. Boiling for a long time to dissolve in concentrated sulfuric acid and hydrofluoric acid. The reaction with molten sodium hydroxide produces titanate. At a high temperature, it can be reduced to a low-valent titanium compound by hydrogen, carbon, metal sodium, etc., and can react with carbon disulfide to produce titanium disulfide. The refractive index of titanium dioxide is the largest in the white pigment, the rutile type is 8. 70, and the anatase type is 2.55. Since both the anatase type and the plate titanium type titanium dioxide are converted to the rutile type at a high temperature, the melting point and the boiling point of the plate titanium type and the anatase type titanium dioxide are practically absent. Only rutile titanium dioxide has a melting point and boiling point, the melting point of rutile titanium dioxide is 1850 ℃, the melting point of air (1830±15)℃, the melting point of oxygen-rich 1879 ℃, the melting point is related to the purity of titanium dioxide. Rutile titanium dioxide has a boiling point of (3200 300)K and is slightly volatile at this high temperature.
Last Update：2024-01-02 23:10:35
金红石 - Preparation Method
Open Data Verified Data
- titanium oxysulfate was dissolved in water and filtered. An ammonia solution was added to precipitate a gruel-like precipitate, which was then filtered. It is then dissolved with oxalic acid solution, precipitated with ammonia and filtered. The obtained precipitate was dried at 170 ° C. And then calcined at 540 ° C. To obtain pure titanium dioxide. Most of them were open-pit mining. The beneficiation of titanium primary ore can be divided into three stages: pre-selection (common magnetic separation and gravity separation method), Iron selection (magnetic separation method) and titanium selection (gravity separation, magnetic separation, electric separation and flotation method); the beneficiation of Ti-Zr Placer (mainly coastal placer, followed by inland Placer) can be divided into two stages: roughing and selecting. In 1995, Zhengzhou Institute of Comprehensive Utilization of Geological and Mineral Resources adopted the processes of magnetic separation, gravity separation and acid leaching to concentrate the extra-large rutile ore in Xixia, Henan province. It has passed the trial production and all indexes are at the leading level in China.
Last Update：2022-01-01 09:03:39
金红石 - Standard
Authoritative Data Verified Data
This product is calculated as dry product, containing TK)2 should be 98.0% ~ 100.
Last Update：2024-01-02 23:10:35
金红石 - Trait
Authoritative Data Verified Data
- This product is white powder; Odorless, tasteless.
- This product is insoluble in water, hydrochloric acid, nitric acid or dilute sulfuric acid.
Last Update：2022-01-01 11:19:36
金红石 - Use
Open Data Verified Data
- used as a spectral analysis reagent, a preparation of high purity titanium Salt, a pigment, a polyethylene colorant, and an abrasive. Also used in the pharmaceutical industry, capacitor medium, high temperature alloy, high temperature resistant sponge titanium manufacturing.
- used in the production of titanium dioxide, titanium sponge, titanium alloy, artificial rutile, titanium tetrachloride, titanyl sulfate, potassium fluotitanate, aluminum titanium chloride and so on. Titanium dioxide can be made of high-grade white paint, white rubber, synthetic fiber, paint, electrode and rayon light reducing agent, plastic and high-grade paper filler, also used in telecommunications equipment, metallurgy, printing, printing and dyeing, enamel and other departments. Rutile is also the main mineral raw material for the extraction of titanium. Titanium and its alloys with high strength, low density, corrosion resistance, high temperature resistance, low temperature resistance, non-toxic and other excellent properties, and absorption of gas, superconducting and other special functions, which are widely used in aviation, chemical industry, light industry, navigation, medical, national defense and marine resources development and other fields. More than 90% of titanium minerals in the world are used to produce titanium dioxide white pigment, and this product is more and more widely used in paint, rubber, plastic, paper and other industries.
Last Update：2022-01-01 09:03:40
金红石 - Differential diagnosis
Authoritative Data Verified Data
take about 0-5g of this product, add anhydrous sodium sulfate 5g and water 10ml, mix well, add sulfuric acid 10ml, heat and boil until clear, cool, slowly add sulfuric acid solution (25-100) 30 m l, diluted with water to 100ml, shake, test as follows.
- 5ml solution was taken and several drops of hydrogen peroxide solution were added, which showed orange-red color.
- 5ml solution was taken, and several zinc particles were added. After storage for 45 minutes, the solution showed a purple blue color.
Last Update：2022-01-01 11:19:36
金红石 - Safety
Open Data Verified Data
- store in a cool, ventilated warehouse. The packaging is sealed. It is not allowed to be stored and mixed with acid articles.
- rutile mineral products shall not be mixed with foreign debris during packaging and storage. Packaging material requirements for corrosion resistance is not easy to break. Double bag packaging, the inner and outer layer of the specifications to be matched, the inner layer of plastic bags or bags (also available Kraft paper), the outer layer of woven bags. 25kg or 50kg net weight per package. When packing, the mouth of the bag should be sealed, and the mark on the bag should be firm, and the writing should be clear and not fading. Each batch of mineral products should be attached with a certificate of quality that meets the requirements of the standard. The mineral products shall be stored in different grades, not mixed, and the storage site shall be clean.
Last Update：2022-01-01 09:03:40
金红石 - Exam
Authoritative Data Verified Data
pH
take this product 5. 0g, add 50ml of water to dissolve, filter, take accurate amount of filtrate, add 0.1ml of bromothymol blue indicator solution, add hydrochloric acid titration solution (0.01m ol/l) 1 .0ml, the strain is yellow; If yellow, add sodium hydroxide titration solution (0.01mOl / L) l. 0ml, the strain is blue.
dissolved in water
take this product lO. Add 0.5g of ammonium sulfate, add 150ml of water, heat and boil for 5 minutes, cool, dilute to 200ml with water, shake, filter with double-layer quantitative filter paper, and take 100ml of continued filtrate with precision, place in an evaporating dish with a constant weight at 105 ° C., steam dry, 105X: dry to constant weight, and leave no residue. 5mg(0. 25%).
dissolved in acid
Take 5.0g of this product, add 0.5M o l/L hydrochloric acid solution 10 M l, heated in a water bath for 30 minutes, and stirred from time to time, filtered with three layers of quantitative filter paper, filter residue 0. Wash with 5m o l/L hydrochloric acid solution, combine the filtrate and washing solution, place in an evaporating dish with a constant weight of 105 ° C., evaporate to dryness, and dry to a constant weight at 105 ° C., leaving no residue exceeding 25mg(0. 5%).
barium salt
take this product 10. 0g, add hydrochloric acid 30ml, shake for 1 min, add water 1 0 0M l, heat and boil, while the heat filtration, wash the residue with water 60ml, combine the filtrate and wash, dilute to 20 0M l with water, shake well, take 10ml, add sulfuric acid solution (5. 5-60) lm l, stand for 30 minutes without producing turbidity or precipitation.
antimony salt
take 0.50g of this product, add 5g of anhydrous sodium sulfate, place in long-necked combustion flask, add 1 0 m l of water, shake, carefully add 1 0 m l of human sulfuric acid, shake, carefully heat, boil until clear, cool, add water 30 m l, slowly add human sulfuric acid 1 0 m l, mix well, cool, dilute to 1 0 m l with water, the test solution was obtained by shaking well. Take 0.2 7 4 g of potassium antimonyl tartrate, add 25% hydrochloric acid solution 20 m l to dissolve, dilute to 1 0 m l with water, shake well, take 10 .0m l, put in 1 0 0 0 m l measuring flask, add 2 0 0 m l of 25% hydrochloric acid solution, Dilute to the scale with water, shake well, take 1 0.0 m l, put in 1 0 0 m l measuring flask, add 25% hydrochloric acid solution 3 0 m l, dilute to the scale with water, the standard solution of antimony is obtained (with new preparation, equivalent to 1 ton of antimony per l m l). Take 1 0 m l of test solution, add 1 0 m l of hydrochloric acid and 1 0 m l of water each, shake well, cool to 20°C, add 1 0% sodium nitrite solution (ready for fresh preparation) 0. 1 5 m l, stand for 5 minutes, add 1% hydroxylamine hydrochloride solution 5 m l and 0.0.1% Rhodamine B solution (freshly mixed) 1 0 m l, Mix well and extract with toluene 1 0 m l for 1 min (if necessary, centrifuge for 2 min). Take 5.0 m l of antimony standard solution, add 1 0 m of hydrochloric acid, and add mixed solution (anhydrous sodium sulfate 0. 5G, add sulfuric acid 2 m l, dilute to 1 5 m l with water, shake well, then get) 1 5 m l, from "cooling to 2 0°C......" The same method is used for the same operation as the test solution. The toluene layer of the test solution should not be pink deeper than the toluene layer of the antimony standard solution (0.01%)
Iron Salt
Take 20ml of the test solution under the item "Antimony salt" and check it according to law (General rule 0807), and standard iron solution 2. Compared with the control solution made of Oml, it should not be deeper (0. 02%).
loss on drying
take this product and dry it at 105°C for 3 hours, and the weight loss shall not exceed 0831 (general rule).
ignition weight loss
take about 2g of the dried product, weigh it precisely, burn it to constant weight at about 800°C, and lose no more than 0 .5% of weight.
Heavy metals
take this product 5. O g, add hydrochloric acid 7.5ml, shake for 1 min, add water 25ml, heat and boil, filter, filter residue washed with water, combine filtrate and wash, put in 50ml measuring flask, dilute with water until the scale, shake well, take 10 m l, add ammonia test solution Dropwise until the indicator solution is neutral, add 2 m l of dilute acetic acid and dilute to 25ml with water, inspection according to law (General Principles 0821, Law 1), containing heavy metals shall not exceed 20 parts per million.
arsenic salt
take this product 0. 4G, inspection according to law (General Principles 0822 The first law), should comply with the provisions (0.0005%).
Last Update：2022-01-01 11:19:37
金红石 - Content determination
Authoritative Data Verified Data
take 0.25g of this product, place it in a quartz crucible, weigh it accurately, add 2 g of potassium sulfate, melt it with small fire, burn it to Honeycomb with large fire, cool it, add 20ml sulfuric acid 2-3 times, heat and dissolve each time, cool, transfer to the same beaker with about 100ml water, stir and cool, move to 250ml volumetric flask (if necessary, water bath heat to clear), dilute to the scale with water, shake. Add 200ml of water and 4ml of hydrogen peroxide into a 500ml Erlenmeyer flask, mix well, add 25ml of disodium EDTA titration solution (0.05mol/L), and place for 5 minutes, add 1 drop of Methyl red indicator solution, neutralize with 20% sodium hydroxide solution until the pH test paper is neutral, add 5g of urotropine to dissolve, add Xylenol Orange indicator solution lm l, use zinc titration solution (0.05mol/L). Titrate until the solution changes from orange to yellow and finally to orange-red; Also make blank test correction. Each lm l zinc titration solution (0. 05mol/L) is equivalent to 3. 995mg of T i02.
Last Update：2022-01-01 11:19:38
金红石 - Category
Authoritative Data Verified Data
pharmaceutical excipients, glidants and opacifiers.
Last Update：2022-01-01 11:19:39
金红石 - Storage
Authoritative Data Verified Data
sealed and stored in a dry place.
Last Update：2022-01-01 11:19:39
金红石 - Introduction
Open Data Unverified Data
Titanium(IV) oxide, also known as titanium dioxide, is a white inorganic compound with the chemical formula TiO2. It has high optical properties and chemical stability, and is commonly used in various applications such as pigments and sunscreens. It finds wide use in cosmetics, paints, food additives, pharmaceuticals, and materials science. Titanium dioxide is typically produced by the reaction of iron sulfate and titanium tetrachloride at high temperatures. In industry, the production technology of titanium dioxide is constantly improving, leading to higher quality products.
Properties:
- Titanium dioxide is a white solid powder with excellent covering power and optical properties, widely used in various applications.
- It exhibits high chemical stability and abrasion resistance, maintaining color stability and corrosion resistance.
- Performs well under ultraviolet light and is used as a sunscreen ingredient to form a protective film on the skin.
Uses:
- Pigments: Titanium dioxide is an important white pigment used in industries such as paints, coatings, plastics, and paper, providing excellent covering power and gloss.
Manufacturing:
- Industrial production typically involves the reaction of iron sulfate and titanium tetrachloride to produce titanium tetrachloride ions, which are then neutralized with sodium hydroxide to produce titanyl hydroxide. It is then obtained by calcining the hydroxide at high temperatures to produce titanium dioxide.
Safety:
- Titanium dioxide is considered safe for use in food and pharmaceuticals by the FDA under normal conditions.
- Inhalation of dust should be avoided during production and handling, and contact with skin and eyes should be prevented.
- Adherence to safety procedures is essential, ensuring good ventilation and wearing personal protective equipment.
Last Update：2024-04-09 19:43:38
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View History
Raw Materials for 金红石
Polyaluminium Chloride
Sulfuric acid
Antimony(III) oxide
Sodium hydroxide
Potassium carbonate
Iron
Hydrochloric acid
Sulfuric acid
Antimony(III) oxide
Sodium hydroxide
Potassium carbonate
Iron
Hydrochloric acid
Downstream Products for 金红石