Pigment White 14
Bismuth Oxychloride
CAS: 7787-59-9
Molecular Formula: BiClO
Pigment White 14 - Names and Identifiers
| Name | Bismuth Oxychloride |
| Synonyms | biju 77163 Bi-Flair PEARL WHITE Blanc de Perle Pigment White 14 Chloride Crystals Liquid Mirror [TA] Biluna Bismuth Oxy trichlorobismuthane Bismuth subchloride Bismuth Oxychloride chloro(oxo)bismuthane Basic bismuth chloride BISMUTH (LLL) OXYCHLORIDE bismuth(III) oxide chloride Bismuth(III) chloride oxide oxobismuthanyl hydrochloride BISMUTHOXYCHLORIDE,POWDER,PURIFIED |
| CAS | 7787-59-9 |
| EINECS | 232-122-7 |
| InChI | InChI=1/Bi.ClH.O/h;1H;/q+1;;/p-1/rBiClO/c2-1-3 |
| InChIKey | GLQBXSIPUULYOG-UHFFFAOYSA-M |
Pigment White 14 - Physico-chemical Properties
| Molecular Formula | BiClO |
| Molar Mass | 260.43 |
| Density | 7.72 g/mL at 25 °C (lit.) |
| Melting Point | melts at low red heat [MER06] |
| Water Solubility | Soluble in HCl, HNO3. Insoluble in water, alcohol. |
| Solubility | H2O: insoluble(lit.) |
| Appearance | Powder |
| Specific Gravity | 7.72 |
| Color | Very pale brown |
| Solubility Product Constant(Ksp) | pKsp: 30.75 |
| Merck | 14,1263 |
| Storage Condition | Room Temprature |
| Refractive Index | 2.15 |
| MDL | MFCD00010895 |
| Use | Pearlescent glaze with whitening, colored glaze seasoning, plastic additives, paint color |
Pigment White 14 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - 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. |
| WGK Germany | 2 |
| RTECS | EB2700000 |
| TSCA | Yes |
| HS Code | 28274990 |
Pigment White 14 - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | bismuth oxychloride, also known as basic bismuth chloride, is a white crystalline powder, soluble in acid, insoluble in water. Red Heat will decompose. Used as astringents, preservatives, pigments. It is also used for manufacturing flours, artificial beads, etc. It is derived from the interaction of bismuth dichloride with water. |
| Crystal preparation | A bismuth oxychloride crystal, which is a regular quadrilateral sheet crystal with controllable size, the size range was 8-20 μm. The preparation method is as follows: 25 mL of concentrated hydrochloric acid was added to 1.2 L of deionized water, stirred and heated to 65 °c, and then 0.38g of surfactant AEO9 was added dropwise, A bismuth salt solution (bismuth nitrate and hydrochloric acid in a ratio of 1: 0.1) and a 1.0 NaOH solution were added dropwise to the system at a rate of 20%/min. After 30 minutes of addition, the dropping rate was increased to 0.2/min. After 120 minutes of dropwise addition, the dropping of the bismuth salt solution was stopped, the addition of NaOH was continued to pH 10, and heating and stirring were stopped. After cooling to room temperature, the solution was allowed to stand until the supernatant was removed after stratification. BiOCl crystals were obtained after washing of the obtained solid with deionized water. The obtained product exhibited tetragonal plate-like crystals with a particle size of 12-14 μm by microscopic observation. |
| Use | for whitening of pearlescent glaze, colored glaze dressing, plastic additives, paint color blending, etc whitening of pearlescent glaze, glaze dressing, plastic additives, paint color blending |
| production method | 1. Bismuth trioxide 3G was dissolved in 1.05 of dilute hydrochloric acid (relative density) and heated to boil. If 2.5L of boiling water is added thereto, a colorless precipitate is formed. The resulting bismuth oxychloride is dissolved by heating again, and then the solution is cooled to precipitate colorless crystals of bismuth oxychloride. The crystals were separated by Suction filtration, initially washed with hydrochloric acid-containing water, then washed with water and dried at 130 °c. In addition to the above method, bismuth oxychloride can also be obtained by hydrolyzing an aqueous hydrochloric acid solution of bismuth trichloride. 2. Dissolve 3g of bismuth trioxide in 50ml of hydrobromic acid (relative density 1.38) and heat to boiling. Dilute with 1.5 to boiling water and boil until the initially formed precipitate is dissolved. BiOBr was precipitated after cooling. This was washed with dilute hydrobromic acid and then with water. 3. The BiOI is precipitated by shaking BiI3 with the dilute KOH solution. It was suction filtered, washed and dried. 4.20g of bismuth nitrate was dissolved in 30g of glacial acetic acid and poured into a cold solution of 400ml of water containing 7g of Ki and 10g of sodium acetate with stirring. When the precipitate became brick red, the precipitate was filtered off, washed, and dried. 5. Dissolve 1.2g of bismuth trioxide in 40ml of hydroiodic acid (relative density) and dilute with 6L of water. Upon heating on a water bath, the BiOI was then crystallized out. |
Last Update：2024-04-09 21:04:16
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