P-Violet 19(CAS#1047-16-1)
Chemical Property:
| Molecular Formula | C20H12N2O2 |
| Molar Mass | 312.32 |
| Density | 1.5 g/cm3 |
| Melting Point | 390 °C |
| Boling Point | 568.5±50.0 °C(Predicted) |
| Flash Point | 221.3°C |
| Vapor Presure | 6.14E-13mmHg at 25°C |
| Appearance | Purple red powder |
| Color | Orange to Amber to Dark red |
| pKa | -2.96±0.20(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.702 |
| MDL | MFCD00059956 |
| Physical and Chemical Properties | Hue or color: purple, yellow, red relative density: 1.5-1.8 Bulk density/(lb/gal):12.6-14.8 melting point/℃:310->400 average particle size/μm:0.05-0.1 particle shape: Purple/Cube specific surface area/(m2/g):22-85 pH value/(10% slurry):6.5-9 oil absorption/(g/100g):40-70 hiding power: transparent diffraction curve: 
reflectance curve: |
| Use | There are 128 kinds of commercial dosage forms of the pigment. Beta-type quinacridone gives a reddish violet, with tetrachlorosulfur isatin (P.R.88) color light is similar, excellent light resistance and heat resistance stability; Used in high-grade industrial coatings, and inorganic pigments such as iron oxide red, molybdenum red and other color matching, transparent type can be used for metal decorative paint; can also be used in plastics such as PVC and PUR coloring, in polyolefin can withstand 300 °c. The light fastness of γ-type is slightly lower than that of β-type, but it has higher transparency. The γ-type of coarse particle size has excellent light resistance and is suitable for outdoor paint coloring, with P.R.122 puts out a tone close to the standard magenta, and the printed sample is light-resistant to grade 6-7 and heat-resistant to 190 ℃/10min, which is used for coloring laminated plastic films and PP puree. |
| Safety Description | 24/25 – Avoid contact with skin and eyes. |
| RTECS | VA8533500 |
| HS Code | 29339900 |
| Toxicity | LD50 oral in rat: > 20mL/kg |
Introduction
5,12-Dihydroquinoline[2,3-b]acridine-7,14-dione is a chemical compound, often abbreviated as BQD. The following is an introduction to the properties, uses, preparation methods and safety information of BQD:- BQD is a pale yellow crystal that is soluble in organic solvents such as dimethylformamide (DMF) and dichloromethane. – It is chemically stable and able to withstand higher temperatures and oxidizing conditions. – BQD is often used as an intermediate in organic synthesis and can undergo reactions such as oxidation, cyclization, reduction, etc. Usage:- BQD can also be used as an organic semiconductor material and dye molecule in materials science. Preparation method:- BQD can be synthesized by a variety of methods, and the common preparation method is to reduce quinoline and acridine-7,14-dione by sodium dihydride (or other reducing agents) to obtain BQD. Safety Information:- BQD is generally safe under normal and reasonable use. – It is not significantly acutely toxic or carcinogenic, but direct contact should still be avoided and inhalation of its dust or solution should be avoided. – Personal protective measures should be taken when using BQD, including wearing appropriate gloves and eye protection.
