Molecular Formula | C6H6N2O |
Molar Mass | 122.12 |
Density | 1.2236 (rough estimate) |
Melting Point | 131-133°C |
Boling Point | 227.52°C (rough estimate) |
Flash Point | 110°C |
Water Solubility | 10 g/L (20 ºC) |
Solubility | 10g/l |
Vapor Presure | <0.01 hPa (50 °C) |
Appearance | Solid |
Color | White to Off-White |
BRN | 2079 |
pKa | pK1:4.73(+1);pK2:10.03(0) (25°C) |
PH | 6.3 (10g/l, H2O, 20℃) |
Storage Condition | Store below +30°C. |
Refractive Index | 1.5350 (estimate) |
MDL | MFCD00006446 |
Physical and Chemical Properties | Crystallization (water). Melting point 131 °c. |
Hazard Symbols | Xn - Harmful |
Risk Codes | R20/22 - Harmful by inhalation and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection |
WGK Germany | 3 |
RTECS | NR9410000 |
HS Code | 29333999 |
Toxicity | LD50 orally in Rabbit: 655 mg/kg |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
Use | an intermediate of double phosphorus. |
production method | 4-pyridinecarboxaldehyde is produced by air oxidation of 4-picoline, this product was then obtained by oximation with hydroxylamine sulfate. |