Name | N,N'-Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,3-benzenedicarboxamide |
Synonyms | Nylostab S-Eed Light stabilizer 438 Polyamide Stabilizer N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)isophthalamide 1,3-Benzendicarboxamide,N,N'-Bis(2,2,6,6-Tetramethyl-4-Piperidinyl) 1,3-Benzenedicarboxamide,N,N'-bis(2,2,6,6-tetramethyl-4-piperdinyl) N,N'-Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,3-benzenedicarboxamide 1,3-Benzenedicarboxamide, N,N-bis(2,2,6,6-tetramethyl-4-piperidinyl)- N,N''-BIS(2,2,6,6-TETRAMETHYL-4-PIPERIDINYL)-1,3-BENZENEDICARBOXAMIDE |
CAS | 42774-15-2 |
EINECS | 419-710-0 |
Molecular Formula | C26H42N4O2 |
Molar Mass | 442.64 |
Density | 1.09±0.1 g/cm3(Predicted) |
Melting Point | >270°C (dec.) |
Boling Point | 605.1±55.0 °C(Predicted) |
Water Solubility | 139mg/L at 30℃ |
Solubility | Chloroform (Slightly), Methanol (Slightly, Heated) |
Vapor Presure | 0Pa at 25℃ |
Appearance | Solid |
Color | White to Off-White |
pKa | 13.67±0.60(Predicted) |
Storage Condition | under inert gas (nitrogen or Argon) at 2–8 °C |
Physical and Chemical Properties | ▼ ▲ Appearance of white crystalline powder transmittance 425nm ≥ 90% 500nm ≥ 92% solubility g/100 dimethylacetamide 100(20 ℃) acetic acid 250(20 ℃) water 0.139(30 ℃) lactam 5(75 ℃) ash content ≤ 0.1% effective component ≥ 98% |
Hazard Symbols | Xn - Harmful |
Risk Codes | R22 - Harmful if swallowed R36 - Irritating to the eyes |
Safety Description | S22 - Do not breathe dust. S25 - Avoid contact with eyes. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
LogP | 1.12 at 20℃ |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Features & uses | (1) to improve the stability of nylon melt, thereby improving the processability of nylon, reducing fiber breakage rate, improve product quality. (2) it has a long-term stabilizing effect on light, heat, oxidation, etc., and can improve the dispersibility of fillers and pigments in nylon. (3) to improve the color strength of the pigment, improve the stability of the pigment, and enhance the dyeability of the nylon fiber. |
precautions | avoid sunlight, humidity, high temperature. |