Yes, for product 8.08264, the CAS Number 26471-62-5 refers to Toluene Diisocyanate (TDI), which is a mixture of 70-90% Tolylene-2,4-diisocyanate and 10-30% Tolylene-2,6-diisocyanat. The exact concentration of each is listed on the lot-specific Certificate of Analysis:
https://www.sigmaaldrich.com/product/mm/808264#product-documentation
8.08264
Toluylene diisocyanate
(mixture of isomeres) for synthesis
Sinónimos:
Toluylene diisocyanate, 4-Methyl-m-phenylene diisocyanate, TDI
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Fórmula lineal:
(NCO)2C6H3CH3
Número CAS:
Peso molecular:
174.16
MDL number:
UNSPSC Code:
12352118
EC Index Number:
247-722-4
NACRES:
NA.22
Form:
liquid
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Servicio técnico
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Permítanos ayudarlevapor pressure
0.03 hPa ( 20 °C)
Quality Segment
form
liquid
autoignition temp.
620 °C
potency
4130 mg/kg LD50, oral (Rat), >12200 mg/kg LD50, skin (Rabbit)
expl. lim.
0.9-9.5 % (v/v)
bp
247 °C/1013 hPa
mp
12-14 °C
transition temp
flash point 132 °C
density
1.22 g/cm3 at 20 °C
storage temp.
2-30°C
SMILES string
N(=C=O)c1c(ccc(c1)N=C=O)C
InChI
1S/C9H6N2O2/c1-7-2-3-8(10-5-12)4-9(7)11-6-13/h2-4H,1H3
InChI key
DVKJHBMWWAPEIU-UHFFFAOYSA-N
Application
- Preparation and properties of toluene-diisocyanate-trimer-modified epoxy resin: Discusses the enhancement of epoxy resin properties through the self-polymerization of TDI, aiming to improve performance in industrial applications (X Zhang, L Qiao, X Lu, L Jiang, T Cao, 2019).
- A simple method for the quantification of free isocyanates on the surface of cellulose nanocrystals: This research focuses on the carbamation of cellulose using TDI, which is critical for the modification and enhancement of nanocellulose surfaces for various applications (H Abushammala, 2019).
- Fluorescent linear polyurea based on toluene diisocyanate: Reports the preparation of a TDI-based polyurea that exhibits broad emission spectra, suggesting potential uses in sensor applications and material science (H Cao, B Li, X Jiang, X Zhu, XZ Kong, 2020).
Analysis Note
Assay isomers (GC, area%): ≥ 98.0 % (a/a)
Assay Toluylene-2,6-diisocyanate (NMR): 10.0 - 30.0 % (a/a)
Assay Toluylene-2,4-diisocyanate (NMR): 70.0 - 90.0 % (a/a)
Density (d 20 °C/ 4 °C): 1.218 - 1.222
Identity (IR): passes test
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.
Assay Toluylene-2,6-diisocyanate (NMR): 10.0 - 30.0 % (a/a)
Assay Toluylene-2,4-diisocyanate (NMR): 70.0 - 90.0 % (a/a)
Density (d 20 °C/ 4 °C): 1.218 - 1.222
Identity (IR): passes test
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.
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Este artículo | |||
|---|---|---|---|
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| mp 12-14 °C | mp 10 °C | mp -67 °C | mp -60 °C |
| storage temp. 2-30°C | storage temp. 2-30°C | storage temp. 2-30°C | storage temp. 2-30°C |
| density 1.22 g/cm3 at 20 °C | density 1.239 g/cm3 at 20 °C | density 1.05 g/cm3 at 25 °C | density 1.06 g/cm3 at 20 °C |
| bp 247 °C/1013 hPa | bp 196 °C/7 hPa | bp 255 °C/1013 hPa | bp 158-159 °C/13 hPa |
| form liquid | form liquid | form liquid | form liquid |
signalword
Danger
target_organs
Respiratory system
wgk
WGK 2
flash_point_f
269.6 °F - closed cup
flash_point_c
132 °C - closed cup
Hazard Classifications
Acute Tox. 1 Inhalation - Aquatic Chronic 3 - Carc. 2 - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
Clase de almacenamiento
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
Certificados de análisis (COA)
Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»
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"CAS Number: 26471-62-5" Is this mixture of Tolylene-2,4-diisocyanate (80%) and Tolylene-2,6-diisocyanate (20%)?
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