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HDI dimer
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Home
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Hexamethylene diisocyanate dimer CAS # 23501-81-7
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Molecular weight
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336.39
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Isocyanate, %
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21.8 |
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Equivalent weight
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183 |
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Toxicity/Safety
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See MSDS of supplier |
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Properties
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TYPICAL PROPERTIES
| Solids, wt. % |
100 |
| NCO content, % |
21.1-22.5 |
Viscosity @ 23°C, mPa s |
90-250 |
| Color, HAZEN |
80 maximum |
| Equivalent wt., avg. (as supplied) |
193 |
| Specific gravity @ 20°C |
1.14 |
| Weight/gallon, lb. @ 25°C |
9.5 |
| Free HDI monomer,% (based on solids) |
0.5 maximum |
| Flash point (Setaflash)
°C (°F) |
185 (365 ) |
Data from Bayer and Lyondell
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| Regulatory |
Inventory |
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| CAS REGISTRY NUMBER |
# 23501-81-7, |
NAME : 1,3-Diazetidine-2,4-dione, 1,3-bis(6-isocyanatohexyl)- |
| TSCA |
USA |
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Yes |
| DSL |
Canada |
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Yes |
| EINECS |
Europe |
EINECS No. 245-699-5 |
Yes |
| ENCS |
Japan |
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Yes |
| ECL |
Korea |
ECL Serial No. KE-10911 |
Yes |
| AICS |
Australia |
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Yes |
| The
fact that a compound is not listed under a specific CAS # in a
countries inventory does not mean this compound cannot be used,
it can be an exempt compound or polymer which does not require
listing, or it can be listed in a different category. Ask your
supplier. |
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| Other names: |
2,4-dioxo-1,3-diazetidine-1,3-bis(hexamethylene) diisocyanate
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2,4-Dioxo-1,3-diazetidin-1,3-bis(hexamethylen)diisocyanat,
1,3-Bis(6-isocyanatohexyl)-1,3-diazetidine-2,4-dione
1,3-Bis(6-isocyanatohexyl)-2,4-uretedione
Hexamethylene diisocyanate cyclic dimer
Hexamethylene diisocyanate dimer
Isocyanic acid, (2,4-dioxo-1,3-uretidinediyl) bis(hexamethylene) ester
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