| Agent Name |
Urea formaldehyde |
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| CAS Number |
9011-05-6 |
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| Formula |
(C-H4-N2-O.C-H2-O)x |
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| Major Category |
Plastics & Rubber |
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| Synonyms |
Formaldehyde, urea polymer; Gabrite; Hygromull; KM 2 (Polymer); Karbamol; Karbamol B/M; Kauresin K244; Kaurit 285 FL; Kaurit 420; PR 703-78; Pianizol; Piatherm; Piatherm D; Plastopal BT; Plyamine HD 1129A; Plyamine P 364BL; Poly(methi(bis(hydroxymethyl))ureylene)amer; Polynoxylin; Ponoxylan; Resamin 155F; Resamin HW 505; Resina X; S-Resin AER 20; Uformite 700; Uformite F 240N; Uloid 100; Uloid 22; [ChemIDplus] |
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| Category |
Formaldehyde Resins |
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| Description |
Amorphous powder; [HSDB] |
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| Sources/Uses |
Amino resins are thermosetting plastics formed from the reaction of formaldehyde and an amino group, usually urea or melamine. They are used as bonding agents in plywood and particle board and wrinkle-resistance agents in textiles. They are also molded for electrical devices and various commercial and home applications. [LaDou (2nd ed.), p. 522-3] Urea-formaldehyde resins are used in hot-box and no-bake systems for coremaking in foundries. [Burgess, p. 123-126] |
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| Comments |
Amino resins are skin sensitizers. [LaDou (2nd ed.), p. 522-3] Occupational asthma reported in workers manufacturing plastic resins and foams; [Malo] |
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| Restricted |
Urea-formaldehyde foam was banned in home insulation in 1982 because the release of formaldehyde was an indoor air hazard. [LaDou (2nd ed.), p. 522] |
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| Exposure Assessment |
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| Skin Designation (ACGIH) |
Not evaluated |
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| Vapor Pressure |
7.28 x 10 -05 mm Hg |
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| Lethal Concentration |
LC50 (rats) > 167 mg/m3/4h |
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| Adverse Effects |
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| Asthma |
Yes |
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| Skin Sensitizer |
Yes |
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| Links to Other NLM Databases |
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| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: POLYNOXYLIN
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