Urea formaldehyde
Agent Name
Urea formaldehyde
CAS Number
9011-05-6
Formula
(C-H4-N2-O.C-H2-O)x
Major Category
Plastics & Rubber
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]
Category
Formaldehyde Resins
Description
Amorphous powder; [HSDB]
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] Used in leather tanning; [PMID 21938525]
Comments
Amino resins are skin sensitizers. [LaDou (2nd ed.), p. 522-3] Occupational asthma reported in workers manufacturing plastic resins and foams; [Malo]
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]
Biomedical References
Exposure Assessment
Vapor Pressure
7.28E-05 mm Hg
Lethal Concentration
LC50 (rat) > 167 mg/m3/4h
Adverse Effects
Skin Sensitizer
Yes
Asthma
Yes
Diseases, Processes, and Activities Linked to This Agent
Diseases
Occupational diseases associated with exposure to this agent:
Processes
Industrial Processes with risk of exposure: