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]

Exposure Assessment
Vapor Pressure

7.28E-5 mm Hg

Lethal Concentration

LC50 (rat) > 167 mg/m3/4h

Adverse Effects
Skin Sensitizer

Yes

Asthma

Yes

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: