 |
Chemical Sampling Information |
|
| N-Nitrosodiethanolamine |
|
General Description
Synonyms: NDELA; DELNA; 2,2'-Iminodi-N-nitrosoethanol; bis(beta-Hydroxyethyl)nitrosamine; Nitrosoiminodiethanol; 2,2'-(Nitrosoimino) bis[ethanol]; N-Nitrosobis(2-hydroxyethyl)amine; NCI-C55583; Diethylamine, 2,2'-Dihydroxy-N-nitroso; Diethanolnitrosamine
OSHA IMIS Code Number: 0907
Chemical Abstracts Service (CAS) Registry Number: 1116-54-7
NIOSH, Registry of Toxic Effects (RTECS) Identification Number: KL9550000
Chemical Description and Physical Properties: yellow, viscous oil
molecular formula: C4H10N2O3
molecular weight: 134.1
boiling point: 114°C
Health Factors
National Toxicology Program (NTP) carcinogenic classification: Reasonably Anticipated to be Human Carcinogen
International Agency for Research on Cancer (IARC) carcinogenic classification: Group 2B, Possibly carcinogenic to humans
Environmental Protection Agency (EPA) carcinogenic classification: Group B2, Probable human carcinogen.
Potential symptoms: Irritation of eyes, skin, respiratory tract; liver damage; [potential occupational carcinogen]
Health Effects: Known animal and suspected human carcinogen (liver, esophagus, lung) (HE2); Suspect teratogen (HE5)
Affected organs: Liver, esophagus, stomach (in animals)
Notes:
- N-Nitrosodiethanolamine (NDELA) is an OSHA Select Carcinogen without a PEL.
- A study of the urinary excretion of NDELA by workers exposed to metal-working fluids (MWF) reported post-shift concentrations about 100-fold greater in urine from those working with nitrite-formulated MWF than from those working with “nitrite-fee” MWF.
- Metal workers exposed to ~1 µg/m3 NDELA were reported to have about double the DNA single strand breaks in their white blood cells as those exposed to <0.05 µg/m3.
- The genotoxicity of NDELA may involve the production of active metabolites that react with DNA to form glyoxaldeoxyguanosine and O(6)-2-hydroxyethylguanosine DNA adducts, as demonstrated in the livers of rats.
Date Last Revised: 05/23/2006
Literature Basis:
- U.S. EPA Integrated Risk Information System: N-Nitrosodiethanolamine (CASRN 1116-54-7).
- Ducos, P. and Gaudin, R.: N-nitrosodiethanolamine urinary excretion in workers exposed to aqueous metalworking fluids. Int. Arch. Occup. Environ. Health 76(8): 591-597, 2003.
- Fuchs, J., Burg, J., Hengstler, J.G., Bolm-Audorff, U. and Oesch, F.: DNA damage in mononuclear blood cells of metal workers exposed to N-nitrosodiethanolamine in synthetic cutting fluids. Mutat. Res. 342(1-2): 95-102, 1995.
- Loeppky, R.N., Goelzer, P. and Chen, Y.: DNA adducts from N-nitrosodiethanolamine and related beta-oxidized nitrosamines in vivo: (32)P-postlabeling methods for glyoxal- and O(6)-hydroxyethyldeoxyguanosine adducts. Chem. Res. Toxicol. 15(4): 470-482, 2002.
- No Author: N-Nitrosodiethanolamine, CAS No. 1116-54-7. Report on Carcinogens, Eleventh Edition; U.S. Department of Health and Human Services, Public Health Service, National Toxicology Program, 2005.
Monitoring Methods used by OSHA
Laboratory Sampling/Analytical Method:
-
sampling media: Glass Fiber Filter (Gelman Type A open face), no backup pad
analytical solvent: Isopropanol
maximum volume: 480 Liters maximum flow rate: 2.0 L/min
current analytical method: Gas Chromatography; GC/TEA
alternate analytical method: High Performance Liquid Chromatography; HPLC/UV
method reference: OSHA Analytical Method (OSHA 31)
method classification: Fully Validated
note: Air sample and bulk must be protected from light. Collect a sample of the bulk substance and send to the lab in a separate mailing container at the time the air samples are submitted. Indicate on the sample sheet that a bulk sample has been submitted.
* All Trademarks are the property of their respective owners.
|
|
|
|
 |
|
Back to Top
www.osha.gov
