Safety data for urea
General
Synonyms: B-I-K, carbamide, carbamide resin, carbamimidic acid, carbonyl diamide, isourea, pseudourea, carbonyldiamine, supercel 3000, ureaphil, ureophil, urevert, varioform II
Molecular formula: CH4N2O
CAS No: 57-13-6
EC No: 200-315-5
Physical data
Appearance: white crystalline powder
Melting point: 135 - 137C
Boiling point:
Specific gravity: 1.335
Vapour pressure:
Flash point:
Explosion limits:
Autoignition temperature:
Water solubility: moderate
Stability
Substances to be avoided include strong oxidizing agents. Protect from moisture.
Toxicology
Not hazardous according to Directive 67/548/EEC.
Toxicity data
(The meaning of any abbreviations which appear in this section is given here.)
ORL-RAT LD50 8471 mg kg-1
IPR-RAT LD50 > 5000 mg kg-1
IVN-RAT LD50 5300 mg kg-1
IVN-MUS LD50 4600 mg kg-1
Risk phrases
(The meaning of any risk phrases which appear in this section is given here.)
Personal protection
Minimize exposure.
Safety phrases
(The meaning of any safety phrases which appear in this section is given here.)
[Return to Physical & Theoretical Chemistry Lab. Safety home page.]
This information was last updated on September 1, 2005. We have tried to make it as accurate and useful as possible, but we can take no responsibility for its use or misuse.
Note also that the information on the PTCL Safety web site, where this page was hosted, has been copied onto many other sites, often without permission. If you have any doubts about the veracity of the information that you are viewing, or have any queries, please check the URL that your web browser displays for this page. If the URL begins "http://msds.chem.ox.ac.uk/" the page is maintained by the Safety Officer in Physical Chemistry at Oxford University. If not, this page is a copy made by some other person and we have no responsibility for it.
