Safety data sheet for Urea
CAS 57-13-6
This is the free preview of a draft SDS for Urea — Sections 1, 2 and 9, generated from the sources named below. The full 16-section draft, with your own company in Section 1, is $5 per document.
Typically documented by: Fertiliser, cosmetics, skin creams.
Draft safety data sheet — preview
Sections 1, 2, 9 of 16
- CAS number
- 57-13-6
- Molecular formula
- CH4N2O
- Molecular weight
- 60.056 g/mol
- Signal word
- None required — not classified
Section 1 — Identification
1.1 Product identifier
Product identifier: Urea
Chemical name (IUPAC): urea
CAS number: 57-13-6
PubChem CID reference: 1176
Synonyms: urea; carbamide; Carbonyldiamide; Ureophil; Carbonyldiamine; Ureaphil; Keratinamin; Urevert; Alphadrate; Aquadrate
Section 2 — Hazards Identification
2.1 Classification of the substance or mixture
Classification basis: OSHA 29 CFR 1910.1200 Appendix A, aligned to the GHS Rev. 7 hazard classes.
Classification: Not classified. This substance meets no hazard class criteria of OSHA 29 CFR 1910.1200 Appendix A on the data reviewed.
2.2 Label elements
Signal word: None required
GHS pictograms: None
Section 9 — Physical and Chemical Properties
9.1 Information on basic physical and chemical properties
Physical form: Solid
Appearance: White crystals or powder
Odor: MAY GRADUALLY DEVELOP SLIGHT ODOR OF AMMONIA, ESP IN PRESENCE OF MOISTURE
Melting point: 132.7°C (271°F)
Density: 1.3230 @ 20 °C/4 °C
Vapor pressure: 6.7 hPa at 25°C
Water solubility: Miscible
Log Pow (log Kow): -2.11
Viscosity: 1.78 mPa-s (46% solution @ 20 °C); 1.81 mP-s @ 137 °C; 1.90 mPa-s (saturated solution @ 20 °C)
pH: 7.2 (10% solution)
Not found in the public records searched: boiling point, flash point, vapor density, lower explosive limit, upper explosive limit and auto-ignition temperature. Enter these from your supplier's safety data sheet or your own test report before the draft is issued.
Where each value came from
- Odor — Hazardous Substances Data Bank (HSDB)
- Osol, A. and J.E. Hoover, et al. (eds.). Remington's Pharmaceutical Sciences. 15th ed. Easton, Pennsylvania: Mack Publishing Co., 1975, p. 864
- View the record
- Melting point — Hazardous Substances Data Bank (HSDB)
- Lewis, R.J., Sr (Ed.). Hawley's Condensed Chemical Dictionary. 13th ed. New York, NY: John Wiley & Sons, Inc. 1997, p. 1157
- View the record
- Density — Hazardous Substances Data Bank (HSDB)
- Lide, DR (ed.). CRC Handbook of Chemistry and Physics. 81st Edition. CRC Press LLC, Boca Raton, FL: 2000, p. 3-328
- View the record
- Log Pow (log Kow) — Hazardous Substances Data Bank (HSDB)
- Hansch, C., Leo, A., D. Hoekman. Exploring QSAR - Hydrophobic, Electronic, and Steric Constants. Washington, DC: American Chemical Society., 1995, p. 3
- View the record
- Viscosity — Hazardous Substances Data Bank (HSDB)
- Environment Canada; Tech Info from Problem Spills: Urea p. 4 (1985)
- View the record
- pH — Hazardous Substances Data Bank (HSDB)
- Environment Canada; Tech Info for Problem Spills: Urea p.4 (1985)
- View the record
A value with no row here was assembled from more than one record, so no single record is credited for it. The draft you buy carries this table as an appendix covering all 16 sections.
Sources
- ECHA C&L Inventory — harmonised CLP entry
- Hazardous Substances Data Bank (HSDB)
- PubChem — GHS classification
- PubChem — compound record
- PubChem — names and identifiers
- PubChem — regulatory information
- PubChem — toxicity data
- PubChem — transport information
Sections 1.3 and 1.4 are withheld here because the supplier and emergency contact blocks carry your own company details in the draft you buy. Every draft needs review by a competent person before it is issued.
Measured values for Urea, and where each one comes from
15 measured values for 8 properties, read from 2 public databases. On 1 property the records differ. Each reading is shown with its own record. Follow any record to read the value at its source.
Melting point
2 records agree
Fixes the physical state at handling temperature, which the label and the transport class depend on.
Vapour pressure
1 record
The higher it is, the faster the substance evaporates into the workplace air at room temperature.
- 1.2X10-5 mm Hg @ 25 °C
- Hazardous Substances Data Bank (HSDB)
Density
3 records differ
Needed to convert between mass and volume on the label, in transport papers and in a spill estimate.
- 1.3230 @ 20 °C/4 °C
- Hazardous Substances Data Bank (HSDB)
- On further heating it decomp to biuret, NH3, cyanuric acid; pH of 10% water soln: 7.2; density of water soln (wt/wt): 1.027 @ 10%; 1.054 @ 20%; 1.145 @ 50%
- Hazardous Substances Data Bank (HSDB)
- 1.335 @25 °C
- PAC Chemical Database, U.S. Department of Energy
Solubility
4 records, each a different case
Determines spill behaviour, the right extinguishing media and the correct first-aid rinse.
- 10 ml 95% alc, 6 ml methanol, 1 ml boiling 95% alc, 20 ml abs alc, 2 ml glycerol; almost insol in chloroform, ether; sol in concn HCl
- Hazardous Substances Data Bank (HSDB)
- INSOL IN BENZENE; SOL IN ACETIC ACID
- Hazardous Substances Data Bank (HSDB)
- Sol in pyrimidine
- Hazardous Substances Data Bank (HSDB)
- In water, 5.45X10+5 mg/l @ 25 °C
- Hazardous Substances Data Bank (HSDB)
Partition coefficient (log Kow)
1 record
Indicates whether the substance accumulates in fat or in water, which drives the environmental sections.
- log Kow = -2.11
- Hazardous Substances Data Bank (HSDB)
Viscosity
1 record
Governs how far a spill spreads and how fast it soaks into a surface or a sorbent.
- 1.78 mPa-s (46% solution @ 20 °C); 1.81 mP-s @ 137 °C; 1.90 mPa-s (saturated solution @ 20 °C)
- Hazardous Substances Data Bank (HSDB)
pH
1 record
Drives the skin and eye corrosion classification for solutions, alongside the corrosivity data.
- 7.2 (10% solution)
- Hazardous Substances Data Bank (HSDB)
Odour
2 records, each a different case
Odour is a warning property only. Many substances are hazardous well below the concentration you can smell.
- MAY GRADUALLY DEVELOP SLIGHT ODOR OF AMMONIA, ESP IN PRESENCE OF MOISTURE
- Hazardous Substances Data Bank (HSDB)
- Almost odorless
- Hazardous Substances Data Bank (HSDB)
These are the public records read for Urea, published here unchanged. Where two records disagree, the draft you buy states the value and names the record behind it, so a reviewer can see what was chosen. Every draft needs review by a competent person before it is issued.
Get the full draft SDS for Urea
The draft covers all 16 sections under OSHA 29 CFR 1910.1200 and GHS Rev. 7, or the CLP EC 1272/2008 layout for the EU. Each draft arrives as an editable .docx and a PDF with an appendix naming the source of each value, in about 60 seconds. $5 per document, no account.