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
Hazard classification
- 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
1.2 Relevant identified uses of the substance or mixture and uses advised against
Relevant identified uses: Laboratory reagent, industrial processing aid, formulation component, and internal product-stewardship review subject to supplier confirmation.
Uses advised against: Consumer, medical, food, or any other use not covered by the supplier's label, technical instructions, or exposure scenario.
Section 2 — Hazards Identification
2.1 Classification of the substance or mixture
Classification: Not classified as hazardous according to the sources named below.
2.2 Label elements
Signal word: Not available
GHS pictograms: None
Hazard statement: Not classified
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
Boiling point: Not available
Melting point: 132.7°C (271°F)
Flash point: Not available
Density: 1.3230 @ 20 °C/4 °C
Vapor pressure: 6.7 hPa at 25°C
Water solubility: Miscible
Log Pow (log Kow): -2.11
Vapor density: Not available
Lower explosive limit: Not available
Upper explosive limit: Not available
Auto-ignition temperature: Not available
Viscosity: 1.78 mPa-s (46% solution @ 20 °C); 1.81 mP-s @ 137 °C; 1.90 mPa-s (saturated solution @ 20 °C)
pH: Not available
9.2 Other information
Other information: Additional classification-supporting physical hazard data should be confirmed from the customer-specific product specification where required.
Sources
- 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.