Safety data sheet for Propylene glycol
CAS 57-55-6
This is the free preview of a draft SDS for Propylene glycol — 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: Cosmetics, e-liquid base, food and pharma.
Draft safety data sheet — preview
Sections 1, 2, 9 of 16
- CAS number
- 57-55-6
- Molecular formula
- C3H8O2
- Molecular weight
- 76.09 g/mol
- Signal word
- None required — not classified
Hazard classification
- Not Classified
Section 1 — Identification
1.1 Product identifier
Product identifier: Propylene Glycol
Chemical name (IUPAC): propane-1,2-diol
CAS number: 57-55-6
PubChem CID reference: 1030
Synonyms: propylene glycol; 1,2-propanediol; propane-1,2-diol; 1,2-Propylene glycol; 1,2-dihydroxypropane; 2-Hydroxypropanol; Isopropylene glycol; Dowfrost; Sirlene; Methylethyl glycol
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: Liquid
Appearance: Colorless viscous liquid
Odor: Practically odorless
Boiling point: 188.2°C (371°F) at 1013 hPa
Melting point: -60°C (-76°F)
Flash point: 104°C (219°F) closed cup
Density: 1 g/cm³ at 20°C
Vapor pressure: 0.1 hPa at 20°C
Water solubility: Miscible
Log Pow (log Kow): -0.92
Vapor density: 2.62 (air = 1)
Lower explosive limit: Not available
Upper explosive limit: Not available
Auto-ignition temperature: 371°C (700°F)
Viscosity: 0.58 cP at 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
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 Propylene glycol, and where each one comes from
24 measured values for 12 properties, read from 3 public databases. On 4 properties the records differ. Each reading is shown with its own record. Follow any record to read the value at its source.
Boiling point
3 records agree
Used with vapour pressure to judge how readily the substance reaches the air you breathe.
- 187.6 °C @760 [mm Hg]
- PAC Chemical Database, U.S. Department of Energy
Melting point
3 records agree
Fixes the physical state at handling temperature, which the label and the transport class depend on.
Flash point
4 records, 99 to 107 °C
The lowest temperature at which the liquid gives off enough vapour to ignite. It decides the GHS flammable liquid category.
- 104 °C Pensky-Martens closed cup
- Hazardous Substances Data Bank (HSDB)
- 210 °F (99 °C) (Closed cup)
- Hazardous Substances Data Bank (HSDB)
- 225 °F (Open cup)
- Hazardous Substances Data Bank (HSDB)
Auto-ignition temperature
1 record
The temperature at which the substance ignites with no spark or flame. It sets safe surface and process temperatures.
- 700 °F (371 °C)
- Hazardous Substances Data Bank (HSDB)
Explosive limits
2 records differ
The vapour concentration range in air that will burn. Below the lower limit and above the upper limit it will not.
- Above 99 °C explosive vapor/air mixtures may be formed
- Hazardous Substances Data Bank (HSDB)
- Lower explosive limit: 2.6%; Upper explosive limit: 12.6%
- Hazardous Substances Data Bank (HSDB)
Vapour pressure
2 records differ
The higher it is, the faster the substance evaporates into the workplace air at room temperature.
- 0.13 mm Hg at 25 °C /Extrapolated/
- Hazardous Substances Data Bank (HSDB)
- 0.08 mmHg
- OSHA Occupational Chemical Database
Vapour density
1 record
Above 1 the vapour sinks and collects in pits, sumps and low enclosed spaces.
Density
3 records differ
Needed to convert between mass and volume on the label, in transport papers and in a spill estimate.
- 1.0361 g/cu cm at 20 °C
- Hazardous Substances Data Bank (HSDB)
- 1.0361 @ 20°C
- PAC Chemical Database, U.S. Department of Energy
Solubility
2 records, each a different case
Determines spill behaviour, the right extinguishing media and the correct first-aid rinse.
- Soluble in benzene
- Hazardous Substances Data Bank (HSDB)
- In water, 1X10+6 mg/L at 20 °C /miscible/
- 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 = -0.92
- 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.
- 0.581 cP at 20 °C
- Hazardous Substances Data Bank (HSDB)
Odour
1 record
Odour is a warning property only. Many substances are hazardous well below the concentration you can smell.
- Practically odorless
- Hazardous Substances Data Bank (HSDB)
These are the public records read for Propylene glycol, 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 Propylene glycol
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.