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

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

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: 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)

Auto-ignition temperature: 371°C (700°F)

Viscosity: 0.58 cP at 20°C

Not found in the public records searched: lower explosive limit, upper explosive limit and pH. 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): Lewis, R.J. Sr.; Hawley's Condensed Chemical Dictionary 15th Edition. John Wiley & Sons, Inc. New York, NY 2007, p. 1050; View the record
Melting point — Hazardous Substances Data Bank (HSDB): Lide, D.R. CRC Handbook of Chemistry and Physics 88th Edition 2007-2008. CRC Press, Taylor & Francis, Boca Raton, FL 2007, p. 3-444; View the record
Flash point — Hazardous Substances Data Bank (HSDB): Martin AE, Murphy FH; Glycols, Propylene Glycols. Kirk-Othmer Encyclopedia of Chemical Technology (1994). John Wiley & Sons, Inc. Online Posting Date: December 4, 2000; View the record
Density — Hazardous Substances Data Bank (HSDB): Same reference as melting point above.; View the record
Water solubility — Hazardous Substances Data Bank (HSDB): O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 2006, p. 1350; 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. 7; View the record
Auto-ignition temperature — Hazardous Substances Data Bank (HSDB): Fire Protection Guide to Hazardous Materials. 13 ed. Quincy, MA: National Fire Protection Association, 2002, p. 325-102; View the record
Viscosity — Hazardous Substances Data Bank (HSDB): Same reference as odor above.; 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

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: Hazardous Substances Data Bank (HSDB)
370.8 °F: OSHA Occupational Chemical Database
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.

-60 °C: Hazardous Substances Data Bank (HSDB)
-76 °F: OSHA Occupational Chemical Database
-60 °C: PAC Chemical Database, U.S. Department of Energy

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)
210 °F: OSHA Occupational Chemical Database

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.

2.62: OSHA Occupational Chemical Database

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)
1.04: OSHA Occupational Chemical Database
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

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