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Titanium isopropoxide

CAS No. 546-68-9 | PubChem CID 11026
Section 1. Identification
Chemical NameTitanium isopropoxide CAS No.546-68-9
Synonymsisopropyltitanate(Ⅳ); tetraisopropyltitanate Chinese Name钛酸(四)异丙酯
Molecular FormulaC12H28O4Ti Molecular Weight284.23
UN No.3272 Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word DANGER
Pictograms GHS02 · Flammable GHS05 · Corrosive GHS07 · Irritant
Hazard Statements H226H318H319H336H332
Precautionary Statements P210P233P240P241P242P243P261P264+P265P271P280P303+P361+P353P304+P340P305+P351+P338P305+P354+P338P317P319P337+P317P370+P378P403+P233P403+P235P405P501

Section 2. Hazards Identification

This chemical does not meet GHS hazard criteria for 1.7% (23 of 1323) of reports.

H226 (79.8%): Flammable liquid and vapor [Warning Flammable liquids]

H318 (34.2%): Causes serious eye damage [Danger Serious eye damage/eye irritation]

H319 (64%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

H336 (23.9%): May cause drowsiness or dizziness [Warning Specific target organ toxicity, single exposure; Narcotic effects]

P210, P233, P240, P241, P242, P243, P261, P264+P265, P271, P280, P303+P361+P353, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P337+P317, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 1323 reports by companies from 37 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Reported as not meeting GHS hazard criteria per 23 of 1323 reports by companies.

There are 36 notifications provided by 1300 of 1323 reports by companies with hazard statement code(s).

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]

H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

H332 (100%): Harmful if inhaled [Warning Acute toxicity, inhalation]

P210, P233, P240, P241, P242, P243, P261, P264+P265, P271, P280, P303+P361+P353, P304+P340, P305+P351+P338, P317, P337+P317, P370+P378, P403+P235, and P501 (click each P-code to see the statement)

The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.

H226: Flammable liquid and vapor [Warning Flammable liquids]

H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]

P210, P233, P240, P241, P242, P243, P264+P265, P280, P303+P361+P353, P305+P351+P338, P337+P317, P370+P378, P403+P235, and P501 (click each P-code to see the statement)

Section 4. First-Aid Measures

Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:

Refer to the "General First Aid" section. Specific First Aid: Wash skin with soap and water. In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin. (ERG, 2024)

Section 5. Fire-Fighting Measures

Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:

CAUTION: The majority of these products have a very low flash point. Use of water spray when fighting fire may be inefficient. CAUTION: For mixtures containing alcohol or polar solvent, alcohol-resistant foam may be more effective.

SMALL FIRE: Dry chemical, CO2, water spray or regular foam. If regular foam is ineffective or unavailable, use alcohol-resistant foam.

LARGE FIRE: Water spray, fog or regular foam. If regular foam is ineffective or unavailable, use alcohol-resistant foam. Avoid aiming straight or solid streams directly onto the product. If it can be done safely, move undamaged containers away from the area around the fire.

FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. For petroleum crude oil, do not spray water directly into a breached tank car. This can lead to a dangerous boil over. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (ERG, 2024)

If material on fire or involved in fire: Do not extinguish fire unless flow can be stopped or safely confined. Use water in flooding quantities as fog. Solid streams of water may be ineffective. Use "alcohol" foam, dry chemical or carbon dioxide. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Keep run-off water out of sewers and water sources.

Section 6. Accidental Release Measures

Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 50 meters (150 feet) in all directions.

LARGE SPILL: Consider initial downwind evacuation for at least 300 meters (1000 feet).

FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

If material not on fire and not involved in fire: Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard.

Personnel protection: Keep upwind. Avoid breathing vapors. ... Do not handle broken packages unless wearing appropriate personal protective equipment. Avoid bodily contact with the material.

Section 7. Handling and Storage

Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:

ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. A vapor-suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean, non-sparking tools to collect absorbed material.

LARGE SPILL: Dike far ahead of liquid spill for later disposal. Water spray may reduce vapor, but may not prevent ignition in closed spaces. (ERG, 2024)

Section 8. Exposure Controls / Personal Protection

5.2 [mg/m3]

57 [mg/m3]

340 [mg/m3]

Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:

Wear positive pressure self-contained breathing apparatus (SCBA). Structural firefighters' protective clothing provides thermal protection but only limited chemical protection. (ERG, 2024)

Personnel protection: ... Wear appropriate chemical protective gloves, boots and goggles.

Section 9. Physical and Chemical Properties

Tetraisopropyl titanate appears as a water-white to pale-yellow liquid with an odor like isopropyl alcohol. About the same density as water. Vapors heavier than air.

Liquid; CBI

Liquid; mp = 18-20 deg C; [Merck Index] Colorless to light yellow liquid; [HSDB] Light yellow liquid; [MSDSonline]

Light-yellow liquid

Colorless to light-yellowish fluid

220 °C @ 760 mm Hg

220 °C @760 [mm Hg]

Approx 20 °C

Sol in anhydrous ethanol, ether, benzene, chloroform

0.9711 @ 20 °C/4 °C

0.9711 @ 20°C

9.8 (AIR= 1)

FUMES IN AIR

When heated to decomposition it emits acrid smoke & irritating fumes.

2.11 centipoises @ 25 °C (apparent)

Index of refraction: 1.46

Dielectric constant: 3.64 @ 62 kilocycles; decomp rapidly in water

Metals -> Metal Alkoxides

FCS -> FDA Inventory of Food Contact Substances Listed in 21 CFR

Section 10. Stability and Reactivity

Highly flammable. Fumes in air. Soluble in water. Decomposes rapidly in water to form flammable isopropyl alcohol.

Bases, Strong

Highly Flammable

Water-Reactive

TETRAISOPROPYL TITANATE is a metal alkoxide, a strong base.

PRECAUTIONS MUST BE TAKEN IN HANDLING TO EXCLUDE WATER FROM SOLVENTS AND DILUENTS.

Section 11. Toxicological Information

LD50 Rat oral 7460 mg/kg

Section 13. Disposal Considerations

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

Section 14. Transport Information

Flammable Liquid

Source: PubChem CID 11026 (NIH/NLM, public domain). Retrieved from PubChem, a public-domain chemistry database maintained by the U.S. National Library of Medicine. Last updated: 2026-08-02 09:22:32.
Disclaimer: This information is compiled for reference only and does not replace the manufacturer's official Safety Data Sheet. Always consult the supplier's SDS before handling any chemical.