- ▸ Corrosion inhibition: Inhibitor for steel in hydrochloric-acid pickling and acidizing
- ▸ Oil & gas: Corrosion inhibitor in well-acidizing fluids
- ▸ Solvent stabilization: Stabilizer for chlorinated hydrocarbon formulations
- ▸ Chemical synthesis: Intermediate and building block
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
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Transport classification per the UN Model Regulations / 49 CFR 172.101 Hazardous Materials Table. Confirm against the grade-specific SDS (Section 14) before shipping.
Propargyl alcohol (2-propyn-1-ol; CAS 107-19-7) is the simplest acetylenic alcohol — a reactive, water-miscible liquid with both a triple bond and a hydroxyl group. Its standout industrial use is as a steel corrosion inhibitor in acid pickling and oil-well acidizing, where it dramatically slows acid attack on metal; it is also a chemical intermediate and solvent. It is toxic and flammable, so it is handled by trained personnel per the SDS. Identity: PubChem.
What is propargyl alcohol?
Propargyl alcohol is HC≡C–CH2OH, a small molecule carrying a reactive carbon–carbon triple bond next to a hydroxyl. The triple bond lets it polymerize and adsorb onto steel surfaces, which is the basis of its powerful corrosion-inhibiting action in strong acids, and also makes it a versatile building block in synthesis.
Applications by sector
Corrosion inhibition (oilfield & metal). The primary use: a corrosion inhibitor and intensifier in hydrochloric-acid pickling baths and in oil- and gas-well acidizing fluids, protecting tubing and equipment from acid attack — often paired with the acidizing acids (HF / ammonium bifluoride mud-acid systems). Chemical synthesis. An intermediate for pharmaceuticals, agrochemicals, corrosion-inhibitor packages and specialty chemicals. Solvent & stabilizer. A solvent and a stabilizer for chlorinated solvents. Use levels are application-specific; design them with your process and EHS team.
Forms and grades
Supplied as a clear liquid; confirm assay and grade on the RFQ. The CoA documents the lot.
Handling, hazards and documentation
Propargyl alcohol is toxic (by inhalation, skin and ingestion) and flammable, and is corrosive/irritating. Handle only with appropriate PPE, ventilation and controls per the current Safety Data Sheet (SDS). Each lot ships with a Certificate of Analysis (CoA); transport under the applicable hazardous-materials rules.
Bulk supply and RFQ
RawSource supplies propargyl alcohol in bulk to oilfield, metal-treatment and chemical-synthesis buyers, with CoA and SDS per lot, under HazMat transport. Submit an RFQ with your grade and target quantity.
Typical Properties
Typical reference values, not a specification; the Certificate of Analysis (CoA) for the lot governs.
| Property | Typical Value |
|---|---|
| Chemical Name | Propargyl alcohol (2-propyn-1-ol) |
| CAS Number | 107-19-7 |
| Molecular Formula | C3H4O |
| Appearance | Clear, colorless liquid |
| Solubility | Miscible with water and many organic solvents |
| Key use | Steel corrosion inhibitor (acidizing / pickling); intermediate |
| Hazard / handling | Toxic and flammable — refer to the current SDS |
Frequently Asked Questions
What is propargyl alcohol used for?
Propargyl alcohol (CAS 107-19-7) is used mainly as a steel corrosion inhibitor in acid pickling and oil-well acidizing, and as a chemical intermediate (for pharmaceuticals, agrochemicals and corrosion-inhibitor packages) and a solvent/stabilizer.
Why is propargyl alcohol a corrosion inhibitor?
Its reactive triple bond lets it adsorb onto and polymerize on steel surfaces in strong acid, forming a protective film that sharply reduces acid attack — the reason it is a core inhibitor in HCl pickling and well acidizing.
Is propargyl alcohol hazardous?
Yes — it is toxic (inhalation, skin, ingestion) and flammable, and is corrosive/irritating. It requires trained handling with PPE and ventilation per the SDS and ships under hazardous-materials rules.
What is the CAS and formula of propargyl alcohol?
It is 2-propyn-1-ol, CAS 107-19-7 (PubChem CID 7859), molecular formula C3H4O. The CoA documents assay and grade.
How is bulk propargyl alcohol supplied and quoted?
RawSource supplies it as a liquid in bulk with CoA and SDS per lot, under HazMat transport. Pricing is quote-based on grade and volume; submit an RFQ with your target quantity.
Disclaimer. Information on this page — including chemical properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot you purchase governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim, or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information.
