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Description
1-Octylphosphonic acid is a basic building block and used in the preparation of various pharmaceutical compounds and chemical products. It is supported with calcium hydroxyapatite and used in the dental field as corrosion inhibitor and organic building block. It acts as a corrosion inhibitor in metallic household surfaces such as faucets and drains as well as prevents the rusting of can or dispenser. It is also used in the synthesis of octyl-phosphonic acid dimethyl ester by reacting with iodomethane in presence of CS2 CO3.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
1-Octylphosphonic acid is a basic building block and used in the preparation of various pharmaceutical compounds and chemical products. It is supported with calcium hydroxyapatite and used in the dental field as corrosion inhibitor and organic building block. It acts as a corrosion inhibitor in metallic household surfaces such as faucets and drains as well as prevents the rusting of can or dispenser. It is also used in the synthesis of octyl-phosphonic acid dimethyl ester by reacting with iodomethane in presence of CS2 CO3.
Solubility
Slightly soluble in organic solvents and water.
Notes
Incompatible with strong oxidizing agents. Keep the container tightly closed in a dry and well-ventilated place.

Specifications
Specifications
Melting Point | 100°C to 102°C |
Quantity | 1 g |
Beilstein | 1764242 |
Solubility Information | Slightly soluble in organic solvents and water. |
Formula Weight | 194.21 |
Percent Purity | 99% |
Chemical Name or Material | 1-Octylphosphonic acid |
Certificates
Certificates
A lot number is required to show results for certificates. To find your lot number on previous orders use our order status area.
Lot Number | Certificate Type | Date | Product Code |
---|---|---|---|
N13L022 | Certificate of Analysis | 17/02/2025 | L18586.06,L18586.03 |
P27A060 | Certificate of Analysis | 21/01/2025 | L18586.06,L18586.03 |
U08K033 | Certificate of Analysis | 14/08/2024 | L18586.06,L18586.03 |
P21K015 | Certificate of Analysis | 02/04/2024 | L18586.06,L18586.03 |
10184495 | Certificate of Analysis | 25/05/2023 | L18586.03 |
Safety and Handling



- 1-Octylphosphonic acid
- Danger
- Acute toxicity Category 4
- Serious eye damage/eye irritation Category 1
- Skin corrosion/irritation Category 1 B
- Specific target organ toxicity after repeated exposure Category 2
- H302-Harmful if swallowed.
- H314-Causes severe skin burns and eye damage.
- H318-Causes serious eye damage.
- H373-May cause damage to organs.
- P280-Wear protective gloves/protective clothing/eye protection/face protection.
- P301+P330+P331-IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
- P303+P361+P353-IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower.
- P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
- P310-Immediately call a POISON CENTER/doctor/.
- MIXTURE LIST-Contains : 1-Octylphosphonic acid
RUO – Research Use Only
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