N-OCTYLPHOSPHONIC ACID
Appearance Solubility- Product Name
- N-OCTYLPHOSPHONIC ACID
- CAS No.
- 4724-48-5
- Chemical Name
- N-OCTYLPHOSPHONIC ACID
- Synonyms
- Octylphosphonsure;1-octyl phosphate;octyl-phosphonicaci;octyl-Phosphonicacid;Octanephosphonic acid;N-OCTYLPHOSPHONIC ACID;1-OCTYLPHOSPHONIC ACID;1-0ctylphosphonic acid;1-Octanephosphonic acid;Phosphonic acid, octyl-
- CBNumber
- CB8218159
- Molecular Formula
- C8H19O3P
- Formula Weight
- 194.21
- MOL File
- 4724-48-5.mol
N-OCTYLPHOSPHONIC ACID Property
- Melting point:
- 100-102°C
- Boiling point:
- 170 °C(Press: 0.05 Torr)
- Density
- 1.080±0.06 g/cm3(Predicted)
- vapor pressure
- 0Pa at 25℃
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- soluble in Methanol
- pka
- 2.69±0.10(Predicted)
- form
- Powder
- color
- white to off-white
- Specific Gravity
- 1.10
- Water Solubility
- Slightly soluble in organic solvents and water.
- Hydrolytic Sensitivity
- 4: no reaction with water under neutral conditions
- BRN
- 1764242
- InChIKey
- NJGCRMAPOWGWMW-UHFFFAOYSA-N
- LogP
- 2.7 at 25℃
- EPA Substance Registry System
- Phosphonic acid, octyl- (4724-48-5)
Safety
- Hazard Codes
- C
- Risk Statements
- 36/37/38-48/22-34-22
- Safety Statements
- 26-36/37/39-45
- RIDADR
- UN 3261 8 / PGII
- WGK Germany
- 2
- TSCA
- Yes
- HazardClass
- 8
- PackingGroup
- III
- HS Code
- 29319090
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H373May cause damage to organs through prolonged or repeated exposure
- Precautionary statements
-
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P314Get medical advice/attention if you feel unwell.
N-Bromosuccinimide Price
- Product number
- 735914
- Product name
- Octylphosphonic acid
- Purity
- 97%
- Packaging
- 1g
- Price
- $76.8
- Updated
- 2025/07/31
- Product number
- 735914
- Product name
- Octylphosphonic acid
- Purity
- 97%
- Packaging
- 5g
- Price
- $267
- Updated
- 2025/07/31
- Product number
- O0380
- Product name
- n-Octylphosphonic Acid
- Purity
- >98.0%(T)
- Packaging
- 1g
- Price
- $63
- Updated
- 2025/07/31
- Product number
- O0380
- Product name
- n-Octylphosphonic Acid
- Purity
- >98.0%(T)
- Packaging
- 5g
- Price
- $209
- Updated
- 2025/07/31
- Product number
- 15-3520
- Product name
- n-Octylphosphonic acid, min. 97% OPA
- Packaging
- 1g
- Price
- $51
- Updated
- 2024/03/01
N-OCTYLPHOSPHONIC ACID Chemical Properties,Usage,Production
Appearance
N-octylphosphonic acid is a white to off-white solid.
Solubility
Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly).
Uses
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.
Uses
OPA can be used as a surfactant that may be added to silver (Ag)/titanium oxide (TiO2) for uniform dispersion into the polymeric matrix. It may be coated on indium-tin oxide (ITO) substrates, which can be used for super-resolution microscopy. OPA based charge blocking layer may be used to prevent leakage of current in a hybrid dielectric film.
General Description
Octylphosphonic acid (OPA) forms a self-assembled monolayer (SAM), which serves as a protective anti-corrosive phosphonate layer on a variety of surfaces.
Flammability and Explosibility
Non flammable
Synthesis
111-83-1
4724-48-5
General procedure for the synthesis of octylphosphonic acid from 1-bromooctane: 2.5 ml of 1-bromooctane was added to a 1000 ml flask, followed by 12.9 g of aluminum trichloride and stirred well at room temperature. The mixture was heated to 85°C and 1.0 mole of triethyl phosphite was slowly added dropwise, controlling the temperature between 85°C and 105°C. The dropwise process lasted for 3.0 hours. Upon completion of the dropwise addition, the reaction temperature was raised to 160 °C, and the reaction was continued at this temperature for 4 hours. At the end of the reaction, the system was cooled to 80°C and 506.0 g of 40% aqueous hydrogen bromide solution was slowly added dropwise for 60 minutes. After the dropwise addition, the system was heated to reflux and the reaction was maintained for 4 hours. Upon completion of the reaction, the aqueous hydrogen bromide solution was removed by atmospheric pressure distillation at 105 °C to recover the hydrogen bromide. Subsequently, 1-bromooctane was distilled at 90 °C under a vacuum of 1.0 kPa. After the system was cooled to room temperature, a mixed solution of n-hexane and water with a volume ratio of 6:1 was added to the reactor, which was thoroughly mixed and transferred to a separatory funnel for liquid-liquid separation. After separation, the lower aqueous phase was recovered, and the upper organic phase was transferred to a flask, and the hexane was removed and recovered by distillation at atmospheric pressure and 85 °C to finally obtain octylphosphonic acid. The yield of the reaction was 95.1% and the chromatographic purity of the product was 98.2% after sampling and analysis.
References
[1] Patent: CN105153224, 2017, B. Location in patent: Paragraph 0025; 0026; 0027; 0028; 0029; 0030; 0031-0036
[2] Journal of the American Chemical Society, 1945, vol. 67, p. 1182
[3] Patent: US2397422, 1945,
[4] Journal of Organic Chemistry, 1960, vol. 25, p. 1000 - 1006
[5] Patent: JP5664635, 2015, B2
N-OCTYLPHOSPHONIC ACID Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from N-OCTYLPHOSPHONIC ACID manufacturers
- Product
- n-Octylphosphonic acid 4724-48-5
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 98%min
- Supply Ability
- 30tons/month
- Release date
- 2023-04-07
- Product
- N-OCTYLPHOSPHONIC ACID 4724-48-5
- Price
- US $6.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 2000KG/Month
- Release date
- 2024-08-09
- Product
- 1-Octyl phosphonic acid 4724-48-5
- Price
- US $75.00-20.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 20ton
- Release date
- 2024-05-30