Fluorophosphoric acid
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Basic information
- CAS
13537-32-1- Standard SMILES
O=P(O)(O)F- InChIKey
DWYMPOCYEZONEA-UHFFFAOYSA-N- Molecular formula
- H2PO3F
- Average molar mass
- 99.986 g/mol
- Monoisotopic mass
- 99.97255908
Overview
Fluorophosphoric acid, anhydrous appears as a colorless liquid. Corrosive to metals and tissue. Used in metal cleaning, as a chemical polishing agent and as a catalyst.
Names & identifiers
- Preferred name
- Fluorophosphoric acid
- IUPAC
- fluorophosphonic acid
- English name
- FLUOROPHOSPHORIC ACID
- Molecular formula
- FH2O3P
- Molecular weight
- 99.99
Names & synonyms
fluorophosphoric acid13537-32-1Phosphorofluoridic acidMONOFLUOROPHOSPHORIC ACIDFluorophosphoric acid, anhydrousFluorophosphonic acid, mono-HSDB 1186UNII-IW87A7KU3RUN1776H2PFO3[PFO(OH)2]DTXSID1075309
Show more names
70%inwater)monofluorophosphoricFluorophosphate AcidLUOROPHOSPHORIC ACIDfluorophosphonic acidFluoridophosphoric acidmono-fluorophosphonicaci
CHEBI:30210MONOFLUOROPHOSPHORIC ACID [HSDB](PFO(OH)2)FLUOROPHOSPHORIC ACID, (ANHYDROUS)FLUOROPHOSPHORIC ACID, [ANHYDROUS]RefChem:140961Fluorophosphonic acid, monoDTXCID4034316
Database identifiers
- CAS
13537-32-1- PubChem CID
- 24267
- DTXSID
DTXSID1075309- ChEMBL
CHEMBL1208639- ChEBI
CHEBI:30210- UNII
- IW87A7KU3R
- EC Number
- 677-667-5
- Nikkaji
- J95.957J
Properties
Computed structural propertiesFilling in
- XLogP
- -1.1
- Topological polar surface area
- 57.5 Ų
- Hydrogen bond donors
- 2
- Hydrogen bond acceptors
- 4
- Rotatable bonds
- 0
- Heavy atoms
- 5
- Formal charge
- 0
- Complexity
- 61.3
Experimental & physicochemical properties
Chemical Classes
Other Classes -> Fluorides, Inorganic
Corrosives
DrugsPharmaceuticals
OdorPractically no odor
Density1.818 @ 25 °C/4 °C
ViscosityVISCOUS LIQUID
Color/FormCOLORLESS LIQUID
SolubilitySOL IN ALL PROPORTIONS IN COLD WATER
CorrosivityCorrosive to glass since HF is present in the aqueous acid and can be generated by hydrolysis of the anhydrous acid.
Vapor Density3.45
Physical Description
Fluorophosphoric acid, anhydrous appears as a colorless liquid. Corrosive to metals and tissue. Used in metal cleaning, as a chemical polishing agent and as a catalyst.
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
Danger
H301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]
P260, P262, P264, P270, P271, P280, P284, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P320, P321, P330, P361+P364, P363, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 44 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory InformationThe New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
DOT LabelCorrosive
Fire Hazards
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:
· Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Health Hazards
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:
· TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury or death.
Hazards SummaryA strong tissue irritant; [Hawley] A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Inhalation may cause chemical pneumonitis; [MSDSonline] See FLUORIDES.
DOT ID and Guide1776 154
Chemistry & industry
Pharmacology
Absorption, Distribution and Excretion
THE AMOUNT OF TOTAL FLUORIDE RETAINED AFTER BRUSHING WITH A DENTIFRICE WAS AN AVG 19.3% OF THAT APPLIED, WHILE THAT AFTER TOPICAL APPLICATION OF 2% NAF SOLN FOR 4 MIN WAS 13.6%. AFTER RINSING WITH 10 ML OF 500 PPM NAF SOLN FOR 30 SEC 11.6%, & AFTER CRUNCHING TABLET CONTAINING 1 MG F, 8.9% WAS RETAINED. AFTER MOUTH RINSING OR TOPICAL APPLICATION, RESIDUAL FLUORIDE WAS FOUND IN SALIVA FOR 24-48 HR. SALIVARY FLUORIDE WAS FOUND FOR ONLY 90-120 MIN AFTER APPLICATION OF MONOFLUOROPHOSPHATE CONTAINING DENTIFRICE OR FLUORIDE TABLETS.
Uses & manufacturing
Uses
Used in metal cleaners, electrolytic or chemical polishing agents, and to make protective coatings on metal surfaces; [Hawley]
Acid and Alkali Cleaning of Metals [Category: Clean]
In metal cleaners; electrolytic or chemical polishing agents; formation of protective coatings for metal surfaces; catalyst
Its sodium salt, sodium monofluorophosphate, is the most widely used dentifrice additive for the reduction of tooth decay.
Use (kg; approx.) in Germany (2009): >75
ImpuritiesHF, phosphoric acid, difluorophosphoric acid, hexafluorophosphoric acid (chemicals are in equilibrium with each other)
Methods of ManufacturingReaction of phosphoric acid or phosphoric anhydride with HF or phosphorus oxyfluoride.
Applications
UsesMetal cleaners, electrolytic or chemical polishing agents, formation of protective coatings for metal surfaces, catalyst.
General DescriptionA colorless liquid. Corrosive to metals and tissue. Used in metal cleaning, as a chemical polishing agent and as a catalyst.
Additional notes
Related reactions
4 records
Compound notes
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