W290017

Phosphoric acid solution

85 wt. % in H₂O, FCC, FG

• Synonym(s): Phosphoric acid, Orthophosphoric acid
• Linear Formula: H₃PO₄
• CAS Number: 7664-38-2
• Molecular Weight: 98.00
• FEMA Number: 2900
• Beilstein: 1921286
• MDL number: MFCD00011340
• UNSPSC Code: 12164502
• PubChem Substance ID: 24901383
• E Number: E 338
• NACRES: NA.21

Properties

• biological source: synthetic
• Quality Level: 400
• grade: FG; Halal; Kosher
• reg. compliance: EU Regulation 1333/2008 & 178/2002; FCC
• vapor density: 3.4 (vs air)
• vapor pressure: 2.2 mmHg ( 20 °C); 5 mmHg ( 25 °C)
• Assay: 84.0-86% (by NaOH, titration)
• form: liquid
• concentration: 85 wt. % in H₂O
• bp: 158 °C (lit.)
• mp: ~40 °C (lit.)
• density: 1.685 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤0.02%passes test; fluoride (F^-): ≤10 ppm; sulfate (SO₄^2-): ≤1500 ppm
• cation traces: As: ≤1 ppm; Cd: ≤1 ppm; Hg: ≤1 ppm; Pb: ≤1 ppm
• application(s): flavors and fragrances
• Documentation: see Safety & Documentation for available documents
• food allergen: no known allergens
• Organoleptic: faint
• SMILES string: OP(O)(O)=O
• InChI: 1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
• InChI key: NBIIXXVUZAFLBC-UHFFFAOYSA-N
• Gene Information: human ... SRC(6714)

Description

Application

• A Novel Resistive Sensor Network Utilizing an SAP-Enhanced Ionic Layer and CNT Doping for Multipoint Pressure Measurement.: This article showcases the role of phosphoric acid solutions in creating sensitive and accurate pressure sensors for various technological applications, from healthcare to consumer electronics (Fan et al., 2024).

Other Notes

Concentrated phosphoric acid is approx. 85% H₃PO₄ (aqueous).

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H290,H302,H314
• Precautionary Statements: P234 - P270 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B
• Storage Class Code: 8B - Non-combustible corrosive hazardous materials
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves