1.00546

Acide méta-phosphorique

pieces for analysis (stabilized with sodium metaphosphate) EMSURE^®

• Synonyme(s) : Acide métaphosphorique, Acide m-phosphorique
• Code UNSPSC : 12352301
• Nomenclature NACRES : NA.21

Propriétés

• Pression de vapeur: <0.001 hPa ( 20 °C)
• Niveau de qualité: 300
• Gamme de produits: EMSURE^®
• Forme: solid
• Composition: HPO<SUB>3</SUB>, 40-50% acidimetric ; NaPO<SUB>3</SUB>, 50-60% acidimetric
• Impuretés: ≤1 ppm As (Arsenic); ≤10 ppm Cd (Cadmium); ≤10 ppm Chloride (Cl); ≤10 ppm Cu (Copper); ≤10 ppm Ni (Nickel); ≤10 ppm Pb (Lead); ≤10 ppm Zn (Zinc); ≤100 ppm Reducing matter (as H₃PO₃); ≤5 ppm Co (Cobalt); ≤5 ppm Mn (Manganese); ≤5 ppm Nitrate (NO₃); ≤50 ppm Fe (Iron)
• pH: 2 (20 °C, 33 g/L in H₂O)
• Point d'ébullition: 600 °C/1013 hPa
• Pf: 200-250 °C
• Densité: 2.0 g/cm³ at 20 °C
• Masse volumique apparente: 1000 kg/m³
• Température de stockage: 2-30°C

Description

Application

• Impact of pH and application time of meta-phosphoric acid on resin-enamel and resin-dentin bonding.: This study examines the effects of varying pH levels and application durations of meta-phosphoric acid on the bonding properties between resin and dental tissues. Meta-phosphoric acid demonstrates varying efficacy in enhancing adhesive characteristics, crucial for dental restorations (Cardenas AFM et al., 2018).


• Dicalcium phosphate (CaHPO4·2H2O) precipitation through ortho- or meta-phosphoric acid-etching: effects on the durability and nanoleakage/ultra-morphology of resin-dentine interfaces.: This publication explores how ortho- and meta-phosphoric acid etching influences the precipitation of dicalcium phosphate in dental applications, particularly focusing on its impact on the durability of resin-dentine interfaces and potential implications for dental repair longevity (Feitosa VP et al., 2013).


• Simultaneous determination of ascorbic acid, aminothiols, and methionine in biological matrices using ion-pairing RP-HPLC coupled with electrochemical detector.: This study details a method leveraging reverse-phase high-performance liquid chromatography to analyze ascorbic acid alongside other compounds, with meta-phosphoric acid used to stabilize the samples during the analytical process, highlighting its application in precise biochemical measurements (Khan MI et al., 2011).


• Extraction, chemical characterization and biological activity determination of broccoli health promoting compounds.: This research utilized meta-phosphoric acid in the extraction processes for analyzing the chemical properties and biological activities of health-promoting compounds in broccoli, demonstrating the acid′s utility in food science and nutritional analysis (Ares AM et al., 2013).

Remarque sur l'analyse

Dosage (acidimétrie, HPO₃) : 40 % à 50 %
Dosage (acidimétrie, NaPO₃) : 50 % à 60 %
Identité : test réussi
Chlorures (Cl) : ≤ 10 ppm
Nitrates (NO₃) : ≤ 5 ppm
Substances réductrices (exprimées en H₃PO₃) : ≤ 100 ppm
As (arsenic) : ≤ 1 ppm
Cd (cadmium) : ≤ 10 ppm
Co (cobalt) : ≤ 5 ppm
Cu (cuivre) : ≤ 10 ppm
Fe (fer) : ≤ 50 ppm
Mn (manganèse) : ≤ 5 ppm
Ni (nickel) : ≤ 10 ppm
Pb (plomb) : ≤ 10 ppm
Zn (zinc) : ≤ 10 ppm

Informations légales

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Informations sur la sécurité

• Pictogrammes: GHS05
• Mention d'avertissement: Danger
• Mentions de danger: H314
• Conseils de prudence: P260 - P280 - P301 + P330 + P331 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Classification des risques: Eye Dam. 1 - Skin Corr. 1
• Code de la classe de stockage: 8B - Non-combustible, corrosive hazardous materials
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable