1.00546

meta-Phosphoric acid

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

• 别名: Metaphosphoric acid, m-Phosphoric acid
• 分類程式碼代碼: 12352301
• NACRES: NA.21

属性

• 蒸汽壓力: <0.001 hPa ( 20 °C)
• 品質等級: 300
• 產品線: EMSURE^®
• 形狀: solid
• 成份: HPO<SUB>3</SUB>, 40-50% acidimetric ; NaPO<SUB>3</SUB>, 50-60% acidimetric
• 雜質: ≤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值: 2 (20 °C, 33 g/L in H₂O)
• bp: 600 °C/1013 hPa
• mp: 200-250 °C
• 密度: 2.0 g/cm³ at 20 °C
• 體積密度: 1000 kg/m³
• 儲存溫度: 2-30°C

说明

應用

• 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).

分析報告

Assay (acidimetric, HPO₃): 40 - 50 %
Assay (acidimetric, NaPO₃): 50 - 60 %
Identity: passes test
Chloride (Cl): ≤ 10 ppm
Nitrate (NO₃): ≤ 5 ppm
Reducing matter (as H₃PO₃): ≤ 100 ppm
As (Arsenic): ≤ 1 ppm
Cd (Cadmium): ≤ 10 ppm
Co (Cobalt): ≤ 5 ppm
Cu (Copper): ≤ 10 ppm
Fe (Iron): ≤ 50 ppm
Mn (Manganese): ≤ 5 ppm
Ni (Nickel): ≤ 10 ppm
Pb (Lead): ≤ 10 ppm
Zn (Zinc): ≤ 10 ppm

法律資訊

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

安全信息

• 象形圖: GHS05
• 訊號詞: Danger
• 危險聲明: H314
• 防範說明: P260 - P280 - P301 + P330 + P331 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• 危險分類: Eye Dam. 1 - Skin Corr. 1
• 儲存類別代碼: 8B - Non-combustible, corrosive hazardous materials
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable