1.02410

炭酸カルシウム

volumetric standard, secondary reference material for complexometry, traceable to NIST Standard Reference Material (SRM) Certipur^® Reag. USP

• 化学式: CaCO₃
• CAS番号: 471-34-1
• 分子量: 100.09
• Beilstein: 8008338
• MDL番号: MFCD00010906
• UNSPSCコード: 41116107
• EC Index Number: 207-439-9
• NACRES: NA.24

特性

• 認証: ISO 17025; reag. USP
• 品質水準: 300
• 形状: solid
• 有効性: 6450 mg/kg LD₅₀, oral (Rat); >2000 mg/kg LD₅₀, skin (Rat)
• テクニック: titration: suitable
• pH: 9.5-10.5 (20 °C, 100 g/L in H₂O, slurry)
• mp: 825 °C (decomposition)
• 密度: 2.93 g/mL at 25 °C (lit.)
• かさ密度: 300‑1400 kg/m³
• 保管温度: 15-25°C
• SMILES記法: [Ca++].[O-]C([O-])=O
• InChI: 1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
• InChI Key: VTYYLEPIZMXCLO-UHFFFAOYSA-L

詳細

詳細

Calcium carbonate volumetric standard is manufactured under stringent conditions and measured with the highest possible precision. Its mass fraction is determined by potentiometric titration, and it is qualified in a DIN EN ISO/IEC 17025 accredited laboratory.

Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.

アプリケーション

It finds its use as a certified reference material (CRM) for the standardization of volumetric solutions in complexometric titrations, according to USP and Ph. Eur.

特徴および利点

• Available as a solid in a secure glass bottle to ensure its stability for the entire shelf life until opened.
• Certified reference material according to ISO 17034
• High-purity material traceable to NIST SRMs
• Qualified in a DIN EN ISO/IEC 17025 accredited laboratory
• In accordance with the chapter reagents of USP and Ph. Eur
• High-quality offering accurate titer determinations
• Accompanied by a certificate of analysis (CoA)

包装

SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals

法的情報

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

安全性情報

• 保管分類コード: 13 - Non Combustible Solids
• WGK: nwg
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable