Standaarden voor smeltpuntbepaling
Smeltpuntstandaarden kalibreren regelmatig analoge of digitale apparaten om betrouwbare bepalingen van identiteit en zuiverheid te garanderen. Parameters van thermometers, capillaire buisjes of verwarmers kunnen defect raken, waardoor de faseovergangsresultaten buiten de aanvaardbare grenzen vallen. Wanneer het smeltpunt afwijkt van het vooraf bepaalde bereik van de referentiestof, geeft de fout aan dat aanpassingen aan de apparatuur nodig zijn. Gebruikt in de farmaceutische industrie bevorderen smeltpuntstandaarden een consistente geneesmiddelenproductie voor consumententevredenheid en naleving van voorschriften.
Melting point standards, sodium methanesulfonate, traceable to primary standards, Supelco®
Supplier: Merck
Mettler-Toledo Calibration substance ME 30130610, Sodium methanesulfonate, traceable to primary standards (LGC).
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Melting point standards, methyltriphenylphosphoniumbromide, traceable to primary standards, Supelco®
Supplier: Merck
Mettler-Toledo Calibration substance ME 30130598, Methyltriphenylphosphoniumbromide, tracable to primary standards (LGC).
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Melting point standard, phenyl salicylate
Supplier: Merck
Mettler-Toledo calibration substance ME 30034252, traceable to primary standards.
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Melting point standard, benzophenone, Supelco®
Supplier: Merck
Melting point standards are used to identify compounds and estimate purity. These standards can be used with any melting point apparatus.
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Melting point standards, potassium nitrate, traceable to primary standards, Supelco®
Supplier: Merck
Mettler-Toledo Calibration substance ME 51143095, Potassium nitrate, traceable to primary standards (LGC).
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Melting point standards, sodium acetate anhydrous, traceable to primary standards, Supelco®
Supplier: Merck
Mettler-Toledo Calibration substance ME 30130599, Sodium acetate anhydrous, tracable to primary standards (LGC).
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Melting point standards, p-Toluamide, traceable to primary standards, Supelco®
Supplier: Merck
Mettler-Toledo Calibration substance ME 30130597, p-Toluamide, traceable to primary standards (LGC).
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Caffeine Melting Point Standard (Approximately 236 degrees), Reference Standard
Supplier: USP
USP Reference Standards are specified for use in conducting official USP–NF tests and assays. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.
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Melting point standard, vanillin, pharmaceutical secondary standard, Supelco®
Supplier: Merck
Vanillin, Smeltpunt: ∼82 °C
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Vanillin Melting Point Standard (Approximately 82 degrees), Reference Standard
Supplier: USP
USP Reference Standards are specified for use in conducting official USP–NF tests and assays. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.
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Succinic Acid Melting Point Standard, Reference Standard
Supplier: USP
USP Reference Standards are specified for use in conducting official USP–NF tests and assays. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.
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Phenacetin Melting Point Standard (Approximately 135 degrees), Reference Standard
Supplier: USP
USP Reference Standards are specified for use in conducting official USP–NF tests and assays. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.
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Sulfanilamide Melting Point Standard (Approximately 165 degrees), Reference Standard
Supplier: USP
USP Reference Standards are specified for use in conducting official USP–NF tests and assays. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.
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Theophylline Melting Point Standard (Approximately 271 degrees), Reference Standard
Supplier: USP
USP Reference Standards are specified for use in conducting official USP–NF tests and assays. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.
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Phenyl Salicylate Melting Point Standard (Approximately 41 degrees), Reference Standard
Supplier: USP
USP Reference Standards are specified for use in conducting official USP–NF tests and assays. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.
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VWR®, Melting point standards
Supplier: VWR Chemicals
These standards can be used with any melting point apparatus and are prepared using pure raw materials. Melting points are determined using a high accuracy Differential Scanning Calorimeter (DSC) system that is calibrated to the ITS 90 International Temperature Scale.
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#: 20864.320
: VWR Chemicals
#: 215-1592
: VWR Collection
#: 83640.320
: VWR Chemicals
#: 31770.294
: VWR Chemicals
#: 83645.320
: VWR Chemicals