Melting point standards regularly calibrate analog or digital apparatuses to guarantee reliable identity and purity determinations. Thermometer, capillary tube, or heater parameters often experience equipment failure that would cause phase changing results to fall outside acceptable limits. If the melting point differs from the reference substance predetermined range, the error indicates that equipment adjustments are necessary. Used in pharmaceuticals, the ground melting point standards promote consistent drug manufacturing for consumer satisfaction and department regulations.
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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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 standard, vanillin, pharmaceutical secondary standard, Supelco®
Supplier: Merck
Vanillin, Melting pt.: ∼82 °C
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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 standard, phenyl salicylate
Supplier: Merck
Mettler-Toledo calibration substance ME 30034252, traceable to primary standards.
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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 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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Acetanilide 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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Potassium Nitrate 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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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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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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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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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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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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DSC calibration standard, benzoic acid
Supplier: LGC Standards PROMOCHEM
Benzoic acid, Melting pt.: 122.35 °C