Smältpunktsstandarder
Smältpunktsstandarder kalibrerar regelbundet analoga eller digitala apparater för att säkerställa tillförlitliga bestämningar av identitet och renhet. Termometer-, kapillär- eller värmeparametrar kan drabbas av utrustningsfel som gör att fasomvandlingsresultat hamnar utanför acceptabla gränser. Om smältpunkten skiljer sig från referenssubstansens förutbestämda intervall indikerar felet att justeringar av utrustningen är nödvändiga. Inom läkemedelsindustrin används smältpunktsstandarder för att främja en konsekvent läkemedelstillverkning för konsumentnöjdhet och efterlevnad av myndighetskrav.
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).
Expand 1 Items
Melting point standards, methyltriphenylphosphoniumbromide, traceable to primary standards, Supelco®
Supplier: Merck
Mettler-Toledo Calibration substance ME 30130598, Methyltriphenylphosphoniumbromide, tracable to primary standards (LGC).
Expand 1 Items
Melting point standard, phenyl salicylate
Supplier: Merck
Mettler-Toledo calibration substance ME 30034252, traceable to primary standards.
Expand 1 Items
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.
Expand 2 Items
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).
Expand 1 Items
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).
Expand 1 Items
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).
Expand 1 Items
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.
Expand 1 Items
Melting point standard, vanillin, pharmaceutical secondary standard, Supelco®
Supplier: Merck
Vanillin, Melting pt.: ∼82 °C
Expand 1 Items
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.
Expand 1 Items
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.
Expand 1 Items
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.
Expand 1 Items
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.
Expand 1 Items
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.
Expand 1 Items
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.
Expand 1 Items
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.
Expand 18 Items
Recommendations will be personalized based on your shopping preferences only if you have given your consent by enabling "Enhance my Shopping Experience" on the "Personal Info page".
Otherwise, you will receive generic recommendations.
Catalog #: 83639.320
Leverantör: VWR Chemicals
Catalog #: 20864.320
Leverantör: VWR Chemicals
Catalog #: 83640.320
Leverantör: VWR Chemicals
Catalog #: 31770.294
Leverantör: VWR Chemicals
Catalog #: 1.00030.2500
Leverantör: Merck
Catalog #: 83645.320
Leverantör: VWR Chemicals