Search Results

USP sodium chloride Loss on Drying is performed by drying a 1.000 g sample at 105 °C for 2 hours and calculating the percent weight loss; the monograph limit is not more than 0.5% loss. Loss on Drying Overview What the test measures Loss on Drying determines t...

In the USP sodium chloride monograph, the Limit of phosphates test is an impurity test that checks that phosphate ions—present as a trace contaminant—are below a very low specified level. A test solution of sodium chloride is treated with acid and ammonium mol...

Identification Tests The United States Pharmacopeia (USP) specifies two primary identification tests for Sodium Chloride to confirm the presence of both sodium and chloride ions. These tests are essential for verifying the identity of the material before furth...

Summary of the USP sodium chloride Assay The Assay in the USP sodium chloride monograph is a quantitative argentometric titration that determines the actual content of NaCl in the sample. Purpose: Confirm that bulk sodium chloride contains 99.0%–100.5% NaCl ...

Limit of Iodides — Summary Purpose: Verify that soluble iodide in sodium chloride does not exceed the pharmacopeial limit (no more than 0.01% iodide). Principle: Iodide in the sample is converted to free iodine under acidic, nitrosating conditions and then det...

Step-by-Step Instructions Prepare the sample solution as specified. Add pH 4.7 phenol red TS and chloramine T solution. Mix immediately and wait exactly 2 minutes. Add sodium thiosulfate to stop the reaction. Measure the absorbance at 590 nm using UV...

Uses fluorescence spectroscopy after extraction with a chelating agent. Step-by-Step Instructions Dissolve 20.0 g of Sodium Chloride in 100 mL of water and add pH 6.0 acetate buffer. Extract the solution three times with a 0.5% solution of 8-hydroxyquinoli...

Summary of the USP “Limit of barium” test for sodium chloride The Limit of barium test in the USP sodium chloride monograph is a qualitative limit test designed to ensure that sodium chloride contains no more than a trace amount of soluble barium salts. Pur...

Limit of Iron Summary Purpose: Verify iron content does not exceed the specified limit. Principle: The monograph describes reduction and complexation steps that produce a colored species which is compared to a blank or limit standard; absence of color beyond t...

Magnesium and Alkaline Earth Metals Limit Test — Summary Purpose: Verify that the combined content of magnesium and other alkaline earth metals in sodium chloride is below the pharmacopeial limit. Principle: The test is a complexometric EDTA titration at pH 10...

Ferrocyanides Limit Test — Summary Purpose: The ferrocyanides limit test for Sodium Chloride checks that ferrocyanide/ferrocyanide-derived cyanide species are not present at levels that produce a visible blue complex when reacted with iron(III). Acceptance: th...

USP 〈467〉 classifies solvents into Class 1 (to be avoided), Class 2 (to be limited), and Class 3 (low toxic potential) and prescribes headspace GC procedures (A, B, C) for screening, confirmation, and quantification of residual solvents. Testing is required on...

Tony (IT Department Visionary, Fashion Catastrophe, Accidental Icon) Tony (born sometime during a server outage) is a legendary IT technician at an unnamed pharmaceutical company who rose to global prominence after appearing—controversially, confusingly, and ...