Description

Chloride Standard CAS NO 16887-00-6 is a high-purity analytical reference material used for the precise calibration and validation of instruments in quantitative analysis. This certified standard is essential for ensuring measurement accuracy, traceability, and compliance in quality control and research laboratories. It is a critical reagent for professionals in pharmaceutical development, environmental monitoring, food safety testing, and industrial process control who require reliable and consistent calibration data.

Application

• Instrument Calibration: Primary standard for calibrating ion-selective electrodes (ISE), potentiometric titrators, and chloride-specific analyzers.
• Pharmaceutical QC: Used in assay and impurity testing of drug substances and finished products, ensuring compliance with pharmacopeial standards (USP, EP).
• Environmental Analysis: Critical for the accurate determination of chloride ion concentration in water, wastewater, and soil samples as per EPA and other regulatory methods.
• Food & Beverage Testing: Employed in the analysis of salt (sodium chloride) content, preservatives, and overall mineral composition in foodstuffs.
• Clinical Diagnostics: Serves as a calibrator for automated analyzers measuring chloride levels in blood serum, urine, and other bodily fluids.
• Material Science & Corrosion Studies: Used to prepare standard solutions for testing the chloride resistance of concrete, metals, and coatings.
• Research & Development: Provides a definitive reference point in method development and validation for academic and industrial R&D projects.

Basic Information

Item	Detail
Product Name	Chloride Standard
CAS No.	16887-00-6
Molecular Formula	Cl- (as a standard solution, typically with a defined counter-ion like Na+)
Molecular Weight	35.45 g/mol (Cl-)
Synonyms	Chloride Ion Standard; Chloride Calibration Standard; Chloride Reference Material; Sodium Chloride Standard Solution; Chloride Volumetric Standard; Chloride CRM (Certified Reference Material); Aqueous Chloride Standard; Chloride Standard for IC (Ion Chromatography).
EINECS	Contact for details

Quality Control

Every batch of our Chloride Standard is manufactured and certified under a strict quality management system. The material is characterized for identity, purity, and concentration using traceable methods such as gravimetry and potentiometric titration against primary standards. We provide comprehensive Certificates of Analysis (COA) that include batch-specific data, measurement uncertainty, and traceability to national standards (e.g., NIST). Our quality commitment ensures the material is suitable for calibration, method validation, and compliance testing in regulated environments.

Storage

Preserve in a tightly closed container, protected from light. Store at a controlled room temperature (15-25°C). Avoid prolonged exposure to high temperatures and humidity. Ensure the container is securely sealed to prevent evaporation or contamination.

Specification

Item	Specification
Appearance	Clear, colorless solution
Identification (IR / Titration)	Conforms
Assay (as Cl-)	99.0% - 101.0% of stated concentration
Concentration	Typically 1000 mg/L or 1000 ppm (custom concentrations available)
Matrix	Aqueous (High-purity water or specified solvent)
pH	As specified per grade (e.g., 5.0 - 7.0)
Trace Metals (ICP-MS)	< 0.1 mg/L
Expiry Date	Clearly labeled on certificate and container

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.