Hazen 500 Units-500ml
Hazen 500 Units is a standard reference solution used for measuring the color of water and other liquids according to the Hazen (APHA Platinum-Cobalt) scale. It provides a reproducible reference for determining water color intensity in water quality testing and laboratory analyses.
Chemical Name:
Platinum-Cobalt Color Standard Solution (Hazen Units)
Synonyms:
Hazen Color Standard, Platinum-Cobalt Standard, APHA Color Standard, Platinum-Cobalt Solution
CAS Number:
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Potassium Hexachloroplatinate(IV): 16919-27-0
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Cobalt Chloride: 7646-79-9
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Water: 7732-18-5
Appearance:
Clear, amber-yellow aqueous solution
Key Properties:
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Standardized to 500 Hazen units (500 mg Pt/L as platinum)
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Provides consistent color reference for water analysis
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Stable under normal laboratory conditions
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Compatible with visual and photometric color determination methods
Uses:
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Determination of water color in drinking water, wastewater, and industrial water
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Calibration of photometers or colorimeters
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Quality control and environmental water testing
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Laboratory teaching and reference purposes
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Standard for APHA, ISO, and ASTM color determination methods
Storage:
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Store in a cool, dry, dark place
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Keep container tightly closed
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Protect from light to prevent degradation
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Avoid contamination and exposure to strong oxidizers
Safety & Handling (SDS Summary):
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May cause mild skin or eye irritation
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Avoid ingestion and inhalation
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Use gloves, goggles, and standard laboratory PPE
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Wash hands thoroughly after handling
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In case of contact, rinse with plenty of water
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Generally considered low hazard under normal laboratory use
| Weight | 1 kg |
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