Table of Contents
- Product Overview
- Specifications & Comparison
- Detailed Applications
- Usage Guidelines
- Industry Case Studies
- Contact for Quotation
Product Overview
Potassium Chromate (CAS 7789-00-6) and Ferrous Ammonium Sulfate are essential chemical compounds with distinct roles in industrial and laboratory applications. This guide focuses on their technical specifications, synergistic uses, and market-proven performance.
Key Parameters
| Parameter | Potassium Chromate | Ferrous Ammonium Sulfate |
|---|---|---|
| CAS Number | 7789-00-6 | 10045-89-3 (Hexahydrate) |
| Molecular Formula | K2CrO4 | Fe(NH4)2(SO4)2·6H2O |
| Purity Grade | ACS Reagent (≥99%) | Analytical Grade (≥99.5%) |
| Density | 2.732 g/cm³ | 1.86 g/cm³ |
Specifications & Comparison
| Feature | Potassium Chromate | Competitor A | Competitor B |
|---|---|---|---|
| Chromium Content | 40.1% ±0.3 | 38.9% ±1.2 | 39.4% ±0.8 |
| Sulfate Limit | <0.001% | 0.005% | 0.003% |
| Heavy Metals | <5 ppm | 15 ppm | 8 ppm |
Detailed Applications
Analytical Chemistry
As redox indicators in titrations: Potassium Chromate serves as endpoint indicator for chloride determination (Mohr method), while Ferrous Ammonium Sulfate acts as reducing agent in dichromate titrations.
Metal Treatment
Used in zinc coating processes for corrosion resistance enhancement. Optimal concentration range: 2-5 g/L in electrolyte solutions.
Usage Guidelines
Storage Conditions
- Temperature: 15-30°C (Potassium Chromate)
- Humidity: <40% RH (Ferrous Ammonium Sulfate)
Industry Case Studies
Case 1: Electroplating Solutions Ltd.
Challenge: Chromium layer inconsistency in aerospace components
Solution: Implemented 3.8% Potassium Chromate bath with pH 4.2 control
Result: 92% coating uniformity improvement
Case 2: Environmental Testing Lab
Challenge: COD measurement variability in wastewater
Solution: Standardized Ferrous Ammonium Sulfate titration protocol
Result: Achieved 0.98 method correlation coefficient
Contact for Quotation
Request technical datasheets or bulk pricing:
Email: info@vivalr.com
Tel: (86) 15866781826
Expert Support: Our chemical engineers provide free application consultation for orders above 500kg.
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