Citric Acid Stainless Steel Passivation
Citric acid passivation agent provides a safe, environmentally friendly alternative to nitric acid for passivating stainless steel components, removing free iron contamination and establishing a dense chromium oxide passive layer. The citric acid chelates iron ions from the surface without attacking the base alloy, resulting in a pristine, corrosion-resistant passive film compliant with ASTM A967 and AMS 2700 standards. It is preferred in food processing, pharmaceutical, and semiconductor industries where nitric acid fumes and waste streams are undesirable.
Teknik Özellikler
| pH | 2.0-3.5 (working solution) |
| appearance | White crystalline solid or clear liquid concentrate |
| purity (%) | ≥99.5 |
| active content (%) | ≥99.5 |
| process temperature (°C) | 49-71 |
Uygulama Alanları
- Stainless steel fabrication passivation (ASTM A967 compliant)
- Food processing and dairy equipment stainless steel passivation
- Pharmaceutical and biomedical device passivation
- Semiconductor and clean room equipment surface treatment
- Marine and chemical plant stainless steel component passivation
Ürün Özellikleri
- Safe, non-fuming alternative to nitric acid passivation
- ASTM A967 and AMS 2700 compliant passivation results
- Food grade and pharmaceutical grade available
- No hazardous NOx fumes or difficult waste streams generated