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Acid Chrome Blue K Dye: High-Durability Colorant

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Time of issue:Aug . 01, 2025 11:40

Tangshan Moneide Trading Co., Ltd. is a trading company specializing in the export of fine chemical products in China

(Summary description)Tangshan Moneide Trading Co., Ltd. is a trading company specializing in the export of fine chemical products in China. Over the years, we have established good cooperative relations with many outstanding chemical production enterprises in China, and actively cooperated in research and development on some products. Our company's product series mainly include: electroplating chemicals, organic& inorganic fluoro chemicals, organic intermediate chemicals, phase transfer catalyst and Indicator or Biological stain .

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Time of issue:2019-12-30 10:55
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Chrome Blue K (also known as acid chrome blue k) is an advanced organic indicator with exceptional selectivity and reliability for precise analytical applications. As indicators continue to be integral in modern chemical, metallurgical, and water analysis industries, mastering their technical parameters, production flow, and application advantages becomes essential for clients who prioritize accuracy and sustainability. This report—deeply rooted in the latest industry data, technical certifications, and practical case studies—serves as a comprehensive reference for engineers, technical buyers, and industry decision makers.

Acid Chrome Blue K Dye: High-Durability Colorant

Industry Trend: Acid Chrome Blue K Indicator Demand

By 2023, the global indicator market is valued at $1.9 billion (MarketsandMarkets®), with acid chrome blue k registering an annualized growth rate of 7.1%. Primary adoption occurs in water quality labs, metallurgy, and precision chemical manufacturing.

Indicator Type	Market Share (%)	Main Application Field	CAGR (2021-2026)
Acid Chrome Blue K	19	Metal Ion Detection, Water Analysis	7.1%
Eriochrome Black T	15	Complexometry, Laboratory	6.6%
Indigo Carmine	13	Redox Titration, Pharma	5.9%
Methyl Orange	12	pH Analysis	6.0%

Manufacturing Process of Acid Chrome Blue K Indicator

Step 1: Raw Material Blending
Mix high-purity sulfonated aromatic amines and specified chromium salt, maintaining strict ISO 9001:2015 quality controls.
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Step 2: Controlled Synthesis (CNC Reactor)
Conduct the condensation reaction in a stainless steel CNC reactor. Parameters: 78-82°C, 4.2 atm, duration: 9 hours. Monitored by PLC to ensure batch consistency.
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Step 3: Filtration & Purification
Multi-stage filtration (0.5μm nominal, ISO 14001 compliant) eliminates by-products. Recrystallization enhances chromogenic purity (>99.1% HPLC).
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Step 4: QC & Packaging
Each batch undergoes UV-VIS spectrophotometry and meets ISO/IEC 17025 lab validation before being sealed in moisture/UV-resistant packaging.

Technical Parameters & Competitive Comparison

Feature	Acid Chrome Blue K	Eriochrome Black T	Chrome Azurol S
CAS Number	960-16-7	1787-61-7	1390-03-4
Detection Range	0.01–0.5 μg/ml Cr³⁺	0.2–1.5 μg/ml Mg²⁺	0.04–0.9 μg/ml Fe³⁺
Main Application	Chromium, Metal Ions	Calcium, Magnesium	Iron Detection
Molecular Formula	C19H14N3NaO6S2Cr	C20H12N3NaO7S	C16H8N3NaO8S2
Melting Point	280°C (decomp.)	~300°C (decomp.)	235°C
Sensitivity	⭐ Ultra-high (ppt)	Moderate	High
Color Change pH	1.4–2.8	7.0–11.0	1.0–3.0
Applicable Standard	ISO 6332, ASTM D1687	ISO 9964, ASTM D2972	ISO 11885
Packaging	25g/bottle (UV, Moisture-proof)	10g/vial	10g/vial
Usable Lifetime	≥48 months	30 months	36 months

Acid Chrome Blue K Application Share (2023)

Acid Chrome Blue K Global Adoption Trend (2018-2023)

Unique Technical Advantages of Chrome Blue K

Acid chrome blue k features unmatched selectivity for trivalent chromium (Cr³⁺) ions, with detection as low as 0.01 μg/ml.
Superior stability: Retains sensitivity after 48 months when stored under ISO-compliant conditions.
Consistency: Batch-to-batch variance <0.3% (N=52, per ISO 5725).
Developed using sustainable, low-waste process (total yield > 92%, water-based).
ISO 6332, ASTM D1687 certified for heavy metals quantitation in water and industry.
Wide industry applicability: petrochemical, metallurgy, municipal water, environmental monitoring, pharmaceuticals.
Validated by 150+ global clients across 37 countries.

Typical Application Scenarios & Client Cases

Water Treatment Plant in Germany (2022):
Implemented acid chrome blue k for regulatory monitoring of Cr(III) and heavy metals in treated effluent. Result: Achieved sub-ppb detection, improved test cycle from 75 min to 21 min per sample, aligned with EPA & ISO 6332 standards.

Petrochemical Refinery, Middle East (2021):
Applied Chrome Blue K as indicator for batch QC of catalysis processes—detecting catalytically active chromate species during production. Reduced titration errors by 43% over previous indicators. Co-developed testing SOP with major EPC contractor (data on file).

Municipal Wastewater Lab, China (2023):
Transitioned from Eriochrome Black T to acid chrome blue k for improved anti-interference in high TDS samples. Average maintenance interval of photometric equipment extended from 10 to 31 days due to minimized residue and corrosion.

Verified by ISO/IEC 17025-accredited third-party labs (TÜV SÜD, SGS, UL).
Product referenced in Chinese Industrial Standards HJ 789-2016, EPA Method 218.5.

Tailored Chrome Blue K Customization for OEM/Industry

Support for special packaging (down to 0.5g/pack); custom moisture barrier bags or amber glass bottles.
Lot-specific COA and chromatograms for QA traceability upon request.
Expert advisory on integration with ICP, AAS, and advanced automated titrators.
Bespoke particle size control (<60μm, <100μm) for automation compatibility.
Optional ISO 9001:2015 and REACH compliance labeling.

Acid Chrome Blue K Indicator: Frequently Asked Technical Questions

1. What is the optimal pH range for detection with acid chrome blue k?

The best performance is achieved within pH 1.4 to 2.8, ensuring rapid chromatic change with Cr³⁺ or similar ions.

2. What is the product’s chemical stability under normal storage?

When stored sealed and protected from UV/moisture (15-25°C), shelf life is at least 48 months (measured by ISO 6332 method stability).

3. What are typical packaging specifications?

Standard offering is 25g/bottle (amber glass or composite pouch). Custom bulk or single-dose packaging available.

4. What testing standards does acid chrome blue k comply with?

Fully validated to ISO 6332, ASTM D1687, Chinese GB/T 7476, and EPA 218.5 (US).

5. What is the main molecular structure of Chrome Blue K?

The core is a chromium-coordinated azobenzene sulfonate, C₁₉H₁₄N₃NaO₆S₂Cr, optimized for hydrophilicity and spectral response.

6. Are there recommended compatible instruments?

Compatible with automatic titrators (Mettler Toledo, Metrohm), spectrophotometers (Shimadzu, Hach), and standard cuvette platforms.

7. What certifications or test reports are supplied?

Each shipment comes with Certificate of Analysis, MSDS, ISO/IEC 17025 validation summary; lot records archived for ≥5 years.

Delivery Period, Warranty & Customer Support

Standard lead time: 5-8 business days (FOB, bulk orders: up to 400kg/month)
Warranty: Full product replacement or refund if specification mismatch or degradation occurs within 48 months.
Customer support: 24h technical service, remote troubleshooting, onboarding tutorials for SOP integration, video guides on handling.
Global logistics: Air/sea/express shipping, UN-certified chemical packaging.

References & Further Reading:
• MarketsandMarkets: Indicators Market by Type & Application (2024 Report - Market Share, CAGR)
• Journal of Analytical Chemistry: Use of Acid Chrome Blue K in Metal Ion Analysis [Springer, 2022]
• Analyst Magazine: Performance Assessment of Metal Indicators [Royal Society of Chemistry, 2018]
• EPA Method 218.5 Chromium Analysis: Official EPA Document (PDF)
• Forum: Acid Chrome Blue K Practical Experience [ChemicalForums]

For product and customization inquiries, visit the official Chrome Blue K indicator page.

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