An interesting chemical engineer
HEDP•K₂ is a highly effective scale and corrosion inhibitor widely used in oilfield operations, particularly in production wells, water injection systems, and hydraulic fracturing (fracking). Its potassium (K⁺) form offers better solubility and compatibility in high-salinity brines compared to sodium salts (e.g., HEDP•Na₄). 1. Primary Applications in Oil Fields (1) Scale Inhibition in Production Wells Prevents carbonate (CaCO₃)…
BTA•Na (Sodium Benzotriazole) is widely used as a corrosion inhibitor, especially for copper and its alloys. Its stability varies with temperature, pressure, and environmental conditions. Below is a detailed breakdown: 1. Thermal Stability (Temperature Effects) Room Temperature (20–25°C) Highly stable in solid form (powder/crystals) if kept dry and sealed. Aqueous solutions (e.g., 10–40% concentration): Stable for 6–12 months if pH…
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HEDP is a widely used phosphonate scale and corrosion inhibitor, with key producers located in China, Europe, and North America. Below is a list of leading HEDP manufacturers, categorized by region. Shandong Kairui Chemistry Co., Ltd.(Subsidiary: Zaozhuang Kairui Water Treatment Co.,Ltd.) Key Products: HEDP (solid/liquid), ATMP, PBTC, DTPMPA Capacity: 50,000+ tons/year (phosphonates) Certifications: ISO 9001, REACH, NSF…
HPAA is a widely used green scale inhibitor in water treatment, known for its excellent calcium carbonate inhibition and high-temperature stability. Below are the leading Chinese manufacturers of HPAA. Focusing on the research, development and production of water treatment chemicals, HPAA is one of its core products. Shandong Kairui Chemistry Co., Ltd.(Subsidiary: Zaozhuang Kairui Water…
PBTC is a high-performance phosphonate-based scale and corrosion inhibitor widely used in daily chemical products due to its excellent chelation ability, thermal stability, and compatibility with other ingredients. Below are its primary applications in household and personal care products: 1. Laundry Detergents & Fabric Care Function: Prevents scale buildup (e.g., CaCO₃, Mg²⁺) in washing machines and on fabrics. Enhances detergent…
When handling HPAA (Hydroxyphosphonoacetic Acid), safety precautions are essential due to its acidic nature and potential irritant properties. Here are the key measures to follow: 1. Personal Protective Equipment (PPE) Skin Protection: Wear chemical-resistant gloves (e.g., nitrile or neoprene). Use long-sleeved clothing and aprons to avoid splashes. Eye/Face Protection: Safety goggles or a face shield to prevent splashes. Respiratory Protection: If handling powder or aerosols,…
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The purity of Amino Trimethylene Phosphonic Acid (ATMP) can be tested using several analytical methods, depending on the required precision and available equipment. Below are the most common testing methods: 1. Titration Methods (1) Potentiometric Titration (Standard Method) Principle: ATMP reacts with Zn²⁺ (zinc sulfate) in a pH 10 buffer (ammonia-ammonium chloride). The endpoint is detected by a pH/metal ion-selective electrode….
Application: Scale inhibition & dispersion in cooling water, boilers, RO systems, and oilfield operations. 1. Recommended Dosage Application Dosage (mg/L) Key Target Scales Cooling Water 5–20 CaCO₃, CaSO₄, Fe₂O₃ Boiler Water 10–30 Ca₃(PO₄)₂, MgSiO₃ Reverse Osmosis (RO) 2–10 CaCO₃, BaSO₄, silica Oilfield Injection 10–50 BaSO₄, SrSO₄ (squeeze treatments) Note: Adjust dosage based on water hardness, pH,…
PASP (Polyaspartic Acid) is a biodegradable, non-toxic, and highly effective green alternative to traditional scale and corrosion inhibitors like phosphonates (HEDP, ATMP) and synthetic polymers (PAA, HPMA). Below are its key advantages: 1. Environmental & Safety Benefits ✅ Fully Biodegradable (>60% in 28 days per OECD 301B) – Unlike persistent phosphonates (HEDP/ATMP). ✅ Non-Toxic (EC50 >100 mg/L for aquatic…
Judging the quality of MBT (2-Mercaptobenzothiazole) products requires evaluating chemical purity, physical properties, performance efficacy, and compliance with industry standards. Below is a comprehensive guide: 1. Chemical Purity & Composition Key Parameters Active Content: High-quality MBT should have ≥ 95% purity (industrial-grade) or ≥ 98% (rubber-grade). Impurities: Free sulfur (should be < 0.5%) Residual solvents (e.g., toluene, cyclohexylamine) Heavy metals (e.g.,…