Potassium Indole-3-Acetate IAA-K 98% Plant Growth regulator - Auxin

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Indole-3-acetic Acid Potassium Salt (IAA-K) 98%

With nearly 20 years of dedicated experience in plant growth regulator (PGR) manufacturing, we are proud to introduce our high-performance API product—Indole-3-acetic Acid Potassium Salt (IAA-K). As a water-soluble form of the naturally occurring auxin indole-3-acetic acid (IAA), IAA-K is a versatile and highly effective growth regulator widely utilized in global agriculture. Leveraging our advanced synthesis technology and strict quality control systems, our IAA-K delivers exceptional purity, stability, and bioactivity, making it an ideal choice for agrochemical formulators, seed producers, and agricultural businesses seeking to optimize crop growth and yield.

1. Indole-3-acetic acid Potassium salt IAA-K Physicochemical Properties (Technical Specifications)

Chemical Formula: C₁₀H₈KNO₂

Molecular Weight: 201.27 g/mol

Appearance : White to pale yellow fine crystalline powder, with no visible impurities

Purity (Determined by HPLC): ≥98.5%, ensuring high bioactivity and minimal interference from impurities

Moisture Content (Measured via Karl Fischer Titration): ≤0.3%, preventing clumping and maintaining product stability during storage

pH Value (1% Aqueous Solution, Tested with Precision pH Meter): 6.2-7.8, neutral range that ensures compatibility with most agricultural inputs

Solubility:

Easily soluble in water, with a solubility of ≥120 g/L at 25℃, eliminating the need for organic solvents in formulation

Soluble in methanol (≥80 g/L) and ethanol (≥60 g/L), providing flexibility for different formulation types

Melting Point (Detected by Differential Scanning Calorimetry): 210-215℃ (with decomposition), indicating good thermal stability under normal processing conditions

Stability of Indole-3-acetic acid Potassium salt IAA-K:

Stable for ≥24 months when stored in sealed, cool (15-25℃), and dry (relative humidity ≤60%) environments

Resistant to light degradation when packaged in light-proof containers, maintaining efficacy over time

Key Physicochemical Advantages of Indole-3-acetic acid Potassium salt IAA-K: Compared to free IAA, the potassium salt form of IAA-K offers significantly improved water solubility (over 150 times higher than free IAA in cold water), simplifying the preparation of liquid formulations such as soluble concentrates (SL) and wettable powders (WP). The neutral pH range avoids phytotoxicity that may occur with acidic or alkaline PGRs, enabling safe mixing with pesticides, fertilizers, and other growth regulators. Additionally, the low moisture content and high purity reduce the risk of formulation defects, ensuring consistent performance in agricultural applications.

auxin IAA Indole-3-acetic acid Potassium salt IAA-K (26)

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Main Product: Plant Growth Regulator, Biochemical, Biostimulant, Fungicide , Pesticide, Insecticides

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