Description

Diammonium 4,4,5,5,6,6,7,7,8,8,9,9,10,11,11,11-Hexadecafluoro-2-Hydroxy-10-(Trifluoromethyl)Undecyl Phosphate is a specialized fluorinated phosphate ester salt designed for high-performance surface modification. This compound is valued for its ability to impart exceptional oil, water, and stain repellency to a wide range of substrates. It is a critical raw material for formulators in the textile, leather, paper, and advanced material coatings industries seeking durable, low-surface-energy properties.

Application

• Fluorochemical Repellent Formulations: A key intermediate for synthesizing high-efficiency water, oil, and stain repellents for textiles, carpets, and outdoor apparel.
• Leather and Suede Treatment: Used to create protective, breathable, and dirt-repellent finishes for premium leather goods.
• Paper and Packaging Coatings: Imparts grease resistance and moisture barrier properties to food packaging, release papers, and specialty papers.
• Non-woven and Fiber Treatment: Enhances the performance of medical fabrics, filtration media, and industrial wipes by providing liquid repellency.
• Stone and Masonry Protection: Serves as a component in formulations for protecting building materials from water ingress, staining, and weathering.
• Industrial and Metalworking Fluids: Can be used as an additive to provide lubricity and anti-corrosion properties in specialized fluid systems.
• Firefighting Foam Concentrates (Legacy/Historical): Historically used in the synthesis of certain fluorosurfactants for aqueous film-forming foams (AFFF).

Basic Information

Item	Detail
Product Name	Diammonium 4,4,5,5,6,6,7,7,8,8,9,9,10,11,11,11-Hexadecafluoro-2-Hydroxy-10-(Trifluoromethyl)Undecyl Phosphate
CAS No.	63295-18-1
Molecular Formula	C12H11F19NO5P (Note: Formula for the acid form; contact for salt form details)
Molecular Weight	Contact for details
Synonyms	4,4,5,5,6,6,7,7,8,8,9,9,10,11,11,11-Hexadecafluoro-2-hydroxy-10-(trifluoromethyl)undecyl phosphate diammonium salt; Diammonium perfluoroalkyl phosphate ester; Fluorinated phosphate ester ammonium salt; PFAS-based phosphate ester (C6-type); Ammonium salt of 1H,1H,2H,2H-perfluorodecyl phosphate derivative; FC-722 precursor intermediate; Repellent agent intermediate 63295-18-1; Diammonium 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluoro-2-hydroxydecyl phosphate (alternative numbering)
EINECS	Contact for details

Quality Control

Our production of this fluorinated specialty chemical adheres to strict batch-to-batch consistency protocols. Quality is verified through analytical methods including HPLC for purity, NMR for structural confirmation, and titration for active content. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and key impurity profiles is provided with every shipment to ensure it meets your formulation specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep away from strong acids, strong bases, and strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
pH (5% solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.