Molecular Structure:

Product description: Product name: Hydroxymethyl phenylphosphinic acid
Abb.: HMPPA

CAS No.: 61451-78-3
Molecular formula: C₇H₉O₃P
Molecular weight: 172.1

Quality index:
Appearance: white powder or crystal
Purity (HPLC): ≥99.0%
Melting point: 137-139^oC
P: 18.0?.5%
Acid value: 326?mgKOH/g
Fe: ≤0.005%
Chloride: ≤0.01%
Moisture: ≤0.5%

Packing: 25kg cardboard drum or plastic bag lined woven bag
Features: Soluble in water, stable in room temperature

Uses:  As one kind of environment-friendly fire retardant, it is a new kind of permanent flame retarding modifier. Compared with CEPPA, it contains less phosphorus, has lower dosage and better thermal stability. The Melting point of its products is higher than that of CEPPA's products, or even reach to 256^oC. It can be used to produce thinner polyester products for it is hard to breakage.