6-Hydroxy-2-naphthoic acid CAS NO.16712-64-4

Melting point 245-247°C 2,3-HNA ≤0.05% 2-Naphthol ≤0.10% 2-Naphthalene Sulfonic Acid ≤0.002% HNDA ≤0.05% …

 Melting point 245-247°C

2,3-HNA ≤0.05%

2-Naphthol ≤0.10%

2-Naphthalene Sulfonic Acid ≤0.002%

HNDA ≤0.05%

2,6-HNA Methyl Ester ≤0.1%

1,1-Bi(2-Naphthol) ≤0.1%

Moisture ≤0.1%

Bulk Density ≥0.48kg/L

Sulfur ≤50ppm

Insolubles ≤50ppm

(Pt-Co) Color(APHA) ≤50ppm

Ash ≤0.02%

K ≤10ppm

Na ≤10ppm

Fe ≤10ppm

Ca+Mg ≤10ppm