Purchase Qty. Reference FOB Price
500-999 kg US$3.00
1,000-4,999 kg US$2.90
5,000-7,999 kg US$2.80
8,000-14,999 kg US$2.70
15,000+ kg US$2.60
Product Description
Specification Test Item Specification Content (Na2H2P2O7) % ≥95.0 Phosphorus pentoxide(P2O5) 63.0-64.0 PH value 3.7-4.5 Water-insoluble % ≤1.0 Fluoride (F) % ≤10ppm Heavy metal (Pb) % ≤10ppm Arsenic (As) % ≤1ppm Pb ≤1ppm Hg ≤1ppm Cd ≤1ppm Loss on ...