产品描述

Na2H2P2O7    95.0% MIN
APPEARANCE    WHITE POWDER
WATER INSOLUBLE    1.0% MAX
ARSENIC( AS)    3PPM MAX
LOSS ON DRYING    0.5% MAX
CADMIUM (PPM)    1 MAX
LEAD (PPM)    4 MAX
MERCURY (PPM)    1 MAX
HEAVY METAL( PB)    15PPM MAX
FLUORID( PPM)    10 MAX
PH VALUE    3.5-4.5