Specification£ºGB210-92 First Grade ITEM(LIGHT) INDEX NA2C03,£¥¡Ý 99.2 NACL,£¥¡Ü 0.70 NACL,£¥¡Ü 0.004 WATER INSOLUBLE MATTER,£¥¡Ü 0.04 LOSS ON IGNITION,£¥¡Ü 0.8 ITEM(DENSE) INDEX NA2CO3,£¥ ¡Ý 99.2 NACL,£¥¡Ü 0.70 FE£¬£¥¡Ü 0.0035 WATER INSOLUBLE MATTER,£¥¡Ü 0.03 LOSS ON IGNITION,£¥¡Ü 0.8 G/ML¡Ü 0.9