... glass, metallurgy, papermaking, printing and dyeing, syndet, petrochemical industry, food, medicine and health and so on. It widely ... specification of food soda ash: GB1886-1992 Index namesecond category indexHigh classFirst classQualified productAlkali%≥99.298.898.0Sodium chloride ... 065.060.0The quality specification of food soda ash: GB1886-1992 itemindexAlkali%≥99.2Sodium chloride(NaCI)0.7Iron (Fe)% ...