亚硫酸钠
SODIUM SULFITE
Na2SO3 % | 91.54 |
NaCL % | 0.01 |
Fe % | 0.003 |
APPEARANCE OF SOLID | WHITE CRYSTAL POWDER |
ARSENIC(ppm) | <1.00 |
CHLORIDE(ppm) | 19.00 |
HEAVY METALS as Pb(ppm) | 9.00 |
INSOLUBLE-WATER % | ND |
IRON as Fe(ppm) | 2.98 |
MOISTURE % | 0.04 |
PH 5 % SOLUTION | 10.59 |
CHEMICAL ASSAYS(PURITY as Na2SO3) % | 99.22 |
SELENIUM(ppm) | <2.00 |
SODIUM SULPHATE % | 0.73 |
性 质
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用 途
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白色晶体或粉末,碱,硫味,溶于水,稍溶于乙醇。 | 纸工业(半化学浆),还原剂(染料),水处理,摄影显像剂,食物防腐与抗氧化剂,纺织漂白(解氯剂)。 |