产品规格 :
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食品级
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含量 :
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98%
|
主要用途 :
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缓冲剂
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保质期 :
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18个月
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品牌 :
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江苏科伦多
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有效物质含量 :
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98%
|
外观 :
|
白色结晶颗粒或粉末
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主要营养成分 :
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磷酸二氢钠
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型号 :
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科伦多
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一、化学名称:磷酸二氢钠
二、分子式:NaH2PO4,NaH2PO4·H2O,NaH2PO4·2H2O
三、分子量:无水物:120.01;一水物:138.01;二水物:156.01
四、CAS:无水物:7558-80-7;一水物:10049-21-5;二水物:13472-35-0
五、性状:无色柱状结晶。无臭。稍有潮解性。相对密度2.04。熔点60℃。易溶于水。不溶于乙醇。100℃以下加热,可溶于结晶水形成一水盐。加热至100℃失去结晶水而成无水物,继续加热则变为偏磷酸钠。
六、用途:缓冲剂、品质改良剂、乳化剂、营养增补剂、抗氧化增效剂、盐水穿透助剂、糖澄清剂、稳定剂、凝胶剂、禽类烫毛剂。
七、包装:内衬聚乙烯塑料袋,外套复合塑料编织袋包装,每袋净重25kg。
八、贮存与运输:本品应贮存在干燥通风清洁的库房中,装载运输时要轻装轻放,防止包装破损,防止受潮、受热,运输过程中防止雨淋受潮,应与有毒物品隔离。
质量指标 | Specification | GB 25564-2010 | FCC VII | ||
含量(以干基计) , w/% | Content (NaH2PO4), w/% | 98.0-103.0 | 98.0-103.0 | ||
pH(10g/L溶液,25℃) | pH (10g/L,25℃) | 4.1-4.7 | ———— | ||
水不溶物 , w/%≤ | InsolubleSubstances, w/%≤ | 0.2 | 0.2 | ||
重金属(以Pb计),mg/kg ≤ | Heavy Metal(Pb),mg/kg ≤ | 10 | ———— | ||
铅 (Pb),mg/kg ≤ | Pb,mg/kg ≤ | 4 | 4 | ||
砷(As),mg/kg ≤ | As,mg/kg ≤ | 3 | 3 | ||
氟化物( 以F计),mg/kg ≤ | Fluorides (F),mg/kg ≤ | 50 | 50 | ||
干燥失重, w/% | NaH2PO4≤ | Loss On Drying | NaH2PO4≤ | 2.0 | 2.0 |
NaH2PO4·H2O | NaH2PO4·H2O | 10.0-15.0 | 10.0-15.0 | ||
NaH2PO4·2H2O | NaH2PO4·2H2O | 20.0-25.0 | 20.0-25.0 |
1. Chemical Name:Monosodium Phosphate
2. Molecular Formula:NaH2PO4,NaH2PO4·H2O,NaH2PO4·2H2O
3. Molecular Weight: Anhydrous: 120.01; Monohydrate: 138.01; Dihydrate: 156.01
4. CAS: Anhydrous: 7558-80-7; Monohydrate: 10049-21-7; Dihydrate: 13472-35-0
5. Character:It is colorless column crystal, odorless, slightly deliquescence. The relative density is 2.04 and
melting point is 60℃. It is easily soluble in water but insoluble in ethanol. If heated below 100℃, it can
dissolve in its’ own crystal water and convert to monohydrate salt. When heated up to 100℃, it’ll lose
crystal water and change to anhydrous substances, which will become Sodium Metaphosphate if it
continues to be heated.
6. Usage: In food industry, it is used as buffering, character improving agent, emulsifier, nutrition supplement, antioxidant additive, brine penetrable agent, sugar clarifier, stabilizer, coagulant and fowl scalding agent.
7. Packing:It is packed with polyethylene bag as inner layer and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.
8、Storage and Transport: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.
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