江蘇科倫多食品級磷酸氫二鉀

發(fā)布日期：2017-03-02 17:21 來源：http://www.jentum.cn 點擊：

磷酸氫二鉀 DIPOTASSIUM PHOSPHATE

一、化學名： 磷酸氫二鉀

二、分子式： K₂HPO₄，K₂HPO₄· 3H₂O

三、分子量： 無水物：174.18；三水物：228.18

四、CAS: 無水物：7758-11-4；三水物：16788-57-1

五、性狀：無色或白色正方晶體粉末或顆粒，易潮解，呈堿性，不溶于乙醇，1﹪水溶液的PH值約為9。

六、用途： 在食品工業(yè)中作緩沖劑、螯合劑、酵母食料、乳化鹽、抗氧化增效劑。

七、包裝： 內(nèi)襯聚乙烯塑料袋，外套復合塑料編織袋包裝，每袋凈重25kg。

八、貯存與運輸： 本品應貯存在干燥通風清潔的庫房中，裝載運輸時要輕裝輕放，防止包裝破損，防止受潮、受熱，運輸過程中防止雨淋受潮，應與有毒物品隔離。

質(zhì)量指標		Specification		GB 25561-2010	FCC VII
含量(干基計),w% ≥		Content（Dry Basis）, w% ≥		98	98
砷（As),mg/kg ≤		Arsenic（As), mg/Kg ≤		3	3
氟化物（以F計）,mg/kg ≤		Fluoride,mg/Kg ≤		10	10
重金屬（以Pb計),mg/kg ≤		Heavy Metals (Pb), mg/Kg ≤		10	————
水不溶物, w% ≤		Insoluble Substances, w% ≤		0.2	0.2
鉛（Pb）,mg/kg ≤		Lead (Pb), mg/Kg ≤		2	2
干燥減量, w%	無水物 ≤	Loss on drying, w%	Anhydrous ≤	2.0	2.0
	三水物		Trihydrate	20.0-30.0	————
pH值，（10g/L溶液）		pH Value (10g/L)		9.0±0.4	————

1. Chemical Name: Dipotassium Phosphate

2. Molecular Formula: K₂HPO₄，K₂HPO₄· 3H₂O

3. Molecular Weight: Anhydrous: 174.18; Trihydrate: 228.18

4. CAS: Anhydrous: 7758-11-4; Trihydrate: 16788-57-1

5. Character: It’s colorless or white square crystal granule or powder, easily deliquescent, alkaline, insoluble in ethanol. pH value is about 9 in 1% aqueous solution.

6. Usage: In food industry, it is used as buffering agent, chelating agent, yeast food, emulsifying salt, synergistic agent of anti-oxidation.

7. Packing: It is packed with a polyethylene bag as the inner layer, and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.

8. Storage & Transportation: 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.