磷酸二氫鉀 MONOPOTASSIUM PHOSPHATE
一、化學(xué)名: 磷酸二氫鉀
二、分子式: KH2PO4
三、分子量: 136.09
四、CAS: 7778-77-0
五、性狀: 無色正方晶系結(jié)晶或白色顆粒或結(jié)晶性粉末,無臭,在空氣中穩(wěn)定。相對(duì)密度為2.338,熔點(diǎn)96℃至253℃。
六、用途: 在食品工業(yè)中作緩沖劑、螯合劑、酵母食料、調(diào)味劑、營(yíng)養(yǎng)強(qiáng)化劑、發(fā)酵助劑、膨松劑等。
七、包裝: 內(nèi)襯聚乙烯塑料袋,外套復(fù)合塑料編織袋包裝,每袋凈重25kg。
八、貯存與運(yùn)輸: 本品應(yīng)貯存在干燥通風(fēng)清潔的庫(kù)房中,裝載運(yùn)輸時(shí)要輕裝輕放,防止包裝破損,防止受潮、受熱,運(yùn)輸過程中防止雨淋受潮
質(zhì)量指標(biāo) Specification GB 25560-2010 FCC VII
含量(干基計(jì)),w% ≥ Content (Dry Basis),w% ≥ 98.0 98.0
砷(As),mg/kg ≤ Arsenic (As), mg/kg ≤ 3 3
氟化物(以F計(jì)),mg/kg ≤ Fluorides (F), mg/kg ≤ 10 10
重金屬(以Pb計(jì))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% ≤ Loss on drying, w% ≤ 1.0 1.0
pH值,(10g/L 溶液) pH Value,(10g/L ) 4.2-4.7 ————
1. Chemical Name: Monopotassium Phosphate
2. Molecular Formula: KH2PO4
3. Molecular Weight: 136.09
4. CAS: 7778-77-0
5. Character: It is colorless square crystal or white granule or crystalline powder, odorless, stable in air. Relative density is 2.338. Melting point is 96℃-253℃.
6. Usage: In food industry, it is used as buffering agent, chelating agent, yeast food, flavoring agent, nutrient supplement, fermentation adjunct, swelling agent and so on.
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 & 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.