Dipotassium phosphate

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磷酸二氢钾(DKP)

Dipotassium phosphate

化学式：K2HPO4, K2HPO4.3H2O

Molecular formula: K2HPO4, K2HPO4.3H2O

分子量：174.18, 228.22

Molecular weight: 174.18 , 228.22 ,

执行标准：HG/T4510-2013 (工业级), GB25561-2010(食品级)

Standard executed :HG/T4510-2013(Tech grade）, GB25561-2010 (Food grade）

性状：白色结晶或无定形白色粉末，易溶于水，水溶液呈微碱性，微溶于醇，有吸湿性，温度较高时自溶。相对密度为2.338，204℃时分子内部脱水转化为焦磷酸钾。1%水溶液的pH值约为9。

Properties: white crystal or formless powder. It is soluble in water easily, slightly soluble in alcohol.Strong absorption of moisture.When anhydrous product heated to 204°C.It will be dehydrated into tetra potassium pyrophosphate. The PH of 1% aqueous solution is about 9.

指标名称 Specifications	工业级 Industrial Grade		食品级 Food Grade
指标名称 Specifications	DKP.3H2O	Anhydrous	DKP.3H2O	Anhydrous
磷酸氢二钾 % ≥ K2HPO4	98.0	98.0	98.0	98.0
五氧化二磷 % ≥ P2O5	30.5	40.0	30.5	40.0
氧化钾 % ≥ K2O	40.5	53.0	40.5	53.0
水不溶物 %≤ Water Insoluble	0.02	0.02	0.2	0.2
氯化物 %≤Chlorides, as Cl	0.05	0.05	--	--
氟化物(以F计) Fluoride, as F w/%≤	--	--	0.001	0.001
铁（Fe）w/%≤	0.003	0.003	--	--
砷（As）w/%≤	0.01	0.01	0.0003	0.0003
重金属（以Pb计）w/%≤	0.005	0.005	0.001	0.001
铅（Pb）w/%≤	--	--	0.0002	0.0002
PH值(1%水溶液)	9.0-9.4	9.0-9.4	8.6-9.4	8.6-9.4
干燥减量Loss on drying w/%≤	22-26	2.0	22.0~26.0	2.0

用途：

作为高效水溶肥，复混肥的配制原料。是制造焦磷酸钾的原料

用于锅炉水处理。在化学分析中用作缓冲剂，用于金属的磷化处理中以及用作电镀添加剂。防冻剂的缓蚀剂发酵工业的磷钾调节剂。

用于医药（青霉素、链霉素的培养剂）工业，微生物、菌类培养剂，抗生素培养基的营养剂。还可用作滑石粉的脱铁剂、pH调节剂等。

食品工业用作配制面食制品用碱水的原料、发酵用剂、调味剂、膨松剂、乳制品的温和碱性剂、酵母食料，有时会被加入到奶茶粉中。也可用作饲料添加剂。

Uses: Fertilizer

Used as a high efficient, K and P compound water soluble fertilizer, also as a basic raw material for NPK fertilizers. The raw material for producing potassium pyrophosphate.

Food Industry

Used as additive in the coffee creamers substitute and as nutrient in various powdered materials (stabilizer (emulsifier) in non-dairy creamers, bodybuilding drinks). For the preparation of the pasta with alkaline materials, fermentation agent, flavoring agent, leavening agent dairy mild alkaline agent, yeast starter, used as buffering agent. Also used as feed additives.

Pharmaceutical Industry

Used as nutrient in microorganism cultures to produce antibiotics, animalcule, Bacteria culture medium and as a in certain pharmaceuticals. Also be used as talc iron removal agent, pH regulator.

General

Put into antifreeze solutions as a buffer and sequestrate

used in boiler water treatment.Used as a buffer in chemical analysis, as a phosphating treatment of metals and as an electroplating additive.

包装：内塑外编，每袋净重25 Kg、 50Kg 、1000Kg，贮于通风干燥处。

Packing：Plastic woven bag. Net weight 25 Kg、 50Kg 、1000Kg , store at a cool, dry and well ventilated place.

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