Diammonium Phosphate

FOOD ADDITIVES

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磷酸氢二铵(DAP)

Diammonium Phosphate

化学式：(NH4)2HPO4

Chemical formula：(NH4)2HPO4

分子量：132.0

Molecular weight：132.0

执行标准：HG/T4132-2010 (工业级）GB 30613-2014 (食品级）

Standard executed :HG/T4132-2010（Tech grade） GB 30613-2014 (Food grade）

性状：白色粒状晶体，相对密度为1.619，熔点155℃，易溶于水，不溶于醇，在空气中逐渐失去氨生成磷酸二氢铵。

Property：White crystal， Relative density is 1.619g/cm3, melting point is 155℃, easily soluble in water , insoluble in alcohol, PH value of 1%solution is 8.0

技术指标：Technical Specifications：

序号 No.	指标名称 Specifications	工业级 Tech grade	食品级 Food grade
1	主含量((NH4)2HPO4计) % ≥ Main content	99	99
2	P2O5 % ≥ Phosphorus pentoxide	53.0	53.0
3	氮 % ≥ Nitrogen, as N	21.0	21.0
4	1%水溶液PH值 PH of 1% solution	7.8-8.2	7.6-8.2
5	水不溶物 % ≤ Water insoluble	0.1	0.1
6	水份(H2O) % ≤ Moisture	0.2	0.2
7	氟化物（以F计） Fluoride, as F % ≤	/	0.001
8	重金属（以Pb计） Heavy metals, as Pb % ≤	0.005	0.001
9	砷（以As计） Arisenic, as As % ≤	0.005	0.0003

用途：主要用于木材、纸张、织物作防火剂，也用作防火涂料添加剂，同事也是生产高聚合度聚磷酸铵的的原料。另外，还可用于印刷制版和医药的制造，在食品工业中用作发酵剂、营养剂等。在农业上作为无氯型N、P、二元复合肥使用，其总养分（N+P2O5）为74%，是配制N、P、K 三元复混肥的优质基础原料。

Uses：As a fire-prevention agent for fabric, timber and paper. Also as a raw maerials for ammonium polyphosphate of high polymerization. It may be used for makeding printing plates; in food industry it is mainly used as a fermentation agent, nourishment and so on; In agriculture, it is used as a high effective non-chloride N,P compound fertilizer and containing totally 74% fertilizer elements, it is often used as a basic raw material for N,P and K compound fertilizer.

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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