一、化学名:磷酸二氢钙,磷酸一钙
二、分子式:Ca(H2PO4)2,Ca(H2PO4)2·H2O
三、分子量:无水物:234.05;一水物:252.07
四、CAS:无水物:7758-23-8;一水物:10031-30-8
五、性能:白色结晶粉末或片状结晶,比重2.220,在100℃时失去结晶水,溶于盐酸及硝酸,微溶于水(1.8﹪)。
六、用途:在食品工业中作膨松剂、面团调节剂、缓冲剂、组织改良剂、固化剂、营养增补剂、螯合剂等。
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25千克。
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 | GB25559-2010 | FCC,1999 |
含量(以Ca计)
, w/% | 无水物 | Content(As Ca ) | 16.8-18.3 | 16.8-18.3(Anhydrous) |
一水物 | 15.9-17.7 | 15.9-17.7(Monohydrate) |
砷 (As), mg/kg ≤ | Arsenic | 3 | 3 |
铅 (Pb), mg/kg ≤ | Lead
| 3 | 5 |
重金属(以P b计),mg/kg ≤ | Heavy
Mental(As
P b) | 10 | 15 |
氟化物(以F计), mg/kg ≤ | Fluoride | 25 | 50 |
干燥减量,无水物,w/% ≤ | Loss
On Drying | 1.0 | 1.0( Anhydrous) |
灼烧减量,一水物,w/% ≤ | Loss
On Ignition | 14.0-15.5 | 14.0-15.5(
Monohydrate) |
澄清度 | Clarity | 通过试验 | -- |
碳酸盐 | Carbonate | 通过试验 | -- |
游离酸及其副盐 | Free
Acid & Its Auxiliary Salt | 通过试验 | -- |
1.Chemical Name: monocalcium phosphate
2.Molecular Formula : Ca(H2PO4)2 ,Ca(H2PO4)2'H2O
3.Molecular Weight: Anhydrous:234.05;Monohydrate:252.07
4.CAS:Anhydrous:7758-23-8;Monohydrate:10031-30-80
5.Character: It is white crystalline powder or flaky crystal. Specific
gravity is2.220. When heated to 100,it begins to lose crystal water. It is
soluble in hydrochloric acid and nitric acid ,slightly soluble in
water(1.8%).
6.Usage: In food industry, it is used as swelling agent ,dough regulator
,buffering agent, modifier, firming agent ,nutritional supplement ,chelating
agent.
7.Packing: It is packed with polyethylene bag as inner layer, and a
compound plastic woven bag as the outer layer. The net weight of each bag is
25kg.
8.Storage and Transport:It should be stored in a dry and ventilating
warehouse; be cautious to keep away from moisture and hot; unloaded with care
,so as t o avoid the damage. Furthermore, it should be stored separately from
poisonous substances.