磷酸二氫鋁
別名：酸式磷酸鋁 雙氫磷酸鋁
分子式：Al(H2PO4)3
分子量：317.94
CAS NO：13530-50-2
EC NO：236-875-2
性狀：無色或略帶淺色透明粘稠液體或白色粉末,易溶于水,水溶液呈酸性。化學(xué)結(jié)合力強,常溫下固化,耐高溫,有很強的紅外線吸收能力和良好的絕緣性。
用途：用于耐火材料、阻燃劑、蜂窩泡沫陶瓷.玻璃、電器、鑄造、模具等的制造。 廣泛應(yīng)用于高溫窯爐上,與耐火骨料配制成耐高溫膠凝材料；用其粘貼爐襯,作爐壁耐火涂層和耐高溫砌縫材料；制作成定形或不定形的耐高溫耐火材料或補爐材料。還可用作纖維,木材等的膨脹型阻燃料；在電器生產(chǎn)中用作具有良好介電性能的涂層或粘結(jié)材料；在陶瓷制品生產(chǎn)中配入磷酸二氫鋁可提高其高溫抗壓強度,抗彎強度；在建筑業(yè)中將其加到普通硅酸鹽水泥或礬士水泥中,可縮短凝固時間,提高水泥制品強度；在電力工業(yè)中,利用其電絕性能,用于生產(chǎn)耐熱絕緣制品等；制作磷酸鹽膠凝材料；粘結(jié)金屬和陶瓷等。
包裝：塑桶包裝,每桶凈重30Kg或內(nèi)塑外編每袋凈重25Kg。
執(zhí)行標準湘Q/HG1346
質(zhì)量規(guī)格：（見下表）

序號	項  目	指     標
1	外  觀	白色粉末	無色或略帶淺色透明粘稠液體
2	五氧化二磷(以P2O5計)%	65±2	33±1
3	氧化鋁（以Al2 O3計）	17±1	8.5±0.5
4	水不溶物% ， ≤	0.50	0.50
5	相對密度（25℃）	——	1.47±0.03

Aluminium dihydrogen phosphate
Chemical formula: Al(H2PO4)3
Molecular Weight:317.94
CAS NO：13530-50-2
EC NO：236-875-2
Description: Colorless or light colored transparent viscous liquid or white powder, soluble in water, the aqueous solution is acid.Strong chemical binding force, curing at room temperature, high temperature resistance, strong infrared absorption capacity and good insulation.
Uses: used in the manufacture of refractories, flame retardants, ceramics, glass, electrical appliances, casting, molds, etc.It is widely used in high-temperature kilns to prepare high-temperature resistant cementitious materials with refractory aggregate, to paste furnace linings, to make furnace wall refractory coating and high-temperature resistant seam building materials;High temperature resistant refractories or furnace mending materials made into fixed or irregular shapes. It can also be used as expansion type fuel for fiber, wood, etc;It can be used as coating or bonding material with good dielectric property in the production of electrical appliances; adding aluminum dihydrogen phosphate in the production of ceramic products can improve its high-temperature compressive strength and bending strength; adding it to ordinary portland cement or alum cement in the construction industry can shorten the setting time and improve the strength of cement products; in the power industry, using its electrical insulation property, It is used to produce heat-resistant insulating products, phosphate cementitious materials, bonding metals and ceramics, etc.
Packing: 25kg net in plastic Woven bags lined with plastic bags.
Quality standard (see the table bellow) :

No	Items	Index
1	Appearance	White powder	Colorless or light transparent viscous liquid
2	Phosphorous pentoxide as P2O5 %	65±2	33±1
3	Alumina as  Al2 O3  %	17±1	8.5±0.5
4	Water insoluble%≤	0.50	0.50
5	Specific gravity 25℃	——	1.47±0.03