• 硫酸鋁,十八水 [7784-31-8]

  • 英文名:Aluminum sulfate octadecahydrate
  • 別名:Trade termforalum
  • CAS號(hào):7784-31-8 分子式:AL2(SO4)3?18H2O 分子量:666.41
P129953-500g 硫酸鋁,十八水 [7784-31-8] 99% metals basis 500g 60.00 促銷價(jià):45.00
P129951-500g 硫酸鋁,十八水 [7784-31-8] 99.99% metals basis 500g 1185.00
P129950-100g 硫酸鋁,十八水 [7784-31-8] 99.99% metals basis 100g 282.00
P129959-25g 硫酸鋁,十八水 [7784-31-8] 99.99% metals basis 25g 86.00
P129952-500g 硫酸鋁,十八水 [7784-31-8] ACS,98.0-102.0% 500g 76.00
P129955-500g 硫酸鋁,十八水 [7784-31-8] AR,99% 500g 50.00 促銷價(jià):31.50
訂貨編號(hào) 商品名稱 規(guī)格 包裝 單價(jià) 促銷價(jià) 會(huì)員價(jià) 數(shù)量
P129953-500g 硫酸鋁,十八水 [7784-31-8] 99% metals basis 500g 60.00 45.00 登錄可見
P129953-500g 硫酸鋁,十八水 [7784-31-8] 99% metals basis 500g 60.00 促銷價(jià):45.00
P129951-500g 硫酸鋁,十八水 [7784-31-8] 99.99% metals basis 500g 1185.00 1185.00 登錄可見
P129951-500g 硫酸鋁,十八水 [7784-31-8] 99.99% metals basis 500g 1185.00
P129950-100g 硫酸鋁,十八水 [7784-31-8] 99.99% metals basis 100g 282.00 282.00 登錄可見
P129950-100g 硫酸鋁,十八水 [7784-31-8] 99.99% metals basis 100g 282.00
P129959-25g 硫酸鋁,十八水 [7784-31-8] 99.99% metals basis 25g 86.00 86.00 登錄可見
P129959-25g 硫酸鋁,十八水 [7784-31-8] 99.99% metals basis 25g 86.00
P129952-500g 硫酸鋁,十八水 [7784-31-8] ACS,98.0-102.0% 500g 76.00 76.00 登錄可見
P129952-500g 硫酸鋁,十八水 [7784-31-8] ACS,98.0-102.0% 500g 76.00
P129955-500g 硫酸鋁,十八水 [7784-31-8] AR,99% 500g 50.00 31.50 登錄可見
P129955-500g 硫酸鋁,十八水 [7784-31-8] AR,99% 500g 50.00 促銷價(jià):31.50
  •  訂貨編號(hào)
  •  商品名稱
  •  規(guī)格
  •  包裝
  •  單價(jià)
  •  促銷價(jià)
  •  會(huì)員價(jià)
  •  數(shù)量

化學(xué)性質(zhì)

白色無定形結(jié)晶或顆粒和粉未,有甜味。溶于水,不溶于醇。逐漸加熱熔解,250℃失去水分,加熱時(shí)分解。在空氣中穩(wěn)定,當(dāng)相對(duì)濕度約20%時(shí)風(fēng)化。比重為1.69。在空氣中長(zhǎng)期存放易吸結(jié)塊,脫水溫度為86.5℃,能溶于水、酸和堿,不溶于醇,水溶液呈酸性,具有酸而澀的味道。加熱到530℃時(shí)開始分解,860℃分解結(jié)束,分解最終產(chǎn)物為r-Al2O3,、高純硫酸鋁在水解過程中,首先生成中間產(chǎn)物堿式鹽,然后生成氫氧化鋁。 熔點(diǎn):86℃

質(zhì)量標(biāo)準(zhǔn)

  

HG/T3-929-76
項(xiàng)目Item                               分析純      化學(xué)純
                     (AR)              (CP)
含量[Al2(SO4)3•18H2O]Assay,%           ≥99.0            98.0
水溶液反應(yīng)Soluble reaction               合格      合格
澄清度試驗(yàn)Clarity                        合格      合格
水不溶物lnsoluble matter in water,%    ≤0.02            0.05
氯化物(Cl)Chloride,%                   ≤0.002           0.01
銨鹽(NH4)Ammonium,%                    ≤0.005           0.02
鐵(Fe)lron,%                           ≤0.003           0.01
堿金屬及堿土金屬(以硫酸鹽計(jì))Alkali
and earths,%                           ≤0.25            0.5
重金屬(以Pb計(jì))Heavy metals,%           ≤0.001           0.002


品級(jí)Grade                               藥典級(jí)  
                        (Ph. Eur., BP, 100-110%, 51.0-59.0% Al2(SO4)3 basis)
含量assay                             100-110%
                                      51.0-59.0% Al2(SO4)3 basis
溶劑殘?jiān)黵esidual solvents,            complies
重金屬heavy metals (as Pb)            ≤0.002%  
銨ammonium (NH4)                      ≤0.003%  
硫酸氫銨不沉淀物sub.not precip.b.NH4OH(SO4)
                                      ≤0.2%
pH(20 °C, 2%)                        2.5-4.0
氯chloride (Cl-):                     ≤50 ppm
As:                                   ≤3 ppm
Fe:                                   ≤50 ppm
溶液外觀appearance of solution        complies


項(xiàng)目名稱Item                                           ACS Grade
含量[以已標(biāo)記結(jié)晶水記]Al2(SO4)3•18H2O]Assay              98.0-102.0%
水不溶物Insoluble matter                                 ≤0.01%
氯化物(Cl)Chloride(Cl)                                   ≤0.005%
鈣(Ca)Calcium(Ca)                                        ≤0.01%
鎂(Mg)Magnesium(Mg)                                      ≤0.002%
鉀(K)Potassium(K)                                        ≤0.005%
鈉(Na)Sodium(Na)                                         ≤0.02%
重金屬(以Pb計(jì))Heavy metals(as Pb)                        ≤0.001%
鐵(Fe)Iron(Fe)                                           ≤0.002%



99.99% metals basis:


外觀Appearance                          White Powder
X-射線衍射分析X-Ray Diffraction         Conforms to Structure
純度Purity                              ≥99.99% Based on Trace Metals Impurities of ICP
ICP Major Analysis                      Confirms Aluminum component
痕量金屬分析total metallic impurities   ≤200ppm by ICP Atomic emission

  

危險(xiǎn)性質(zhì)

  

用途及存儲(chǔ)

用作制白色鞣革、紙上漿、媒染劑、凈水劑、防水劑、澄清劑、石油除臭劑、沉淀劑等。

  密封干燥保存。