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訂購電話:4001650900

Sodium sulfate anhydrous

Cas:
7757-82-6
Molecular Structure:
MDL:
--MFCD00003504
Molecular Formula:
Na2SO4
Molecular Weight:
142.04
Alias:
無水芒硝,元明粉 Sodium sulfate exsiccated Sodium sulfate anhydrous
Product order:
Name Specifications Packing Price Delivery
Sodium sulfate anhydrous USP, EP, BP 500g RMB 418 Consulting service
Sodium sulfate anhydrous 農(nóng)殘級(jí) 500g RMB 528 Consulting service
Sodium sulfate anhydrous 農(nóng)殘級(jí) 100g RMB 160.6 Consulting service
Sodium sulfate anhydrous ACS 500g RMB 75.9 Consulting service
Sodium sulfate anhydrous 4N 25g RMB 93.5 Consulting service
Sodium sulfate anhydrous SP 25g RMB 93.5 Consulting service
Sodium sulfate anhydrous CP 500g RMB 27.5 Consulting service
Sodium sulfate anhydrous AR 500g RMB 52.8 Consulting service
Character:
白色顆粒性粉末,無氣味,有苦咸味,無臭,無毒。易在潮濕空氣中吸收三分子水。能溶于水和甘油,不溶于醇。3.6溶于份水。33℃時(shí)溶解度最大(1:2),溫度再高溶解度降低,100℃時(shí)溶于2.4份水。
密度:2.7
熔點(diǎn):880℃
沸點(diǎn):1700℃
Quality Standard:
   
   GB/T 9853-88
項(xiàng)目Item                                  分析純     化學(xué)純
                                           (AR)       (CP)
含量(Na2SO4)Assay,%                    ≥  99.0       98.0
pH(50g/L溶液,25℃)pH                      5.0-8.0   5.0-8.0
of water solution
澄清度試驗(yàn)Clarity                          合格      合格
水不溶物Insoluble matter in water,%    ≤  0.005     0.02
灼燒失重Ignition loss,%                ≤  0.2       0.5
氯化物(Cl)Chloride,%                   ≤  0.001     0.005
總氮量(N)Total nitrogen,%             ≤  0.0005    0.001
磷酸鹽(PO4)Phosphate,%                 ≤  0.001     0.002
鉀(K)Potassium,%                       ≤  0.01       --
鈣(Ca)Calcium,%                        ≤  0.002     0.005
鐵(Fe)Iron,%                           ≤  0.0005    0.0015
重金屬(以Pb計(jì))Heavy metals,%           ≤  0.0005    0.002

ACS級(jí)
項(xiàng)目名稱                                          ACS Grade
含量(Na2SO4)Assay                                   ≥99.0%
pH(5%溶液,25.0℃)pH of a 5% solution at 25.0℃      5.2-9.2
水不溶物Insoluble matter                            ≤0.001%
灼燒殘?jiān)黂esidue after ignition                      ≤0.5%
氯化物(Cl)Chloride(Cl)                              ≤0.001%
含氮化合物(以N計(jì))Nitrogen compounds                 ≤5ppm
磷酸鹽(PO4)Phosphate                                ≤0.001%
重金屬(以Pb計(jì))Heavy metals(as Pb)                   ≤5ppm
鐵(Fe)Iron(Fe)                                      ≤0.001%
鈣(Ca)Calcium                                       ≤0.01%
鎂(Mg)Magnesium                                     ≤0.005%
鉀(K)Potassium                                      ≤0.01%
萃取-濃縮的適應(yīng)性實(shí)驗(yàn)Extraction-concentration
suitability                                         Passes test

USP, EP, BP 
ASSAY (DRIED BASIS) 99.0 - 100.5% 
ACIDITY / ALKALINITY TO PASS TEST 
LOSS ON DRYING -- 0.5% 
CHLORIDE (Cl) -- 0.02% 
HEAVY METALS (as Pb) -- 0.001% 

Storage:
密封干燥保存。
用途  醫(yī)藥上用作鹽析劑、聚凝劑,也用于造紙、玻璃、印染、合成纖維、制革等工業(yè)。
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