MDL：
MFCD00149102

分子式：
C2H2O4·2H2O；HO2CCO2H·2H2O

分子量：
126.07

別名：
乙二酸,蓚酸 Ethanedioic acid

產(chǎn)品訂購：

品名	規(guī)格	包裝	單價(jià)	貨期
草酸	AR	500g	18.7元	現(xiàn)貨
草酸	CP	500g	16.5元	咨詢客服
草酸	GR	500g	25.3元	咨詢客服
草酸	GR	5Kg	231元	咨詢客服
草酸	SP	25g	71.5元	咨詢客服
草酸	4N	25g	71.5元	咨詢客服
草酸	ACS	500g	38.5元	咨詢客服
草酸	GCS，≥99.6%	5g	28.6元	咨詢客服
草酸	≥99.998% (metals basis)	5g	110元	咨詢客服
草酸	≥99.998% (metals basis)	25g	396元	咨詢客服

性狀：
無色單斜片狀或棱柱體結(jié)晶或白色粉末。在溫?zé)?、干燥空氣中風(fēng)化，可溶于水及乙醇。無氣味。150-160℃升華。在高熱干燥空氣中能風(fēng)化。1g溶于7ml水、2ml沸水、2.5ml乙醇、1.8ml沸乙醇、 100ml乙醚、5.5ml甘油，不溶于苯、氯仿和石油醚。0.1mol/L溶液的pH值為1.3。低毒，半數(shù)致死量（兔，經(jīng)皮）2000mg/kg。
密度：1.653
熔點(diǎn)：101-102℃
沸點(diǎn)：86.9℃
折光率n20/D：1.45560

質(zhì)量標(biāo)準(zhǔn)：
GB/T 9855-88
項(xiàng)目Item                                         優(yōu)級(jí)純   分析純   化學(xué)純
                                                  (GR)     (AR)    (CP)
含量(C2H2O4·
2H2O)Assay,%                                    ≥99.8     99.5     99.5
澄清度試驗(yàn)Clarity                                 合格     合格     合格
水不溶物Insoluble matter in water,%             ≤0.002    0.005    0.01
灼燒殘?jiān)ㄒ粤蛩猁}計(jì)）Ignition residue,%        ≤0.01     0.02     0.05
氯化鈉(Cl)Chloride,%                            ≤0.0005   0.002    0.005
硫酸鹽(SO4)Sulfate,%                            ≤0.001    0.002    0.005
總氮量(N)Total nitrogen,%                       ≤0.001    0.002    0.005
鈣(Ca)Calcium,%                                 ≤0.001    0.003    0.005
鐵(Fe)Iron,%                                    ≤0.0002   0.0005   0.002
重金屬(以Pb計(jì))Heavy metals,%                    ≤0.0002   0.0004   0.001
易碳化物質(zhì)Readily carboniz-able substance          合格     合格     合格

ACS級(jí)
項(xiàng)目名稱Item                                              ACS Grade
含量(H2C2O4·2H2O)Assay                                    99.5-102.5%
易炭化物質(zhì)Substances darkened by hot sulfuric acid         Passes test
水不溶物Insoluble matter                                   ≤0.005%
灼燒殘?jiān)黂esidue after ignition                             ≤0.01%
氯化物(Cl)Chloride(Cl)                                     ≤0.002%
硫酸鹽(SO4)Sulfate                                         ≤0.005%
鈣(Ca)Calcium(Ca)                                          ≤0.001%
氮化合物(以N計(jì))Nitrogen compounds(as N)                    ≤0.001%
重金屬(以Pb計(jì))Heavy metals(as Pb)                          ≤5ppm
鐵(Fe)Iron(Fe)                                             ≤2ppm

≥99.9999% (metals basis)：

外觀Appearance                          白色粉末或結(jié)晶
純度Purity                              ≥99.9999% Based On Trace Metals Analysis
總氮total nitrogen                      ≤10 ppm
熔點(diǎn)mp                                  104-106 °C
anion traces by
  氯chloride (Cl-):                     ≤5000 ppb
  磷酸根phosphate (PO43-):              ≤500 ppb
  硫酸根sulfate (SO42-):                ≤2000 ppb
cation traces
  Ag:                                   ≤0.01 ppm
  Al:                                   ≤0.02 ppm
  As:                                   ≤0.01 ppm
  Au:                                   ≤0.001 ppm
  Ba:                                   ≤0.1 ppm
  Be:                                   ≤0.001 ppm
  Bi:                                   ≤0.001 ppm
  Ca:                                   ≤0.1 ppm
  Cd:                                   ≤0.05 ppm
  Ce:                                   ≤0.005 ppm
  Co:                                   ≤0.005 ppm
  Cr:                                   ≤0.01 ppm
  Cs:                                   ≤0.01 ppm
  Cu:                                   ≤0.005 ppm
  Dy:                                   ≤0.005 ppm
  Er:                                   ≤0.005 ppm
  Eu:                                   ≤0.005 ppm
  Fe:                                   ≤0.5 ppm
  Ga:                                   ≤0.001 ppm
  Gd:                                   ≤0.005 ppm
  Ge:                                   ≤0.005 ppm
  Hf:                                   ≤0.005 ppm
  Hg:                                   ≤0.005 ppm
  Ho:                                   ≤0.005 ppm
  In:                                   ≤0.001 ppm
  Ir:                                   ≤0.005 ppm
  K:                                    ≤0.2 ppm
  La:                                   ≤0.005 ppm
  Li:                                   ≤0.005 ppm
  Lu:                                   ≤0.005 ppm
  Mg:                                   ≤0.02 ppm
  Mn:                                   ≤0.005 ppm
  Mo:                                   ≤0.005 ppm
  Na:                                   ≤0.1 ppm
  Nb:                                   ≤0.005 ppm
  Nd:                                   ≤0.005 ppm
  Ni:                                   ≤0.01 ppm
  Os:                                   ≤0.01 ppm
  Pb:                                   ≤0.01 ppm
  Pd:                                   ≤0.01 ppm
  Pr:                                   ≤0.005 ppm
  Pt:                                   ≤0.05 ppm
  Rb:                                   ≤0.01 ppm
  Re:                                   ≤0.005 ppm
  Rh:                                   ≤0.005 ppm
  Ru:                                   ≤0.005 ppm
  Sb:                                   ≤0.001 ppm
  Sc:                                   ≤0.05 ppm
  Se:                                   ≤0.01 ppm
  Sm:                                   ≤0.005 ppm
  Sn:                                   ≤0.005 ppm
  Sr:                                   ≤0.1 ppm
  Ta:                                   ≤0.01 ppm
  Tb:                                   ≤0.005 ppm
  Te:                                   ≤0.005 ppm
  Th:                                   ≤0.005 ppm
  Ti:                                   ≤0.02 ppm
  Tl:                                   ≤0.001 ppm
  Tm:                                   ≤0.005 ppm
  U:                                    ≤0.001 ppm
  V:                                    ≤0.01 ppm
  W:                                    ≤0.005 ppm
  Y:                                    ≤0.005 ppm
  Yb:                                   ≤0.005 ppm
  Zn:                                   ≤0.02 ppm
  Zr:                                   ≤0.1 ppm 

貯存：
密封保存