硼酸|10043-35-3|正硼酸;原硼酸|艾科试剂

货号	品名	产品规格	包装	单价(RMB)	可用库存	备注
124368	硼酸	99.99% metals basis	500g	398.00	>10	15021
124367	硼酸	ACS，≥99.5%	500g	39.70	>10	15021
124366	硼酸	99.998% metals basis	100g	964.00	>10	15021
124365	硼酸	99.998% metals basis	500g	1974.00	>10	15021
124364	硼酸	99.998% metals basis	25g	295.00	>10	15021
124363	硼酸	用于细胞培养和植物细胞培养, ≥99.5%	500g	388.00	>10	15021
124362	硼酸	分子生物学级, ≥99.5% (T)	500g	499.00	>10	15021
124361	硼酸	99.99% metals basis	100g	119.00	>10	15021
124360	硼酸	99.5%，用于电泳	500g	109.00	>10	15021
124359	硼酸	99.99% metals basis	25g	68.00	>10	15021
124358	硼酸	SP	25g	60.00	>10	15021
124357	硼酸	PT	100g	85.00	>10	15021
124356	硼酸	GR，≥99.8%	500g	38.00	>10	15021
124354	硼酸	AR，≥99.5%	500g	30.00	>10	15021

性状

白色结晶性粉末或无色微带珍珠状光泽的磷片或六角三斜结晶。与皮肤接触有滑腻感，无无气味，味微酸苦后带甜。露置空气中无变化。加热至100-105℃时失去一分子水而形成偏硼酸，于104-160℃时长时间加热转变为焦硼酸，更高温度则形成无水物，300ºC时生成硼酸酐（B2O3）。溶于水、酒精、甘油、醚类及香精油中，水溶液呈弱酸性。硼酸在水中的溶解度随温度升高而增大，并能随水蒸汽挥发；在无机酸中的溶解度要比在水的溶解度小。0.1mol/L水溶液pH为5.1。1g能溶于18ml冷水，4ml沸水，18ml冷醇，6ml沸醇或4ml甘油。在水中溶解度能随盐酸、柠檬酸和酒石酸的加入而增加。
熔点：169℃
沸点：300℃

质量标准

项目Item                                              分析纯    化学纯
                                                       (AR)      (CP)
含量(H₃BO₃)Assay,%                                    ≥ 99.5    99.0
澄清度试验Clarity                                        合格    合格
水不溶物Insoluble matter in water                     ≤ 0.005   0.02
乙醇溶解度试验Solubility in ethanol                      合格    合格
甲醇不挥发物(以硫酸计)Novolatile with methanol,%      ≤ 0.05    0.3
氯化物(Cl)Chloride,%                                  ≤ 0.0005  0.002
硫酸盐(SO₄)Sulfate,%                                  ≤ 0.002   0.01
磷酸盐(PO₄)Phosphate,%                                ≤ 0.0005  0.003
钙(Ca)Calcium,%                                       ≤ 0.002   0.01
铁(Fe)Iron,%                                          ≤ 0.0005  0.002
砷(As)Arsenic,%                                       ≤ 0.0001  0.0005
铅(Pb)Lead,%                                          ≤ 0.001   0.003

项目                                                  优级纯
                                                       (GR)
澄清度试验Clarity                                      合格
钙(Ca)Calcium                                         ≤0.002%
含量Assay                                             ≥99.8%
甲醇不挥发物Novolatile with methanol                  ≤0.05%
磷酸盐Phosphate                                       ≤0.0005%
硫酸盐Sulfate                                         ≤0.0005%
氯化物Chloride                                        ≤0.0003%
镁magnesium                                           ≤0.0005%
砷(As)Arsenic                                         ≤0.00001%
水不溶物Insoluble matter in water                     ≤0.005%
铁(Fe)Iron                                            ≤0.0001%
乙醇溶解试验Solubility in ethanol                     合格
重金属Heavy metals                                    ≤0.0005%

ACS级
项目名称Item                                         ACS Grade
含量Assay                                             ≥99.5%
不溶物Insoluble matter                                ≤0.005%
甲醇不挥发物Novolatile with methanol                  ≤0.05%
氯化物(Cl)Chloride(Cl)                                ≤0.001%
磷酸盐(PO₄)Phosphate                                  ≤0.001%
硫酸(SO₄)Sulfate                                      ≤0.01%
重金属(以Pb计)Heavy metals(as Pb)                     ≤0.001%
铁(Fe)Iron(Fe)                                        ≤0.001%
钙(Ca)Calcium(Ca)                                     ≤0.005%

品级Grade                               分子生物学级
                                   (for molecular biology，≥99.5% (T) )
含量assay                               ≥99.5% (T)
DNases,                                 none detected
RNases,                                 none detected
insoluble matter,                       passes filter test
phosphatases,                           none detected
proteases,                              none detected
non-volatile substances in MeOH/HCl     <0.05%
干燥损失loss on drying                  ≤0.5% , 20 °C (HV)
pH                                      3.6-4.4 (25 °C, saturated solution in H2O)
水溶性solubility H2O:                   soluble1 M, clear, colorless (hot)
氯chloride (Cl-):                       ≤5 ppm
磷酸根phosphate (PO43-):                ≤5 ppm
硫酸根sulfate (SO42-):                  ≤5 ppm
  Al:                                   ≤5 ppm
  As:                                   ≤0.5 ppm
  Ba:                                   ≤5 ppm
  Bi:                                   ≤5 ppm
  Ca:                                   ≤10 ppm
  Cd:                                   ≤5 ppm
  Co:                                   ≤5 ppm
  Cr:                                   ≤5 ppm
  Cu:                                   ≤5 ppm
  Fe:                                   ≤5 ppm
  K:                                   ≤50 ppm
  Li:                                   ≤5 ppm
  Mg:                                   ≤5 ppm
  Mn:                                   ≤5 ppm
  Mo:                                   ≤5 ppm
  Na:                                   ≤50 ppm
  Ni:                                   ≤5 ppm
  Pb:                                   ≤5 ppm
  Sr:                                   ≤5 ppm
  Zn:                                   ≤5 ppm
λ 1 M in H2O
UV absorption
  λ: 260 nm A:                          ≤0.015
  λ: 280 nm A:                          ≤0.010

品级Grade                               电泳级
                               (for electrophoresis, ≥99.5%)
外观Appearance                          白色至类白色粉末
水溶解试验solubility in water           Colorless Clear ，1 g plus 25 ml, H2O
甲醇不溶物Insoluble matter in MeOH      ≤0.005 %
非挥发物Nonvolatile Matter with MeOH    ≤0.05 %
氯Chloride                              ≤0.001 %
磷酸盐Phosphate (PO4)                   ≤0.001 %
硫酸盐Sulfate (SO4)                     ≤0.01 %
钙Calcium (Ca)                          ≤0.005 %
重金属Heavy Metals (as Lead)            ≤0.001 %
铁Iron (Fe)                             ≤0.001 %
含量Assay(% H3BO3)                      ≥99.5 %
电泳实验electrophoresis test            pass

品级Grade                              细胞培养与植物细胞培养级
                       (for cell culture and plant cell culture , ≥99.5%)
外观Appearance                          白色粉末
水溶解试验solubility in water           Clear Colorless，40 mg/ml, H2O
纯度Purity                              ≥99.5 % (Titration by NaOH)
植物细胞培养测试Plant Cell Culture Test Pass
细胞培养测试Cell Culture Test           Pass

99.998% metals basis：

外观Appearance                          白色粉末
X-射线衍射分析X-Ray Diffraction         Conforms to standard
纯度Purity                              ≥99.998% Based On Trace Metals Analysis
ICP Assay                               Confirms Boron component
总金属杂质Total metallic impurities     30ppm by ICP Atomic emission

99.99% metals basis:

外观Appearance                          White Powder
X-射线衍射X-Ray Diffraction             Conforms to Structure
纯度Purity                              ≥99.99% Based on Trace Metals Impurities
纯度Purity (Titration by NAOH)           99.0 - 101.0 %
痕量金属杂质total metallic impurities   ≤100ppm by ICP Atomic emission