• 磷酸二氢钠 [7558-80-7]

  • 英文名:Sodium dihydrogenorthophosphate
  • 别名:无水 磷酸一钠 无水磷酸二氢钠 磷酸二氢钠 无水
  • CAS号:7558-80-7 分子式:H2NAO4P 分子量:119.98
P98934-25g 磷酸二氢钠 [7558-80-7] 4N 25g 78.00
P98935-500g 磷酸二氢钠 [7558-80-7] AR 500g 63.00 促销价:39.69
P98936-100g 磷酸二氢钠 [7558-80-7] AR 100g 36.00 促销价:22.68
P98935-250g 磷酸二氢钠 [7558-80-7] for HPLC,≥99.0% 250g 1085.00 促销价:792.05
P98939-50g 磷酸二氢钠 [7558-80-7] for HPLC,≥99.0% 50g 428.00 促销价:312.44
P98936-10g 磷酸二氢钠 [7558-80-7] for HPLC,≥99.0% 10g 145.00 促销价:105.85
P98937-500g 磷酸二氢钠 [7558-80-7] GR 500g 66.00 促销价:41.58
P98937-100g 磷酸二氢钠 [7558-80-7] GR 100g 38.00 促销价:23.94
P98934-100g 磷酸二氢钠 [7558-80-7] PT 100g 65.00
P98931-500g 磷酸二氢钠 [7558-80-7] 用于细胞与昆虫细胞培养,≥99.0% (T) 500g 480.00
P98930-100g 磷酸二氢钠 [7558-80-7] 用于细胞与昆虫细胞培养,≥99.0% (T) 100g 220.00
订货编号 商品名称 规格 包装 单价 促销价 会员价 数量
P98934-25g 磷酸二氢钠 [7558-80-7] 4N 25g 78.00 78.00 登录可见
P98934-25g 磷酸二氢钠 [7558-80-7] 4N 25g 78.00
P98935-500g 磷酸二氢钠 [7558-80-7] AR 500g 63.00 39.69 登录可见
P98935-500g 磷酸二氢钠 [7558-80-7] AR 500g 63.00 促销价:39.69
P98936-100g 磷酸二氢钠 [7558-80-7] AR 100g 36.00 22.68 登录可见
P98936-100g 磷酸二氢钠 [7558-80-7] AR 100g 36.00 促销价:22.68
P98935-250g 磷酸二氢钠 [7558-80-7] for HPLC,≥99.0% 250g 1085.00 792.05 登录可见
P98935-250g 磷酸二氢钠 [7558-80-7] for HPLC,≥99.0% 250g 1085.00 促销价:792.05
P98939-50g 磷酸二氢钠 [7558-80-7] for HPLC,≥99.0% 50g 428.00 312.44 登录可见
P98939-50g 磷酸二氢钠 [7558-80-7] for HPLC,≥99.0% 50g 428.00 促销价:312.44
P98936-10g 磷酸二氢钠 [7558-80-7] for HPLC,≥99.0% 10g 145.00 105.85 登录可见
P98936-10g 磷酸二氢钠 [7558-80-7] for HPLC,≥99.0% 10g 145.00 促销价:105.85
P98937-500g 磷酸二氢钠 [7558-80-7] GR 500g 66.00 41.58 登录可见
P98937-500g 磷酸二氢钠 [7558-80-7] GR 500g 66.00 促销价:41.58
P98937-100g 磷酸二氢钠 [7558-80-7] GR 100g 38.00 23.94 登录可见
P98937-100g 磷酸二氢钠 [7558-80-7] GR 100g 38.00 促销价:23.94
P98934-100g 磷酸二氢钠 [7558-80-7] PT 100g 65.00 65.00 登录可见
P98934-100g 磷酸二氢钠 [7558-80-7] PT 100g 65.00
P98931-500g 磷酸二氢钠 [7558-80-7] 用于细胞与昆虫细胞培养,≥99.0% (T) 500g 480.00 480.00 登录可见
P98931-500g 磷酸二氢钠 [7558-80-7] 用于细胞与昆虫细胞培养,≥99.0% (T) 500g 480.00
P98930-100g 磷酸二氢钠 [7558-80-7] 用于细胞与昆虫细胞培养,≥99.0% (T) 100g 220.00 220.00 登录可见
P98930-100g 磷酸二氢钠 [7558-80-7] 用于细胞与昆虫细胞培养,≥99.0% (T) 100g 220.00
  •  订货编号
  •  商品名称
  •  规格
  •  包装
  •  单价
  •  促销价
  •  会员价
  •  数量

化学性质

无色或白色斜方晶系结晶。易溶于水,其水溶液呈酸性;不溶于醇。在湿空气中易结块。加热至95℃时脱水成无水物,在190~204℃时转化成酸式焦磷酸钠,在204~244℃时形成偏磷酸钠。 熔点 <0°C 沸点 100°C 密度 1.40 g/mL at 20 °C

质量标准

  

Q/(HG)SJ 715-1996
项目Item                       分析纯  化学纯
                                                                  (AR)     (CP)
含量(NaH2PO4)Assay,%                     ≥99.0      98.0
PH(50g/L,25℃)PH                               4.2-4.8   4.2-4.8
澄清度试验Clarity                                合格    合格
水不溶物lnsoluble matter in water,%    ≤0.03    0.05
氯化物(Cl)Chloride,%                            ≤0.005   0.01
硝酸盐(NO3)Nitrate,%                      ≤0.005   0.01
钾(K)Potassium,%                                 ≤0.04      0.08
铁(Fe)Iron,%                              ≤0.001     0.005
砷(As)Arsenic,%                                     ≤0.0005    0.0008
重金属(以Pb计)Heavy metals,%           ≤0.003     0.005
氨沉淀物Snbstances precipitated        ≤0.01      0.02
by Ammonia,%


99.999% metals basis:


外观Appearance                          白色粉末或块状物
X-射线衍射分析X-Ray Diffraction         Conforms to Structure
纯度Purity                              ≥99.999% Based On Trace Metals Analysis
ICP:                                    Confirms Na and P Components Confirmed
磷P                                     25.5 - 26.0 % (Titration NaOH)
痕量金属分析Trace Metal Analysis        ≤20ppm by ICP Atomic emission
(B、Ba、Ca、Fe、Mg、Zn)
痕量金属分析Trace Metal Analysis        ≤20ppm by Atomic Absorption
(Li、K、Rb、Cs)



品级Grade                               分子生物学级  
                               (for molecular biology, anhydrous, ≥99%)
外观Appearance                          白色至类白色粉末
红外光谱鉴别Infrared spectrometry       Conforms to Structure
纯度Purity                              ≥99.0%  
水溶解试验solubility in water           clear colorless ,100mg/ml in water
水分water                               ≤0.5%(K.F)
氯chloride (Cl-):                       ≤40 ppm
铁Fe:                                   ≤30 ppm
DNase, RNase and protease,              none detected



品级Grade                               细胞与昆虫细胞培养级  
                              (for cell culture, for insect cell culture)
外观Appearance                           白色至类白色粉末
纯度Purity                               ≥99.0% (中和滴定)  
水溶解试验solubility in water            clear colorless , 10g plus in 100ml water
细胞培养测试Cell culture test             pass
昆虫细胞培养测试Insect cell culture test  pass



品级Grade                              色谱纯  
                                      (grade for HPLC )
含量assay                               ≥99.0% (T)
pH                                      4.0-4.5 (20 °C, 10% in H2O)
solubility H2O:                         soluble0.1 g/mL at 25 °C, clear, colorless
λ 10 % in H2O
UV absorption
  λ: 210 nm A:                          ≤0.1
  λ: 260 nm A:                          ≤0.06
  λ: 280 nm A:                          ≤0.04
  λ: 320 nm A:                          ≤0.02
  λ: 500 nm A:                          ≤0.02
RP gradient test                        corresponds to standard
filter test                             corresponds to standard

  

危险性质

危险品标志  Xi
WGK Germany  1
F  3 
RTECS号 WA1900000
危险类别码  36/37/38
安全说明  26-36

  

用途及存储

用途  用作分析试剂、缓冲剂和软水剂
用途  用于锅炉水处理、电镀、制革、染料、医药、食品等工业

  密封干燥保存。