磷酸二氢钾 [7778-77-0]
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英文名:Potassium dihydrogen phosphate
- 别名:二氢磷酸钾
- CAS号:7778-77-0 分子式:H2KO4P 分子量:136.09
P63817-100g 磷酸二氢钾 [7778-77-0] 99.95% metals basis 100g 272.00 促销价:204.00
P63814-50g 磷酸二氢钾 [7778-77-0] 99.99% metals basis 50g 228.00 促销价:171.00
P63815-1g 磷酸二氢钾 [7778-77-0] 99.999% metals basis, Si 10ppm 1g 307.00 促销价:230.25
P63819-5g 磷酸二氢钾 [7778-77-0] 99.999% metals basis, Si 10ppm 最高 5g 1200.00 促销价:900.00
P63813-500g 磷酸二氢钾 [7778-77-0] AR 500g 63.00 促销价:39.69
P63815-500g 磷酸二氢钾 [7778-77-0] for HPLC,≥99.5%(T) 250g 665.00 促销价:498.75
P63819-100g 磷酸二氢钾 [7778-77-0] for HPLC,≥99.5%(T) 50g 224.00 促销价:168.00
P63816-100g 磷酸二氢钾 [7778-77-0] GCS 100g 162.00
P63814-500g 磷酸二氢钾 [7778-77-0] GR 500g 66.00 促销价:41.58
P63818-50g 磷酸二氢钾 [7778-77-0] PT 50g 147.00 促销价:110.25
P63813-25g 磷酸二氢钾 [7778-77-0] SP 25g 198.00 促销价:148.50
订货编号 | 商品名称 | 规格 | 包装 | 单价 | 促销价 | 会员价 | 数量 |
P63818-500g | 磷酸二氢钾 [7778-77-0] | 99.95% metals basis | 500g | 757.00 | 567.75 | 登录可见 |
P63818-500g 磷酸二氢钾 [7778-77-0] 99.95% metals basis 500g 757.00 促销价:567.75
|
P63817-100g | 磷酸二氢钾 [7778-77-0] | 99.95% metals basis | 100g | 272.00 | 204.00 | 登录可见 |
P63817-100g 磷酸二氢钾 [7778-77-0] 99.95% metals basis 100g 272.00 促销价:204.00
|
P63814-50g | 磷酸二氢钾 [7778-77-0] | 99.99% metals basis | 50g | 228.00 | 171.00 | 登录可见 |
P63814-50g 磷酸二氢钾 [7778-77-0] 99.99% metals basis 50g 228.00 促销价:171.00
|
P63815-1g | 磷酸二氢钾 [7778-77-0] | 99.999% metals basis, Si 10ppm | 1g | 307.00 | 230.25 | 登录可见 |
P63815-1g 磷酸二氢钾 [7778-77-0] 99.999% metals basis, Si 10ppm 1g 307.00 促销价:230.25
|
P63819-5g | 磷酸二氢钾 [7778-77-0] | 99.999% metals basis, Si 10ppm 最高 | 5g | 1200.00 | 900.00 | 登录可见 |
P63819-5g 磷酸二氢钾 [7778-77-0] 99.999% metals basis, Si 10ppm 最高 5g 1200.00 促销价:900.00
|
P63813-500g | 磷酸二氢钾 [7778-77-0] | AR | 500g | 63.00 | 39.69 | 登录可见 |
P63813-500g 磷酸二氢钾 [7778-77-0] AR 500g 63.00 促销价:39.69
|
P63815-500g | 磷酸二氢钾 [7778-77-0] | for HPLC,≥99.5%(T) | 250g | 665.00 | 498.75 | 登录可见 |
P63815-500g 磷酸二氢钾 [7778-77-0] for HPLC,≥99.5%(T) 250g 665.00 促销价:498.75
|
P63819-100g | 磷酸二氢钾 [7778-77-0] | for HPLC,≥99.5%(T) | 50g | 224.00 | 168.00 | 登录可见 |
P63819-100g 磷酸二氢钾 [7778-77-0] for HPLC,≥99.5%(T) 50g 224.00 促销价:168.00
|
P63816-100g | 磷酸二氢钾 [7778-77-0] | GCS | 100g | 162.00 | 162.00 | 登录可见 |
P63816-100g 磷酸二氢钾 [7778-77-0] GCS 100g 162.00
|
P63814-500g | 磷酸二氢钾 [7778-77-0] | GR | 500g | 66.00 | 41.58 | 登录可见 |
P63814-500g 磷酸二氢钾 [7778-77-0] GR 500g 66.00 促销价:41.58
|
P63818-50g | 磷酸二氢钾 [7778-77-0] | PT | 50g | 147.00 | 110.25 | 登录可见 |
P63818-50g 磷酸二氢钾 [7778-77-0] PT 50g 147.00 促销价:110.25
|
P63813-25g | 磷酸二氢钾 [7778-77-0] | SP | 25g | 198.00 | 148.50 | 登录可见 |
P63813-25g 磷酸二氢钾 [7778-77-0] SP 25g 198.00 促销价:148.50
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化学性质
质量标准
GB/T1274-93
项目ltem 分析纯 化学纯
(AR) (CP)
含量(KH2PO4),% ≥99.5 99.0
pH(50g/L,25℃)pH of water solution 4.2~4.5 4.2~4.5
澄清度试验Clarity 合格 合格
水不溶物lnsoluble matter in water,% ≤0.002 0.005
干燥失重Drying loss,% ≤0.2 0.3
氯化物(Cl)Chloride,% ≤0.001 0.005
硫酸盐(SO4)Sulfale,% ≤0.003 0.005
总氮量(N)Total nitrogen,% ≤0.001 0.002
砷(As)Arsenic,% ≤0.0005 0.002
钠(Na)Sodium,% ≤0.02 0.05
铁(Fe)Iron,% ≤0.001 0.005
重金属(以Pb计)Heavy metals,% ≤0.001 0.005
ACS级
项目名称 ACS Grade
含量(KH2PO4)Assay ≥99.0%
pH(5%溶液,25.0℃)
pH of a 5% solution at 25.0℃ 4.4-4.5
水不溶物Insoluble matter ≤0.01%
干燥失重Loss on drying ≤0.2%
氯化物(Cl)Chloride ≤0.001%
硫酸盐(SO4)Sulfate ≤0.003%
重金属(以Pb计)Heavy metals(as Pb) ≤0.001%
铁(Fe)Iron ≤0.002%
钠(Na)Sodium ≤0.005%
99.99% metals basis:
外观Appearance White or Colorless Powder/Crystals
X-射线衍射分析X-Ray Diffraction Conforms to Structure
纯度Purity ≥99.99% Based on Trace Metals Impurities
磷Titration by NAOH (% P) 22.3 - 23.2 %
痕量金属分析total metallic impurities ≤200ppm by ICP Atomic emission
(Al、Ba、Ca、Cd、Fe、Li、Mg、Mn、Mo、Na、Rb、Si、Sr、Tl、Zn)
品级Grade 细胞和昆虫细胞培养级,≥99 %
(for cell culture, for insect cell culture,≥99% )
外观Appearance White Powder
水溶性Solubility Colorless Clear ,100 mg/ml, H2O
磷Phosphorus by ICP positive for phosphorus
钾Potassium by ICP positive for potassium
纯度Purity (Titration by NaOH) ≥99 %
细胞培养试验Cell Culture Test Pass
昆虫细胞培养试验Insect Cell Test Pass
品级Grade 植物细胞培养级,≥99 %
(for plant cell culture, ≥99%)
外观Appearance White Powder
水溶性Solubility Colorless Clear ,100 mg/ml, H2O
磷Phosphorus by ICP positive for phosphorus
钾Potassium by ICP positive for potassium
纯度Purity (Titration by NaOH) ≥99 %
细胞培养试验Cell Culture Test Pass
昆虫细胞培养试验Insect Cell Test Pass
品级Grade 分子生物学级,≥99 %
(for molecular biology, ≥99%)
外观appearance white powder
水溶性solubility clear colorless solution at 100mg/ml in water
纯度Purity (Titration by NaOH) ≥99 %
磷Phosphorus by ICP positive for phosphorus
钾Potassium by ICP positive for potassium
氯chloride ≤ 10 ppm
铁iron ≤ 20 ppm
重金属heavy metals(as lead) ≤ 10 ppm
DNA酶DNases, none detected
RND酶RNases, none detected
蛋白酶proteases, none detected
品级Grade 色谱级,≥99.5% (T)
(for HPLC,≥99.5% (T))
外观appearance white powder
纯度Purity (Titration by NaOH) ≥99.5%
pKa (25 °C) (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
水溶性solubility H2O: soluble0.1 g/mL at 25 °C, clear, colorless
λ 10 % in H2O
UV absorption λ: 210 nm A: ≤0.1
λ: 220 nm A: ≤0.06
λ: 230 nm A: ≤0.04
λ: 300 nm A: ≤0.02
λ: 500 nm A: ≤0.02
test for RP gradient corresponds to standard
filter test corresponds to standard
危险性质
危险品标志 F,T,C,Xi
危险类别码 36/38-35-22
WGK Germany 2
RTECS号 TC6615500
海关编码 28352400
安全说明 24/25-45-36/37/39-26
用途及存储
- 用途 用作肥料、调味剂、酿造酵母培养剂,用于制备缓冲溶液,也用于医药及制造偏磷酸钾。
- 用途 用于水稻、小麦、棉花、油菜、烟草、甘蔗、苹果等作物施肥
- 用途 作为饲料补磷添加剂。
- 用途 食品工业中用于制造烘焙物,作膨松剂,调味剂,发酵助剂,营养强化剂,酵母食料。也用作缓冲剂,螯合剂。