| GB/T 1282-1996 项目Item 优级纯 分析纯 (GR) (AR) 含量(H3PO4)Assay,% ≥ 85.0 85.0 色度,黑曾单位Color(APHA),% ≤ 10 25 灼烧残渣Ignition residue,% ≤ 0.1 0.2 挥发酸Volatile acid,% ≤ 0.02 0.02 氯化物(Cl)Chloride,% ≤ 0.0002 0.0003 硫酸盐(SO4)Sulfate,% ≤ 0.001 0.003 硝酸盐(NO3)Nitrate,% ≤ 0.0003 0.0005 砷(As)Arsenic,% ≤ 0.001 0.0001 铁(Fe)Iron,% ≤ 0.001 0.002 钠(Na)Sodium,% ≤ 0.05 -- 钾(K)Potassium,% ≤ 0.005 -- 锰(Mn)Manganese,% ≤ 0.0002 0.0002 镍(Ni)Nickel,% ≤ 0.0005 -- 铜(Cu)Copper,% ≤ 0.0005 -- 锌(Zn)Zinc,% ≤ 0.001 -- 镉(Cd)Cadmium,% ≤ 0.0005 -- 铅(Pb)Lead,% ≤ 0.0005 -- 重金属(以Pb计)Heavy metals,% ≤ -- 0.001 还原物质(以H3PO4 计)Reducing substances,% ≤ 0.005 0.01
项目 电子级磷酸 含量(P2O5) % 63.0-68.0 熔点 ℃ 35.0-42.3 外观 不规则粉末 硝酸盐(NO3) ppm ≤5 硫酸盐(SO4) ppm ≤5 氯化物(Cl) ppm ≤5 铝(Al) ppb ≤20 锑 (Sb) ppb ≤300 砷 (As) ppb ≤10 钡 (Ba) ppb ≤20 镉 (Cd) ppb ≤10 钙 (Ca) ppb ≤50 铬 (Cr) ppb ≤10 钴(Co) ppb ≤20 铜 (Cu) ppb ≤20 金 (Au) ppb ≤5 铁(Fe) ppb ≤50 铅 (Pb) ppb ≤10 锂 (Li) ppb ≤10 镁 (Mg) ppb ≤20 锰 (Mn) ppb ≤10 镍(Ni) ppb ≤10 钾 (K) ppb ≤20 银 (Ag) ppb ≤10 钠 (Na) ppb ≤50 锶 (Sr) ppb ≤10 锌 (Zn) ppb ≤10
ACS级 项目名称Item ACS Grade 含量(H3PO4)Assay ≥85.0% 色度,黑曾单位Color(APHA) ≤10 水不溶物Insoluble matter ≤0.001% 氯化物(Cl)Chloride(Cl) ≤3ppm 硝酸盐(NO3)Nitrate ≤5ppm 硫酸盐(SO4)Sulfate ≤0.003% 挥发酸(以乙酸计)Volatile acids(as CH3COOH) ≤0.001% 锑(Sb)Antimony(Sb) ≤0.002% 钙(Ca)Calcium(Ca) ≤0.002% 镁(Mg)Magnesium(Mg) ≤0.002% 钾(K)Potassium(K) ≤0.005% 钠(Na)Sodium(Na) ≤0.025% 砷(As)Arsenic(As) ≤1ppm 重金属(以Pb计)Heavy metals(as Pb) ≤0.001% 铁(Fe)Iron(Fe) ≤0.003% 锰(Mn)Manganese(Mn) ≤0.5ppm 还原性物质Reducing substances Passes test
品级Grade 色谱纯 (grade for HPLC) 外观description crystals 含量assay 85-90% (T) 熔点mp ~40 °C λ neat 紫外吸光度UV absorption λ: 210 nm ≤0.07 λ: 220 nm ≤0.05 λ: 230 nm ≤0.04 λ: 250 nm ≤0.04 λ: 500 nm ≤0.02 RP gradient test complies
品级Grade 药用级 (Ph. Eur., BP, NF, FCC) assay 85.0-88.0% alkali phosphates, in accordance residual solvents, in accordance substance precip. by Ammonia, in accordance heavy metals (as Pb) ≤0.0005% volatile acids (as CH3COOH) ≤0.001% anion traces chloride (Cl-): ≤5 ppm fluoride (F-): ≤5 ppm nitrate (NO3-): ≤5 ppm nitrate (NO3-): in accordance phosphite, hypophosphite (as H3PO3): ≤30 ppm sulfate (SO42-): ≤50 ppm sulfate (SO42-): in accordance cation traces As: ≤2 ppm Cd: ≤3 ppm Cu: ≤10 ppm Fe: ≤10 ppm Hg: ≤1 ppm Pb: ≤3 ppm Zn: ≤10 ppm suitability passes test for appearance of solution |