等级
ACS reagent
质量水平
蒸汽密度
3.4 (vs air)
蒸汽压
2.2 mmHg ( 20 °C)
5 mmHg ( 25 °C)
检测方案
≥85% H3PO4 basis (by NaOH, titration)
形式
liquid
浓度
≥85 wt. % in H2O
技术
NMR: suitable
杂质
reducing substances, passes test
≤0.001% volatile acids (as CH3COOH)
颜色
APHA: ≤10
bp
158 °C (lit.)
mp
~40 °C (lit.)
密度
1.685 g/mL at 25 °C (lit.)
痕量阴离子
chloride (Cl-): ≤3 ppm
nitrate (NO3-): ≤5 ppm
sulfate (SO42-): ≤0.003%
痕量阳离子
As: ≤1 ppm
Ca: ≤0.002%
Fe: ≤0.003%
K: ≤0.005%
Mg: ≤0.02%
Mn: ≤0.5 ppm
Na: ≤0.025%
Sb: ≤0.002%
heavy metals: ≤0.001% (by ICP)
SMILES字符串
OP(O)(O)=O
InChI
1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
InChI key
NBIIXXVUZAFLBC-UHFFFAOYSA-N
基因信息
human ... SRC(6714)
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一般描述
磷酸 (H 3 PO 4 ) 在工业上用于处理金属表面以获得更好的涂料和树脂涂层的附着力。
应用
磷酸可用作测定普通磷脂的磷-31核磁共振(31磷核磁共振)化学位移的标准。它可用于以下研究:
- 作为31P核磁共振波谱分析人脑白质脂质组成的外部标准。
- 31P NMR波谱作为组蛋白H4酸不稳定磷酸化的外部标准。
- 作为参考标准,通过反应前和反应后质谱31核磁共振和傅里叶变换红外光谱法研究二氧化硅/氧化铝负载的磷酸钠上存在的表面物质。
- 作为催化剂在一系列表面改性和未改性的ZSM-5上(623K)苯乙酸酯的气相弗里斯重排。
其他说明
浓磷酸大约为 85% H3PO4(水溶液)。
警示用语:
Danger
危险声明
危险分类
Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
法规信息
危险化学品
A simple method of increasing the adhesion of acrylic filling materials to enamel surfaces.
Journal of Dental Research, 34(6), 849-853 (1955)
Internal versus external surface active sites in ZSM-5 zeolite: Part 1. Fries rearrangement catalyzed by modified and unmodified H3PO4/ZSM-5.
Applied Catalysis A: General, 298, 32-39 (2006)
FTIR and 31 P-NMR spectroscopic analyses of surface species in phosphate-catalyzed lactic acid conversion.
J. Catal., 164(1), 207-219 (1996)
Biochemistry, 20(12), 3658-3664 (1981-06-09)
Phosphorus-31 nuclear magnetic resonance (31P NMR) is used to investigate acid-labile phosphorylation of histone H4. 31P NMR detects phosphorylated histidine residues in in vitro enzymatically phosphorylated H4. The source of kinase is nuclei from either regenerating rat liver or Walker-256
Journal of lipid research, 29(5), 679-689 (1988-05-01)
The common phospholipids from biological sources were quantitated using phosphorus-31 nuclear magnetic resonance (NMR) spectroscopy in conjunction with an analytical reagent composed of two parts: 1) 2 ml of reagent chloroform in which was dissolved 0.01-100 mg of crude tissue
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