pyrophosphoric acid

1. A sodium salt of pyrophosphoric acid used as a builder in soaps and detergents.
   一种焦磷酸钠盐，用作肥皂和清洁剂增洁剂。
2. Free silica in geological exploration dust is measured by both Xray diffraction and pyrophosphoric acid methods.
   对粉尘中游离二氧化硅含量进行了X线衍射法和焦磷酸消化法的对比测定。
3. Research on Extractant of Humic Acid from Swampy Soil By Pyrophosphoric Acid
   焦磷酸钠法从沼泽土中提取腐殖酸的实验研究
4. Rapid Determination of Total Pyrophosphoric Acid Group in Pyrophosphate Plating Solution
   焦磷酸盐镀液中总焦磷酸根的快速测定
5. The intumescent flame retardant melamine pyrophosphate was prepared by melamine and pyrophosphoric acid in solvent. Study on Graft Polymerization of Acrylamide onto Carbon Black with Manganic Pyrophosphate Complex as Initiator
   通过焦磷酸与三聚氰胺在溶剂中直接作用合成了膨胀型阻燃剂焦磷酸三聚氰胺.焦磷酸络锰（Ⅲ）引发炭黑表面接枝聚合研究
6. The chemical shifts of pyrophosphoric acid, pyrophosphate mono-ester, pyrophosphate di-ester were distinguished in 31P-NMR spectra.
   确定了焦磷酸、焦磷酸单酯、焦磷酸双酯在31P-NMR谱图中的化学位移。

noun

1. a solid acid formed by reactions of orthophosphoric acid