精品无吗Av一区二区_Phosphoric acid - Industry - 四川什邡市川鴻磷化工有限公司，六偏磷酸鈉廠(chǎng)家，磷酸三鈉廠(chǎng)家，磷酸氫二銨廠(chǎng)家—

Product Producto

Industrycurrent location：Product > Industry

Phosphoric acid

Source：

Time：2018-04-09 21:59:58

Click：

Detailed introduction：

Detailed introduction:

Chemical formula: H3PO4
Molecular weight: 98.0
Property: colorless and transparent viscous liquid. Specific gravity 1.70, soluble in water and emits heat. After high temperature heating, it will lose water to produce pyrophosphoric acid and metaphosphoric acid. It will be crystallized when it is cooled for a long time. It is corrosive, easy to absorb moisture and sealed and stored.
Technical indicators:

No.	Index name	Industrial grade	Gifted class
1	H₃PO₄%≥	85.0	85.0
2	Chloride (measured as Cl) %≤	0.0005	0.0005
3	Sulfate (measured as SO4) %≤	0.005	0.005
4	Iron (Fe) %≤	0.002	0.002
5	Arsenic (in AS) %≤	0.005	0.0001
6	Heavy metal (Pb) %≤	0.001	0.001
7	Fluoride (in F) %≤	-	0.001
8	Chroma %≤	30	20