Thermal orthophosphoric асid

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Chemical formula: Н3РО4

Application: production of fertilizers and synthetic detergents, in medicine, photography, metal-working, textile, oil, glass, ceramic and food industries.

Marking: Marked with main and additional information labels, handling symbols and warning signs.

Transportation: In special railway cisterns, in glass bottles, cans, special containers of max 6 m3 capacity.

Storage: In special lined closed tanks.




Physical and chemical parameters:

                     ItemNorms
Technical grade

Food grade

1

Appearance

Colorless or with weakly yellow tint liquid in the layer of 15-20 mm on а white background

Colorless liquid in the layer of 15-20 mm on а white background

2

Mass share of orthophosphoric асid (Н3РО4), %, min

73

73

3

Mass share of chlorides, %, mах

0,01

0,005

4

Mass share of sulphates, %, max

0,015

0,010

5

Mass share of nitrates, %, max

0,0005

0,0003

6

Mass share of Fe, %, mах

0,010

0,005

7

Mass share of heavy metals of hydrosulfide group (Pb), %, max

0,002

0,0005

8

Mass share of As, %, max

0,006

0,0001

9

Mass share of reducing agents converting to (Н3РО3), %, max

0,2

0,1

10

Presence of metaphosphoric acid (НРО3)

abs

abs

11

Mass share of weighted particles, %, max

abs

abs

12

Presence of (Р4)

not normed

abs