Phosphoric Acid
Formula: H3PO4
MW: 98
Description: colorless, transparent and syrupy liquid. it mixes
with water in all proprtions, producing an amount of heat. it lose
water and convert to pyrophosphoric acid and metaphosphoric acid
further.
Specification |
Tech Grade |
Food Grade |
H3PO4 |
−85% |
−85% |
CL |
+0.0005% |
+0.0005% |
SO4 |
+0.005% |
+0.005% |
FE |
+0.002% |
+0.002% |
AS |
+0.008% |
+0.001% |
PB |
+0.001% |
+0.001% |
Usage: used for phosphate industry, electroplating and chemical
polishing, pharmaceutics and sugar industry, complex fertilizer,
etc.
Packing: in 35kgs net plastic drum.
Trisodium Phosphate
Tech Grade
Formula: Na3PO4N12H2O
MW: 358.14
Property: White or colorless fine crystal.
Specific gravity is 1.62
Melting point is 73.4
Specifications:
Main pontent −98%
SO4 +0.5%
CL +0.3%
UNSOLUBLE +0.1%
Na2O 16-19
Pusage: used as soft water agent, cleaning agent in electroplating,
color fixer in fabric dyeing and flux in enamel ware manufacturiung.
Packing: 25kg/50kg plastic woven bag.
Sodium Hexametaphosphate
Formula: (N4PO3)8
MW: 611.17
Properte: white powder specific gravity is 2.484 at 20≧. melting
point is 616≧, soluble ie water easily but not in organic solvent,
a fint soft water agent.
Specifications |
Tech Grade |
Food Grade |
P2O5 |
−68% |
−68% |
Unactive P2O5 |
+7.5% |
+7.5% |
Unsoluble |
+0.05% |
+0.06% |
PH |
5.8-7.3 |
5.8-6.5 |
As |
|
+0.0003% |
Heavy metal |
|
+0.001% |
F |
|
+0.003% |
Usage: for food grade, it is mainly used as additive
agent, ph adjustive agent and ferment agent, nourishment. as for
tech. grade, it is mainly used as soft water agent in the solution
for printing and dyeing and boiler; diffusant of papermaking; slow
corrodent, floating agem, dispersing medium, high temperature agglomerant,
detergent and soil analytical chemistry reagent.
Packing: 25kg/50kg plastic woven bag.
Sodium Tripolyphosphate
Formula: Na5P3O10
MW: 367.88
Specification |
Food Grade |
Tech Grade |
Na5P3O10 |
−90% |
−90% |
P2O5 |
−57% |
−57% |
FE |
+0.01% |
+0.015% |
Insolubles |
+0.1% |
+0.1% |
CL |
+0.5% |
|
PB |
+0.001% |
|
As |
+0.0003% |
|
PH (1% solution) |
9.5-9.9 |
9.2-10.0 |
Packing: in 25/50kgs plastic woven bag.
Potassium Phosphate
Monobascic Tech Grade
Formula: KH2PO4
MW: 136.09
Property: Colorless crystal or white grystal powder. density is
2.338, melting point is 252.6 ≧
Specifications:
Main content −98%
Moisture +3%
PH 4.4-4.6
Unsoluble +0.3%
CL +0.2%
FE +0.003%
As +0.005%
Heavy Metal +0.005%
Usage: high effect fertilizer, culture medium, ferment agent.
Packing: 25kg/50kg plastic woven bag.
Monoammonum Phosphae
Formula: (NH3)H2PO4
Relative Molecular Weight: 115.03
Properties: colorless transparent square crystal, easy to be solved
in water, insoluble in methyl acetyl and stable in the air. The
PH value of its aqueous solution is acid.
Technical Standards:
(NH3)H2PO4
99.68%
Insolubles 0.01%
H2O 0.027%
CL 0.0012%
SO4 0.02%
Fe 0.0016%
Pb 0.004%
As 0.006%
PH 4.8
Packing: 25/50kg plastic woven bag.
Diammonium Phosphae
Formula: (NH4)2H2PO4
Relative Molecular Weight: 132.06
Properties: colorless transparent monoclinic crystal or white
powder, easy to be solved in water, and insoluble in alcohol, acetone,
and nitrogen. The PH value of its aqueous solution is basicity.
Technical Standards:
(NH4)2H2PO4
100.4%
Nusoluble 0.003%
H2O 0.08%
P2O3
53.98%
N 21.3%
CL 0.0012%
SO4 0.032%
Fe 0.0016%
As 0.004%
Pb 0.0012%
PH 8
Packing: in 25/50kg plastic woven bag.
Monosodium Phosphate
Application and Directions:
1. Applied in boiler water treatment and electroplating. Used
as the raw material for preparing calgon and polyphosphate sodium.
Applied in cleaning, acidity buffering agent, dye auxiliaries, bonding
of mica, baking powder, chemical industry, emulsifying agent, etc.
2. keep it in dry and ventilating storehouse, pay attention to
dry and heat proof in transportation, and keep it away from poisonous
articles.
Quality Standards:
Index Name |
Index |
NaH2PO4.2H2O
% > |
98.0 |
SO4 % < |
0.25% |
CL % |
0.014 |
Unsoluble % < |
0.05 |
FE % < |
0.01 |
Heavy Metal % < |
0.002 |
AS % < |
0.005 |
PH |
4.2-4.6 |
F % < |
|
Dipotassium hydrogen
phosphat
Phosphoric anhydride(P2O5) >40.2%
Dipotassium oxide(K2O)>53%
PH(solution) 8.2
|