Phosphate Chemcials

 

Monoammonium Phosphate (MAP)

MF:  NH4H2PO4

Specifications

Industrial Grade

Food Grade

Main contents  as NH4H2PO4     %

99.0

99.0

Phosphorus pentoxide as P2O5    %

61.0

61.0

Nitrogen, as N               %

12.0

12.0

Water insoluble             %

0.10

0.05

Moisture                         %

0.2

0.2

PH

4.4-4.8

4.4-4.8

Heavy metals, as Pb      %

 

0.001

Arsenic, as As               %

 

0.0003

Fluoride as F                 %

 

0.002

Diammonium Phosphate

MF: (NH4)2HPO4

Specifications

Industrial Grade

Food Grade

Main content%

98.0

98.0

Phosphorus pentoxide%

53.0

53.0

Nitrogen, as N %

20.8

20.8

PH value of 1% solution

7.8-8.2

7.8-8.2

Moisture %

0.2

0.2

Heavy metals, as Pb %

 

0.001

Arsenic, as As%

 

0.0003

Fluoride as F%

 

0.005

Water insoluble %

0.10

0.10

Dicalcium Phosphate

Dicalcium Phosphate Dihydrate      FM: CaHPO4.2H2O

Name of index

Food grade FCCIV

USP25

Dental grade

Appearance

White powder

White powder

White powder

Content, %

97.0-105.0

98.0-105.0

98.5 min.

Fluoride ,ppm

50 max.

50 max.

50 max.

Loss on ignition,%

24.5-26.5

24.5-26.5

24.5-26.5

Heavy metals, ppm

15 max.

10 max.

10 max.

As, ppm

3 max.

1 max.

3 max.

Pb, ppm

2 max.

1 max.

2max.

Fineness

(pass 45µm),%

Standard

Standard

99.0 min.

Acid Insolubles,%

0.2 max.

 0.2max.

0.2max

Carbonate

  /

Pass test

Pass test

Chloride, %

  /

0.25 max.

0.03 max.

Sulfides

  /

0.5 max.

Pass test

Barium

  /

Pass test

Pass test

Yeast/Mold,cfu/g

  /

10 max.

500 max.

Aerobic plate count,cfu/g

  /

10 max.

100 max.

Organic volatile impurity

  /

Pass test

 /

PH value(20% turbid liquid)

  /

  /

6.8-8.1

P2O5,%

  /

  /

40.5-42.5

CaO,%

  /

  /

31.4-32.9

Titration value

  /

  /

57-61

Whiteness, %

  /

  /

95 min.

Absorptive water capacity(ml/20g)%

  /

  /

5.0-6.5

Stability

  /

  /

Pass test

60 D.C. Water Loss, %

  /

  /

0.6 max.

Set Test

  /

  /

Pass Test

Tricalcium Phosphate

FM:  Ca3PO4H2O     CAS No.: 7758-87-4

Name of index

Technical Grade

Food Grade

Content (as Ca),%

34.0

34.0

Heavy metal (as Pb),%

0.002

0.0015

Arsenic (as As),%

0.0003

0.0003

Pb,%

---

0.0005

Fluorides (as F),%

0.0075

0.0075

Loss on heating at 200C, %

10.0

---

Loss on ignition at 800C, %

---

10.0

Clear grade,

Slightly turbid

---

Monopotassium Phosphate

MF: KH2PO4                     CAS No.: 7778-77-0 

Index

Industrial grade

Food grade

Main content(as KH2PO4)%

99.0

99.0

Phosphorus pent-oxide(as P2O5)%

51.50

51.50

Oxide(K2O)%

34.0

34.0

PH value

4.4-4.8

4.4-4.8

Moisture%

0.2

0.2

Heavy metal(as Pb)%

 

0.001

Arsenic(As)%

 

0.0003

Fluoride(as F)%

 

0.005

Water insoluble %

0.10

0.10

Dipotassium Phosphate

MF:  K2HPO4.3H2O      CAS No.: 7758-11-4               EINECS No.: 231-834-5

 Index

Industrial Grade

 Food grade

Main content

98.0% min.

98.0% min.

P2O5

30.50% min.

30.50% min.

K2O

39.5% min.

39.5% min.

pH of 1% water solution

8.8-9.2

8.8-9.2

Moisture

3.0% max.

3.0% max.

Heavy metal, as Pb

 -

0.001% max.

Arsenic, as As

-

0.0003% max.

Fluoride ,as F

 -

0.003% max.

Water insoluble

0.10% max.

0.10% max.

Tripotassium Phosphate

MF:  K3PO4                     CAS NO.:7778-53-2                 H.S NO.:28352400

 Index

Industrial Grade

 Food grade

Main content

98 min

98 min

Phosphorus pentoxide as P2O5

32.8 min

32.8 min

Potassium oxide as K2O

65.0 min

65.0 min

PH of 1% water solution

11.5-12.5

11.5-12.5

Size(through 60mesh sieve)

90 min

90 min

Heavy metal as Pb

--

0.001 max

Arsenic as As

--

0.0003 max

Fluoride as F

--

0.005 max

Water insoluble

0.1 max

0.05 max

Tetrapotassium Pyrophosphate

MF: K4P2O7              CAS No.: 7320-34-5 

Index

Technical Grade

Food Grade

Main content                 %

96.0

96.0

Iron(Fe)                        %

0.03

0.03

Water insoluble matter %

0.1

0.1

Heavy Metals,as Pb      %

 

0.001

Arsenic(As)                   %

 

0.0003

PH Value

10.0-10.7

 

Ortho Phosphate

Pass test

 

Monosodium Phosphate 

MF: NaH2PO4                           CAS No.: 7558-80-7                EINECS No.: 231-449-2

 Index

Technical Grade

Food Grade

Monosodium Phosphate NaH2PO4   %

98.0-103.0

98.0-103.0

Phosphorus pentoxide  min%

58.00

58.00

Water Insoluble               %

0. 2

0. 2

pH (1% solution)

4.2-4.6

4.2-4.6

Arsenic (As)                    %

 

0.0003

Heavy Metal (as Pb)       %

 

0.001

Fluoride (as F)                 %

 

0.005

Loss on Ignition              %

 

2.0

Disodium Phosphate

MF: Na2HPO4.n(H2O)            CAS No.: 10039-32-4           EINECS No.: 231-448-7

Name of Index

Technical Grade

Food Grade

Disodium Phosphate Na2HPO4   %

98.0

98.0

Water Insoluble             %

0.10

0.10

Arsenic (As)                   %

 

0.0003

Heavy Metal (as Pb)      %

 

0.001

Fluoride (as F)                %

 

0.005

Loss on lgnition              %

 

5.0

PH (1% aqueous solution)

 

8.5-10

Trisodium Phosphate

MF: Na3PO4  or Na3PO4.12H2O      CAS No.: 7601-54-9          EINECS No.: 231-509-8

Name of Index

Na3PO4

Technical Grade

Na3PO4  

Food  Grade

Na3PO4.12H2O

Food Grade

Main contents                   % 

98.0

98.0

 

Phosphorus pentoxide      % 

39.5

39.5

18.3

Sodium oxide, as Na2O

36-40

36-40

15.5-19

Sulfate, as SO4                 % 

 

0.25

0.50

Heavy metal, as Pb          % 

 

0.001

 

Arsenic, as As                  % 

 

0.0003

 

Fluoride as F                    % 

 

0.005

 

Water insoluble                % 

0.10

0.10

 

Sodium Pyrophosphate

MF: Na4P2O7                     CAS No.: 7722-88-5               EINECS No.: 231-767-1

 

Technical Grade

Food Grade

 

Sodium Pyrophosphate

Anhydrous

Sodium Pyrophosphate

Sodium Pyrophosphate

Anhydrous

Sodium Pyrophosphate

Content                   %  

97.0

98.0

97.0

98.0

Water Insoluble     % 

0.20

0.10

0.20

0.10

PH of (10g/l solution)

9.9-10.7

9.9-10.7

9.9-10.7

9.9-10.7

Orthophosphate

Pass the test

Pass the test

Pass the test

Pass the test

Arsenic (As)            %  

---

---

0.0003

0.0003

Heavy Metals (Pb)  %  

---

---

0.001

0.001

Fluoride (F)              % 

---

---

0.005

0.005

Loss on Ignition      %  

---

---

0.50

38.0-42.0

 Sodium Tripolyphosphate (STPP) 
MF:  
Na5P3O10            CAS Number: 7758-29-4   HS CODE: 28353100 

Items

Technical Grade

Food Grade

Main content                 %

94.0

94.0

P2O5                             %

57.0

57.0

Water insoluble             %

0.1

0.05

Iron (as Fe)                    %

0.015

0.01

pH of 1% water solution

9.2-10.0

9.5-10.0

Density(g/cm 3 )

0.8-1.0

0.8-1.0

Heavy metal (as Pb)     %

0.001

Arsenic (as As)             %

0.0003

Fluoride (as F)              %

0.003

Chloride (as Cl)            %

0.025

Sodium Hexametaphosphate

MF: (NaPO3)6                   CAS No.:10124-56-8

 Items

Technical grade

Food grade

Total phosphate (P2O5)          %

68 

68

Inactive phosphate(P2O5)      %

7.5

7.5

Iron (Fe)                                  %

0.05

0.05

PH value(1% solution)

5.8-7.3

5.8-6.5

Solubility

Qualified

Qualified

Heavy metals (Pb)                   %

--------

0.001

Arsenic (As)                            %

--------

0.0003

Fluoride (F)                             %

--------

0.003

Water insoluble                       %

0.05

0.06

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