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1. D-Biotin

Specifications:
D-Biotin Content%: >99.8
Loss on Drying%: <0.1
PH (1%aqueous solution) 4.0
Specific Rotatory Power +91
Ignition Residue%: <0.05
Heavy Metal%: <0.0003
Arsenic%: <0.0001
Conclusion: PASS (USP24)

Company: ...

2. Yellow Phosphorus

Specifications:
Mw:123.89
Quality: Yellow waxy solid. Relative density 1.82(20), melting point 44.1 boiling point
280, dissolve in lye, benzene(c6h6), ethanol, chloroform(chcl3), methylbenzene
And carbon disulfide(cs2)but water. Burns easily, ...

3. Diammonium Phosphate

Specifications:
Mw:132.06
Quality: Colorless crystal or white powder. Relative density 1.619, dissolve in water Easily but not in alcohol. Acetone(ch3coch3)and ammonia(nh3)usage: F. G. Be used in making printing and plate making, electron ...

4. Sodium Hexametaphosphate

Phosphorus pentoxide(P2O5)68.0%min.
Inactive phosphate(P2O5)7.5%max.
Water indissoluble:0.1%max.
Iron(Fe):0.05%max.
PH value(1%solution):5.8~7.3

5. Sodium Tripoly Phosphate (STPP)

Industrial Grade Specifications:
Na5P3O10:94% Min.
P2O5:56.5% Min.
Fe:0.01% Max.
Content of I style:10-30
PH Value(10gL solution):9.2~10.0
Water insoluble:0.15% Max.
Whiteness:90% Min.