No.

Item

Standard (CP90)

Test Result

1

Appearance:

White crystalline powder or crystals

Conform

2

Odor test:

Odorless, intensively sweet taste

Conform

3

Identification:

Pass test

Conform

4

Assay:

98.5 - 101.0%

99.00%

5

PH value(10% solution):

5.5 - 7.5

6.5

6

Loss on drying(105 oC):

≤10%

8.50%

7

Cyclohexylamine:

≤10 ppm

8pm

8

Dicyclohexylamine:

≤1 ppm

0.8ppm

9

Sulfate:

≤500 ppm

452pm

10

Aniline:

≤1 ppm

0.9ppm

11

Heavy metal:

0 ppm

0 ppm

12

Selenium:

≤30 ppm

28ppm

13

Sulfamic Acid:

≤0.1%

0.050%

14

Absorbance(270 nm)

≤0.1

                  Assay subject 

Index 

Assay results 

1.Appearance

White crystals or   white  crystalline

powder

Complies

2.Free acid or alkali

4.5~5.5ml

Complies

3.Melting point

No lower than 226-230D.C.

227.10-229.20°C

4.Heavy metals

≤0.001%

<0.001%

5.Water

≤15.0%

13.98%

6.Sodium Saccharin

 Content

98-101%

99.56%

7.Organic volatile

Complies

Complies

8.Readily Carbonizable

Complies

Complies

9.o-&p-

Toluenesulphonamide

 ≤10ppm

Complies

10.Colour of Solution

Lower than B9

Complies

11.Clarity of Solution

Lower than “ I ”

Complies

12.Arsenic

≤3ppm

≤3ppm

13.Selenium

≤30ppm

<30ppm

Results: Quality in accordance with BP98/USP24.