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Direct Black 19

ENGLISH NAME:Direct Fast Black G
C.I. NO.: 35255,Direct Black 19
CAS NO: 6428-31-5
MOLECULAR FORMULA: C34H27N13Na2S2O7
MOLECULAR WEIGHT:839.77
Ms Chris Ren: 0086-13702078682
Ms Avril Fang: 0086-15822793627
Direct Black 19
Product Description

ENGLISH NAME:Direct Fast Black G

C.I. NO.: 35255,Direct Black 19
CAS NO: 6428-31-5
EINECS NO:229-208-1
MOLECULAR FORMULA: C34H27N13Na2S2O7
MOLECULAR WEIGHT:839.77

 

NO

Name of Item

Unit

Item of Provision

Result of Examination

1

Appearance

 

Black Powder

Measure Up

2

Shade(compare with standard)

 

Similar~ Slight

Similar

3

Strength(is standard)           

%

100±3

100

4

Moisture                       

%

≤5.0

3.35

5

Insoluble                       

%

≤0.5

0.21

6

Fineness(180μm residue on sieve)  

%

≤5.0

Pass

7

Remarks

Qualified Product

Keyword:
Direct Fast Black G
Direct Black 19
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Email:
avril@xiangruidye.com

 

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