Assay (GC) % Min 99.7
Melting point °C 79.5 81
Product code:
C.A.S. :
EINECS :
514220500
91-20-3
202-049-5
Analytical Reagent
MW=
Naphthalene
C H
128.17
10 8
500 gr
H228-H351-H400-H410-H302
P210-P280-P281-P301-P312-P405-P501A
Appearance Dark green powder
Absorptionmaxima inwater 710 - 720 nm
Absorptivity (A1 cm1%
œ
max. water,on dried substance) Min 100
Loss on drying (at 105 °C) % Max 10
Product code:
C.A.S. :
EINECS :
514210025
19381-50-1
243-010-2
MW =
Naphthol green B
For Microscopy
C H FeN Na O S
878.450
30 15
3 3 15 3
25 gr
Assay% Min 99
Melting point °C 95 - 97
Insolublematter inmethanol % Max 0.01
Iron (Fe) % Max 0.001
Chloride (Cl) % Max 0.005
Heavymetals (as Pb) % Max 0.001
2-Naphthol % Max 0.2
Naphthalene% Max 0.2
Water % Max 0.2
Sulfated ash% Max 0.01
Product code:
514090100
C.A.S. :
90-15-3
EINECS :
201-969-4
1
-Naphthol
Analytical Reagent
C H O
MW =144.17
10 8
100 gr
H318-H302-H312-H335-H315
P261-P305-P351-P338-P302-P352-P321-P405-P501
Assay% Min 99
Melting point °C 121 - 123
Chloride (Cl) % Max 0.005
Heavymetals (as Pb) % Max 0.001
Iron (Fe) % Max 0.001
1-Naphthol % Max 0.1
Naphthalene% Max 0.1
Sulfated ash% Max 0.01
Water % Max 0.2
Product code:
C.A.S. :
EINECS :
514080100
135-19-3
205-182-7
2-Naphthol
Analytical Reagent
C H O MW =144.17
10 8
100 gr
H400-H302-H332
P261-P273-P301-P312-P304-P312-P501
Assay (ByGC) % Min 98.0
Melting point °C 47 - 50
Product code:
C.A.S. :
134-32-7
EINECS :
205-138-7
514070500
1-Naphthylamine
Laboratory Reagent
C H N MW =143.19
10 9
500 gr
H350-H302-H411
P281-P273-P301-P312-P308-P313-P405-P501A
Appearance Pale yellowcolored solution
Sensitivity to ammonia Passes test
Product code:
C.A.S. :
EINECS :
514110250
7783-33-7
231-990-4
Nessler’s reagent
Laboratory Reagent
250 ml
H300-H310-H330-H373-H400-H410
P260-P301-P310-P304-P340-P320-P330-P361-P405-P501A
Dyecontent (Spectrophotometry) % Min 60
Transition range (pH6.8 - 8.0) Violet Red - Yellow
Solubility 0.1% (in 50%EtOH) Clear solution
Absorption Maximum (50 % EtOH + 2 ml
Acetic Acid
œ
max.) 539 - 544 nm
Absorptivity (A1%,1cm in 50% EtOH + 2 ml
Acetic Acid,at
œ
max.) Min 900
Loss on drying (at 110 °C) % Min 12
Product code:
414180010/0025
C.A.S. :
553-24-2
EINECS :
209-035-8
Neutral Red C.I.50040
Analytical Reagent
C H ClN MW =288.78
15 17
4
10 gr
25 gr
Assay% Min 98.0
pH (5% inwater) 3.5 to5.5
Sulfate (SO ) % Max 0.005
4
Lead (Pb) % Max 0.002
Calcium(Ca) % Max 0.005
Iron (Fe) % Max 0.001
Cobalt (Co) % Max 0.005
Copper (Cu) % Max 0.001
Sodium(Na) % Max 0.01
Zinc (Zn) % Max. 0001
Product code:
314040500
C.A.S. :
7791-20-0
EINECS :
231-743-0
Nickel chloride hexahydrate
Analytical Reagent
NiCl .6H O MW =237.69
2
2
500 gr
H350-H302-H411
P281-P273-P301-P312-P308-P313-P405-P501A
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