1,2-NAPHTHOQUINONE-4 SULPHONIC ACID SODIUM SALT
1,2-NAPHTHOQUINONE-4 SULPHONIC ACID SODIUM SALT AR
(For determination of amines and amino acid)
Short Name: 1,2-NAPHTHOQUINONE-4 SULPHONIC ACID SODIUM SALT
Synonym: 3,4-Dihydro-3,4-dioxo-1-naphthalenesulfonic acid sodium salt, Folin’s reagent, Sodium 1,2-naphthoquinone-4-sulfonate
Basic Details
Article No.
LG3175
Grade
AR
Purity
97%
CAS No.
521-24-4
HS Code
2914.7990
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
Brownish yellow
Odour
Odorless
Melting point/ Freezing point [°C]
289 °C
Solubility in water [% weight]
45 g/l (20°C)
Chemical Specifications
Appearance
Brownish yellow powder
Assay
Min 97%
Sulphate (SO4)
Max 0.05%
Total nitrogen (N)
Max 0.05%
Loss on drying (at 105°C)
Max 1%
Suitability (for detection of amino acid)
Passes test
Safety Information & Hazard Symbols
Symbol
GHS07
Signal Word
Warning
Hazardous Statement
H315-H319-H335
Precaution Statement
P261-P305 + P351 + P338