A PHP Error was encountered

Severity: Warning

Message: fopen(/var/cpanel/php/sessions/ea-php83/ci_sessionc53e47223fed7e2e0104440bdc7b4a9a0df5687b): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 178

Backtrace:

File: /home/chemnovo/public_html/pallavchemicals.com/application/controllers/Pallav.php
Line: 5
Function: __construct

File: /home/chemnovo/public_html/pallavchemicals.com/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/cpanel/php/sessions/ea-php83)

Filename: Session/Session.php

Line Number: 138

Backtrace:

File: /home/chemnovo/public_html/pallavchemicals.com/application/controllers/Pallav.php
Line: 5
Function: __construct

File: /home/chemnovo/public_html/pallavchemicals.com/index.php
Line: 315
Function: require_once

1,2-Naphthoquinone-4 Sulphonic Acid Sodium salt 97% AR | 01784 Pallav Chemicals | MSDs COA

Home > Pallav Chemicals > Laboratory Chemicals > 1,2-Naphthoquinone-4 Sulphonic Acid Sodium salt 97% AR

1,2-Naphthoquinone-4 Sulphonic Acid Sodium salt 97% AR
(For determination of amines and amino acid) Sodium 1,2-naphthoquinone-4-sulphonate

Product Code.
 01784
Grade
Purity
 97%
CAS No.
 521-24-4
Molecular Formula
 C10H5NaO5S
Molecular Weight
 260.20
H.S.Code
 2914.79900
Shelf Life
 60 Months
COAs

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)

Packaging

Specification

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 and Hazard Symbols

Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338