Jump to content Jump to navigation menu

Chromotropic acid disodium salt dihydrate, 10 g

≥98,5 %, p.a., ACS
Pack Qty.
4,5-Dihydroxy-2,7-naphthalene disulphonic acid sodium salt
Empirical formula C10H6Na2O8S2 · 2 H2O
Molar mass (M) 400,30 g/mol
Melting point (mp) >300 °C
CAS No. [5808-22-0]
EG-Nr. 204-972-9

Reagents for silver, boron, chrome, mercury, titanium, chromate, formaldehyde, nitrile and nitrate.

Guarantee analysis

€34.90/Pack Qty. 

excl. VAT. | 10 g per Pack Qty.

Art. No. KK30.1

In stock
Free of shipping costs from 125 €
24 hour direct shipment
from 6 Pack Qty. €33.16/Pack Qty.
from 24 Pack Qty. €31.41/Pack Qty.
Carl Roth subscription service

Now recurring orders conveniently delivered as a subscription!

With the new Carl Roth Replenishment Service you can let products be ordered automatically which you need regularly in your lab!

How it works:

Put all products for your subscription in the desired quantity in the basket.


In the shopping cart, select the option "Order shopping cart as subscription" Order as subscription.


Set Starty point and interval for your subscription and submit order!

By the way: Through your account you can customize or delete your subscriptions anytime.

Chromotropic acid disodium salt dihydrate
Selected quantity:   0
  1. Subtotal:  0.00
Order No. Pack Qty. Pack. Price Quantity
KK30.1 10 g glass €34.90
KK30.2 25 g glass €74.90
In stock
Available at short notice
Not available
Delivery date currently unknown
Selected quantity:   0
  1. Subtotal:  0.00


General information

Indicators and Dyes

Carl ROTH offers many indicators and dyes of high purity, which can be used in special applications.

Certificates of Analysis

You can search for and download your certificate of analysis for the selected product here. Please provide your batch number.
The following analysis certificates have been found:

Guarantee analysis

Assay (titr.)≥98,5 %  
Water (KF)8,5-9,5 %  
Appearance of solution (5 % in H2O )clear solution  
Suitability for determination of nitrate and formaldehydecomplies  

0 Reviews

0.0 out of five stars