10034-82-9 Usage
Chemical Properties
Different sources of media describe the Chemical Properties of 10034-82-9 differently. You can refer to the following data:
1. yellow deliquescent crystals
2. Sodium chromate, including the hexahydrate, is yellow crystalline solids that can also be used in solution. Disodium dichromate (10588-01-9):
Uses
Different sources of media describe the Uses of 10034-82-9 differently. You can refer to the following data:
1. Corrosion inhibitor, pigment manufactureSodium chromate tetrahydrate is used as a corrosion inhibitor, wood preservative and an auxiliary in textile industry. It serves as an oxidant, which is used to prepare carboxylic acids and ketones from primary and secondary alcohols respectively. Further, it is used as a starting material to prepare other chromium compounds and as a catalyst in organic synthesis especially pharmaceuticals and agro chemicals.
2. Sodium chromate tetrahydrate can be used as an oxidant in organic synthesis and also as a carrier electrolyte in the capillary electrophoresis.
General Description
Odorless bright yellow deliquescent crystals. Aqueous solutions are alkaline.
Air & Water Reactions
Deliquescent. Water soluble.
Reactivity Profile
Sodium chromate tetrahydrate is a strong oxidizing agent. Incompatible with strong acids . Contact with combustible materials may lead to a fire. Toxic chromium oxide fumes may form in fire [USCG, 1999].
Fire Hazard
Literature sources indicate that Sodium chromate tetrahydrate is nonflammable.
Potential Exposure
Used to make dyes, inks, pigments, and other chromates; in leather tanning, a corrosion inhibitor in circulating water systems; metal treatment; a drilling mud additive; chemical intermediate for chromium catalysts; colorimetry, oxidizing agent; bleaching agent; an algicide, fungicide, insecticide; in wood preservation.
Shipping
UN3087 Oxidizing solid, toxic, n.o.s., Hazard Class: 5.1; Labels: 5.1-Oxidizer, 6.1-Poisonous materials, Technical Name Required. UN3085 Oxidizing solid, corrosive, n.o.s., Hazard Class: 5.1; Labels: 5.1-Oxidizer, 8-Corrosive material, Technical Name Required.
Purification Methods
Crystallise the chromate from hot water (0.8mL/g). It is deliquescent.
Check Digit Verification of cas no
The CAS Registry Mumber 10034-82-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,0,3 and 4 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 10034-82:
(7*1)+(6*0)+(5*0)+(4*3)+(3*4)+(2*8)+(1*2)=49
49 % 10 = 9
So 10034-82-9 is a valid CAS Registry Number.
InChI:InChI=1/Cr.2Na.4H2O.4O/h;;;4*1H2;;;;/q;2*+1;;;;;;;2*-1/rCrO4.2Na.4H2O/c2-1(3,4)5;;;;;;/h;;;4*1H2/q-2;2*+1;;;;
