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Sodium Dichromate

Sodium Dichromate

CAS Number: 10588-01-9

Molecular Formula: Na2Cr2O7

About Sodium Dichromate

Sodium dichromate (CAS 10588-01-9) continues to see robust demand across the United States as a foundational inorganic oxidizer, specialized for industrial metal surface finishing, chromate conversion coatings, and wood preservation to mitigate corrosion and biological decay. This vital intermediate is experiencing hei...

Synonyms

  • Na2Cr2O7
  • sodium bichromate
  • sodium bichromate, dihydrate
  • sodium bichromate, monohydrate
  • sodium bichromate, x-Na salt
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Sodium Dichromate Specifications

CAS Number
10588-01-9
Molecular Formula
Na2Cr2O7
Molecular Weight
263.98
IUPAC Name
disodium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium
Canonical SMILES
[O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[Na+].[Na+]
InChI Key
KIEOKOFEPABQKJ-UHFFFAOYSA-N
InChI
InChI=1S/2Cr.2Na.7O/q;;2*+1;;;;;;2*-1
EINECS Number
252-062-5
HSN No
28413000
Molecular Weight
263.98
Melting Point (Experimental)
356.7°C
Density (Experimental)
2.52 g/cm³ Temp: 13 °C
Melting_point
675°F
Boiling_point
400 °C (decomposes)
Solubility
Solubility in water: 77.09 wt% at 40 °C; 82.04 wt% at 60 °C; 88.39 wt% at 80 °C
Density
2.35 at 77 °F (USCG, 1999) - Denser than water; will sink
Hazard Classes and Categories
Ox. Sol. 2 (98.5%) & Aquatic Chronic 1 (> 99.9%) Acute Tox. 3 (> 99.9%) & Acute Tox. 4 (98.5%) & Acute Tox. 2 (> 99.9%) & Aquatic Acute 1 (> 99.9%) Skin Corr. 1B (> 99.9%) & Skin Sens. 1 (> 99.9%) Resp. Sens. 1 (> 99.9%) & Muta. 1B (> 99.9%) Carc. 1B (99.1%) & Repr. 1B (94%) & STOT RE 1 (98.5%)
GHS Hazard Statements
H272, H301, H312, H314, H317, H330, H334, H340, H350, H360FD, H372, H400, H410
Precautionary Statement Codes
P203, P210, P220, P233, P260, P261, P264, P270, P271, P272, P273, P280, P284, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P318, P319, P320, P321, P330, P333+P317, P342+P316, P362+P364, P363, P370+P378, P391, P403, P403+P233, P405, and P501

Chemical Intermediate

A primary base material and feedstock used for the large-scale manufacturing of other chromium compounds, chromic acid, and specialized chromium derivatives

Corrosion Inhibitor

A chemical treatment agent used in metal finishing, passivation, and chromate conversion coatings to provide exceptional oxidation and corrosion resistance for aerospace and defense structures

Wood Preservative

A protective treatment component used in chromated copper arsenate formulations to bind into wood fibers and protect against termites, fungi, and rot

Leather Tanning Agent

An industrial chemical precursor converted into trivalent chromium salts to manufacture soft, durable, and heat-resistant chrome-tanned leather products

  1. Na2Cr2O7
  2. sodium bichromate
  3. sodium bichromate, dihydrate
  4. sodium bichromate, monohydrate
  5. sodium bichromate, x-Na salt

Sodium Dichromate FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

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