Chromic acid (H2Cr2O7), sodium salt (1:1)

261.96754

261.825

252-062-5

124

Sodium dichromate appears as a red or red-orange crystalline solid. May be strongly irritating to skin, eyes and mucous membranes. Used as a corrosion inhibitor, and in the manufacture of other chemicals.

2.5 g/cm³

357°C

400 deg C (decomposes)

Solubility in water, g/100ml at 20°C: 236 (very good)

Storage site should be as close as practical to lab in which carcinogens are to be used, so that only small quantities required for expt need to be carried. Carcinogens should be kept in only one section of cupboard, an explosion-proof refrigerator or freezer (depending on chemicophysical properties ) that bears appropriate label. An inventory should be kept, showing quantity of carcinogen & date it was acquired Facilities for dispensing should be contiguous to storage area.

Odorless

Solutions are acidic, pH of 1% soln 4.0 and pH of 10% soln 3.5.

II

6

1479

45-46-60-61-8-21-25-26-34-42/43-48/23-50/53

53-45-60-61

HX7700000

T+, N, O

Dry. Provision to contain effluent from fire extinguishing. Separated from combustible substances, reducing agents and food and feedstuffs. Well closed. Store in an area without drain or sewer access.

Considered stable

P201, P202, P210, P220, P221, P260, P261, P264, P270, P271, P272, P273, P280, P281, P284, P285, P301+P310, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P304+P341, P305+P351+P338, P308+P313, P310, P312, P314, P320, P321, P322, P330, P333+P313, P342+P311, P363, P370+P378, P391, P403+P233, P405, P501

H272