EPA Method for Determining the Compatibility of Chemical Mixtures

Chemical Compatibility Chart

EPA-600/2-80-076 April 1980
A METHOD FOR DETERMINING THE COMPATIBILITY OF CHEMICAL MIXTURES

Municipal Environmental Laboratory
Office of Research and Development
U.S. Environmental Protection Agency
Cincinnati, Ohio 45268

Caution: This Chart is intended as an indication of some of the hazards that can be expected on mixing chemical wastes. Because of the differing activities of the thousands of compounds that may be encountered, it is not possible to make any chart definitive and all inclusive. It cannot be assumed to ensure compatibiltiy of wastes because wastes are not sclassified as hazardous on the chart, nor do any blanks necessarily mean that the mixture cannot result in a hazard occuring. Detailed instructions as to hazards involved in handling and disposing of any given waste should be obtained from the originator of the waste.

No. Reactivity Group Name

1 Acids, Mineral, Non-oxidizing 1
Legend
Code Consequences

H Heat Generation

F Fire

G Innocuous and non-flammable gas generation

GT Toxic Gas formation

GF Flammable Gas formation

E Explosion

P Violent Polymerization

S Solubilization of toxic substance

U May be hazardous, but Unknown

2 Acids, Mineral, Oxidizing 2

3 Acids, Organic G
H 3

4 Alcohols and Glycols H H
F H
P 4

5 Aldehydes H
P H
F H
P 5

6 Amides H H
GT 6

7 Amines, Aliphatic and Aromatic H H
GT H H 7

8 Azo Compounds, Diazo Compounds and Hydrazines H
G H
GT H
G H
G H 8

9 Carbamates H
G H
GT G
H 9

10 Caustics H H H H H
G 10

11 Cyanides GT
GF GT
GF GT
GF G 11

12 Dithiocarbamates H,F
GF H,F
GF H,GT
GF GF
GT U H
G 12

13 Esters H H
F H
G H 13

14 Ethers H H
F 14

15 Fluorides, Inorganic GT GT GT 15

16 Hydrocarbons, Aromatic H
F 16

17 Halogenated Organics H
GT H,F
GT H
GT H
G H
GF H 17

18 Isocyanates H
G H,F
GT H
G H
P H
P H
G H,P
G H
G U 18

19 Ketones H H
F H
G H H 19

20 Mercaptans and Other Organic Sulfides GT
GF H,F
GT H
G H H H 20

21 Metals, Alkali and Alkaline Earth, Elemental H,F
GF H,F
GF H,F
GF H,F
GF H,F
GF GF
H GF
H GF
H GF
H GF
H GF
H GF,H
GT GF
H H
E GF
H GF
H GF
H 21

22 Metals, Other Elemental & Alloys as Powders, Vapors, or Sponges H,F
GF H,F
GF G
F H,F
GT U GF
H H
E GF
H H,F
GF 22

23 Metals, Other Elemental & Alloys as Sheets, Rods, Drops, etc. H,F
GF H,F
GF H,F
G H
F 23

24 Metals and Metal Compounds, Toxic S S S S S S 24

25 Nitrides GF
HF H,F
E H
GF H,E
GF GF
H U H
G U GF
H GF
H GF
H GF
H U GF
H GF
H E 25

26 Nitriles H,GT
GF H,F
GT H U H
P S GF
H 26

27 Nitro Compounds, Organic H,F
GT H H
E H,E
GF H,E
GF 27

28 Hydrocarbons, Aliphatic, Unsaturated H H
F H H
E 28

29 Hydrocarbons, Aliphatic, Saturated H
F 29

30 Peroxides and Hydroperoxides, Organic H
G H
E H
F H
G H
GT H,F
E H,F
GT H,E
GT H,F
GT H
E H E H,F
GT H
E H
G H
G H,E
GF H,P
GT H
P � 30

31 Phenols and Cresols H H
F H
G H
P GF
H GF
H H 31

32 Organophosphates, Phosphothioates, Phosphodithioates H
GT H
GT U H
E H U 32

33 Sulfides, Inorganic GT
GF HF
GF GT H E H H
GT 33

34 Epoxides H
P H
P H
P H
P U H
P H
P H
P H
P U H
P H
P H
P H
P H
P H
P H
P U H
P 34

101 Combustible and Flammable Materials, Miscellaneous H
G H,F
GT H,F
G H,F
GF H,F
GT 101

102 Explosives H
E H
E H
E H
E H
E H
E H
E H
E H
E E E H
E H
E H
E H
E H
E 102

103 Polymerizable Compounds P
H P
H P
H P
H P
H P
H U P
H P
H P
H P
H P
H P
H P
H P
H H
E 103

104 Oxidizing Agents, Strong H
GT H
GT H
F H
F H,F
GT H,F
GT H
E H,F
GT H,E
GT H,F
GT H
F H
F H
F H
GT H,F
GT H
F H,F
GT H,F
E H,F
E H
F H,F
E H,F
GT H
E H
F H
F H
G H
F H,F
GT H,F
GT H,F
G H,F
G H
E H,F
GT 104

105 Reducing Agents, Strong H
GF H,F
GT H
GF H,F
GF H,F
GF H
GF H
G H
GT H
F H,F
E H
E H
GF H
GF H
GF H
GF H
E H
E H
GF H,GT
GF H H
GF H
E H,P
GF H,F
E 105

106 Water and Mixtures Containing Water H H G H
G H
GF H
GF S H
GF GT
GF GF
GT 106

107 Water Reactive Substances <---------EXTREMELY REACTIVE!!!! DO NOT MIX WITH ANY CHEMICAL OR WASTE MATERIAL!!!! EXTREMELY REACTIVE!!!!--------------> 107

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 101 102 103 104 105 106 107