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DDT																				Related Pages
Synonyms & Trade Names
			p,p'-DDT, Dichlorodiphenyltrichloroethane, 1,1,1-Trichloro-2,2-bis(p-chlorophenyl)ethane
CAS No.
			50-29-3
	RTECS No.
			KJ3325000
	DOT ID & Guide
			2761 151

Formula(C6H4Cl)2CHCCl3
	Conversion
	IDLH
			Ca [500 mg/m3]See: 50293

Exposure Limits
			NIOSH RELCa TWA 0.5 mg/m3See Appendix A
					OSHA PEL TWA 1 mg/m3 [skin]
	Measurement Methods
			**NIOSH** S274 (II-3)
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless crystals or off-white powder with a slight, aromatic odor.
					[pesticide]													
										
Molecular Weight354.5	
	Boiling Point230°F (Decomposes)
	Melting Point227°F
	SolubilityInsoluble
	Vapor Pressure0.0000002 mmHg
	Ionization Potential?											
Specific Gravity0.99	
	Flash Point162-171°F
	Upper Explosive Limit?
	Lower Explosive Limit?
Combustible Solid
Incompatibilities & Reactivities
			Strong oxidizers, alkalis
Exposure Routes
			inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
			irritation eyes, skin; paresthesia tongue, lips, face; tremor; anxiety, dizziness, confusion, malaise (vague feeling of discomfort), headache, lassitude (weakness, exhaustion); convulsions; paresis hands; vomiting; [potential occupational carcinogen]
Target Organs
			Eyes, skin, central nervous system, kidneys, liver, peripheral nervous system
Cancer Site[in animals: liver, lung & lymphatic tumors]										
Personal Protection/Sanitation
			(See protection codes) **Skin:**Prevent skin contact
							**Eyes:**Prevent eye contact
							**Wash skin:**When contaminated/Daily
							**Remove:**When wet or contaminated
							**Change:**Daily
							**Provide:**Eyewash, Quick drench
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Skin:**Soap wash promptly
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			**NIOSH****At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:** (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus**Escape:** (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters.Any appropriate escape-type, self-contained breathing apparatus
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0034
					  MEDICAL TESTS: 0065

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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Chemical Names, Synonyms and Trade Names
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
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Z
CAS Numbers
RTECS Numbers
Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
First Aid Procedures Follow NIOSH Facebook
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