Zinc

  • Merrillite
  • Blue powder
Formula
Zn
Structure
Description
Grey dust, lustrous powder or ingot, odorless.
Uses
Galvanizing agent, component in brass, bronze alloys, rolled zinc products, light metal alloy & in wet batteries, chemical intermediate for zinc oxide, desilverizing agent for lead.

Registry Numbers and Inventories.
CAS
7440-66-6
EC (EINECS/ELINCS)
231-175-3
EC Index Number
030-002-00-7
EC Class
Highly flammable
R 10 15
RTECS
ZG8600000
RTECS class
Mutagen; Human Data; Primary Irritant
UN (DOT)
1436
Merck
12,10255
Beilstein/Gmelin
16321 (G)
EPA OPP
129015
Swiss Giftliste 1
G-5341
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
Zn
Formula mass
65.38
Melting point, °C
420
Boiling point, °C
908
Density
7.14 g/cm3
Solubility in water
Insoluble
Heat of fusion
7.3 kJ/mol
Heat of vaporization
114.8 kj/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Keep away from water. Keep containers tightly closed.
B6
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Do not allow water to get into the container because of violent reaction. Avoid contact with skin and eyes. Avoid ingestion and inhalation. Do not allow contact with water. Keep from contact with moist air and steam.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. Do not expose spill to water.
Disposal code
15
Stability
Stable under normal shipping and handling conditions. Combines vigorously or explosively with water.
Incompatibilities
Halogenated agents, strong oxidizing agents, alkali hydroxides.
Decomposition
Toxic fumes of zinc oxide.

Fire.
Autoignition, °C
460
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Water Reactive. Material will react with water and may release a flammable and/or toxic gas. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. May ignite or explode on contact with steam or moist air. Extinguishing media: Use dry sand or earth to smother fire. DO NOT USE WATER! Do NOT get water inside containers. Contact professional fire-fighters immediately. Cool containers with flooding quantities of water until well after fire is out.
Fire potential
Slight as dust exposed to heat or flame.
Hazards
Produce flammable gases on contact with water. May ignite on contact with water or moist air. Some react vigorously or explosively on contact with water. May be ignited by heat, sparks or flames. May re-ignite after fire is extinguished. Some are transported in highly flammable liquids. Runoff may create fire or explosion hazard.
Combustion products
When zinc or one of its alloys is burned, melted, or heated to temperatures above 930 F, zinc metal oxide fume of particle diameter 1 u and below is formed.
Health
2
 
Flammability
0
 
 
Reactivity
0
 
 
Special
W

Health.
Poison_Class
-
Exposure effects
Repeated inhalation may cause chronic bronchitis.
   Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
Inhalation of fumes may cause metal fume fever, which is characterized by flu-like symptoms with metallic taste, fever, chills, cough, weakness, chest pain, muscle pain and increased white blood cell count.
   Skin
Causes skin irritation.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid if irritation develops or persists. Wash clothing before reuse. Flush skin with plenty of soap and water.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
1436
Response guide
Hazard class
4.3
Packing Group
I; II; III
 
HS Code
3822 00 00
 
Std. Transport #
4916466