Name:
Iodine Solution Wij s
Synonym:
Non
CAS:
64-19-7
Section 1 - Chemical Product
MSDS Name:Iodine Solution Wij s
Synonym:Non
Synonym:Non
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 64-19-7 | Acetic acid | 98.4 | 200-580-7 |
| Hazard Symbols: C Risk Phrases: 10 35 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Flammable. Causes severe burns.Corrosive.
Potential Health Effects
Eye:
Contact with liquid or vapor causes severe burns and possible irreversible eye damage.
Skin:
Causes skin burns. May be harmful if absorbed through the skin.
Contact with the skin may cause blackening and hyperkeratosis of the skin of the hands.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. Causes severe pain, nausea, vomiting, diarrhea, and shock.
Inhalation:
Effects may be delayed. Causes chemical burns to the respiratory tract. Exposure may lead to bronchitis, pharyngitis, and dental erosion. May be absorbed through the lungs.
Chronic:
Chronic exposure can lead to iodism characterized by salivation, nasal discharge, sneezing, conjunctivitis, fever, laryngitis, bronchitis, stomatitis, and skin rashes. Chronic exposure to acetic acid may cause erosion of dental enamel, bronchitis, eye irritation, darkening of the skin, and chronic inflammation of the respiratory tract. Acetic acid can cause occupational asthma. One case of a delayed asthmatic response to glacial acetic acid has been reported in a person with bronchial asthma. Skin sensitization to acetic acid is rare, but has occurred.
Flammable. Causes severe burns.Corrosive.
Potential Health Effects
Eye:
Contact with liquid or vapor causes severe burns and possible irreversible eye damage.
Skin:
Causes skin burns. May be harmful if absorbed through the skin.
Contact with the skin may cause blackening and hyperkeratosis of the skin of the hands.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. Causes severe pain, nausea, vomiting, diarrhea, and shock.
Inhalation:
Effects may be delayed. Causes chemical burns to the respiratory tract. Exposure may lead to bronchitis, pharyngitis, and dental erosion. May be absorbed through the lungs.
Chronic:
Chronic exposure can lead to iodism characterized by salivation, nasal discharge, sneezing, conjunctivitis, fever, laryngitis, bronchitis, stomatitis, and skin rashes. Chronic exposure to acetic acid may cause erosion of dental enamel, bronchitis, eye irritation, darkening of the skin, and chronic inflammation of the respiratory tract. Acetic acid can cause occupational asthma. One case of a delayed asthmatic response to glacial acetic acid has been reported in a person with bronchial asthma. Skin sensitization to acetic acid is rare, but has occurred.
Section 4 - FIRST AID MEASURES
Eyes: In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Get medical aid immediately.
Skin:
In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Get medical aid immediately. Wash clothing before reuse.
Ingestion:
If swallowed, do NOT induce vomiting. Get medical aid immediately.
If victim is fully conscious, give a cupful of water. Never give anything by mouth to an unconscious person.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Persons with pre-existing skin disorders or impaired respiratory or pulmonary function may be at increased risk to the effects of this substance. Treat symptomatically and supportively.
Skin:
In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Get medical aid immediately. Wash clothing before reuse.
Ingestion:
If swallowed, do NOT induce vomiting. Get medical aid immediately.
If victim is fully conscious, give a cupful of water. Never give anything by mouth to an unconscious person.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Persons with pre-existing skin disorders or impaired respiratory or pulmonary function may be at increased risk to the effects of this substance. Treat symptomatically and supportively.
Section 5 - FIRE FIGHTING MEASURES
General Information:
Vapors may form an explosive mixture with air. Use water spray to keep fire-exposed containers cool. Wear appropriate protective clothing to prevent contact with skin and eyes. Wear a self-contained breathing apparatus (SCBA) to prevent contact with thermal decomposition products. Reacts with most metals to form highly flammable hydrogen gas which can form explosive mixtures with air.
Flammable liquid and vapor. May be ignited by friction, heat, sparks, or flame. Vapors are heavier than air and may travel to a source of ignition and flash back. Vapors can spread along the ground and collect in low or confined areas.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Use water spray to cool fire-exposed containers. For large fires, use water spray, fog or alcohol-resistant foam.
Vapors may form an explosive mixture with air. Use water spray to keep fire-exposed containers cool. Wear appropriate protective clothing to prevent contact with skin and eyes. Wear a self-contained breathing apparatus (SCBA) to prevent contact with thermal decomposition products. Reacts with most metals to form highly flammable hydrogen gas which can form explosive mixtures with air.
Flammable liquid and vapor. May be ignited by friction, heat, sparks, or flame. Vapors are heavier than air and may travel to a source of ignition and flash back. Vapors can spread along the ground and collect in low or confined areas.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Use water spray to cool fire-exposed containers. For large fires, use water spray, fog or alcohol-resistant foam.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Avoid runoff into storm sewers and ditches which lead to waterways. Wash area with soap and water. Use water spray to disperse the gas/vapor. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Avoid runoff into storm sewers and ditches which lead to waterways. Wash area with soap and water. Use water spray to disperse the gas/vapor. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep away from heat, sparks and flame. Do not get on skin or in eyes. Do not ingest or inhale.
Discard contaminated shoes. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Use only with adequate ventilation.
Storage:
Keep away from heat, sparks, and flame. Keep from freezing. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Do not store near alkaline substances. Acetic acid should be kept above its freezing point of 62F(17C) to allow it to be handled as a liquid.
It will contract slightly on freezing. Freezing and thawing does not affect product quality.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep away from heat, sparks and flame. Do not get on skin or in eyes. Do not ingest or inhale.
Discard contaminated shoes. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Use only with adequate ventilation.
Storage:
Keep away from heat, sparks, and flame. Keep from freezing. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Do not store near alkaline substances. Acetic acid should be kept above its freezing point of 62F(17C) to allow it to be handled as a liquid.
It will contract slightly on freezing. Freezing and thawing does not affect product quality.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 64-19-7: United States OSHA: 10 ppm TWA; 25 mg/m3 TWA Belgium - TWA: 10 ppm VLE; 25 mg/m3 VLE Belgium - STEL: 15 ppm VLE; 38 mg/m3 VLE France - VLE: 10 ppm VLE; 25 mg/m3 VLE Germany: 10 ppm TWA; 25 mg/m3 TWA Japan: 10 ppm OEL; 25 mg/m3 OEL Malaysia: 10 ppm TWA; 25 mg/m3 TWA Netherlands: 10 ppm MAC; 25 mg/m3 MAC Russia: 5 mg/m3 TWA Spain: 10 ppm VLA-ED; 25 mg/m3 VLA-ED Spain: 15 ppm VLA-EC; 37 mg/m3 VLA-EC CAS# 7553-56-2: United Kingdom, WEL - STEL: 0.1 ppm STEL; 1.1 mg/m3 STEL United States OSHA: ; 0.1 ppm Ceiling; 1 mg/m3 Ceiling Belgium - TWA: 0.1 ppm VLE; 1 mg/m3 VLE France - VLE: 0.1 ppm VLE; 1 mg/m3 VLE Germany: 0.1 ppm TWA; 1.1 mg/m3 TWA Germany: Skin absorber Japan: 0.1 ppm OEL; 1 mg/m3 OEL Malaysia: 0.1 ppm Ceiling; 1.0 mg/m3 Ceiling Russia: 1 mg/m3 TWA Spain: 0.1 ppm VLA-EC; 1 mg/m3 VLA-EC CAS# 7782-50-5: United Kingdom, WEL - TWA: 0.5 ppm TWA; 1.5 mg/m3 TWA United Kingdom, WEL - STEL: 1 ppm STEL; 2.9 mg/m3 STEL United States OSHA: ; 1 ppm Ceiling; 3 mg/m3 Ceiling Belgium - TWA: 0.5 ppm VLE; 1.5 mg/m3 VLE Belgium - STEL: 1 ppm VLE; 2.9 mg/m3 VLE France - VLE: 1 ppm VLE; 3 mg/m3 VLE Germany: 0.5 ppm TWA; 1.5 mg/m3 TWA Japan: 0.5 ppm Ceiling; 1.5 mg/m3 Ceiling Malaysia: 0.5 ppm TWA; 1.5 mg/m3 TWA Russia: 1 mg/m3 TWA Spain: 0.5 ppm VLA-ED; 1.5 mg/m3 VLA-ED Spain: 1 ppm VLA-EC; 3 mg/m3 VLA-EC Personal Protective Equipment Eyes: Wear chemical splash goggles.
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 OSHAs 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 64-19-7: United States OSHA: 10 ppm TWA; 25 mg/m3 TWA Belgium - TWA: 10 ppm VLE; 25 mg/m3 VLE Belgium - STEL: 15 ppm VLE; 38 mg/m3 VLE France - VLE: 10 ppm VLE; 25 mg/m3 VLE Germany: 10 ppm TWA; 25 mg/m3 TWA Japan: 10 ppm OEL; 25 mg/m3 OEL Malaysia: 10 ppm TWA; 25 mg/m3 TWA Netherlands: 10 ppm MAC; 25 mg/m3 MAC Russia: 5 mg/m3 TWA Spain: 10 ppm VLA-ED; 25 mg/m3 VLA-ED Spain: 15 ppm VLA-EC; 37 mg/m3 VLA-EC CAS# 7553-56-2: United Kingdom, WEL - STEL: 0.1 ppm STEL; 1.1 mg/m3 STEL United States OSHA: ; 0.1 ppm Ceiling; 1 mg/m3 Ceiling Belgium - TWA: 0.1 ppm VLE; 1 mg/m3 VLE France - VLE: 0.1 ppm VLE; 1 mg/m3 VLE Germany: 0.1 ppm TWA; 1.1 mg/m3 TWA Germany: Skin absorber Japan: 0.1 ppm OEL; 1 mg/m3 OEL Malaysia: 0.1 ppm Ceiling; 1.0 mg/m3 Ceiling Russia: 1 mg/m3 TWA Spain: 0.1 ppm VLA-EC; 1 mg/m3 VLA-EC CAS# 7782-50-5: United Kingdom, WEL - TWA: 0.5 ppm TWA; 1.5 mg/m3 TWA United Kingdom, WEL - STEL: 1 ppm STEL; 2.9 mg/m3 STEL United States OSHA: ; 1 ppm Ceiling; 3 mg/m3 Ceiling Belgium - TWA: 0.5 ppm VLE; 1.5 mg/m3 VLE Belgium - STEL: 1 ppm VLE; 2.9 mg/m3 VLE France - VLE: 1 ppm VLE; 3 mg/m3 VLE Germany: 0.5 ppm TWA; 1.5 mg/m3 TWA Japan: 0.5 ppm Ceiling; 1.5 mg/m3 Ceiling Malaysia: 0.5 ppm TWA; 1.5 mg/m3 TWA Russia: 1 mg/m3 TWA Spain: 0.5 ppm VLA-ED; 1.5 mg/m3 VLA-ED Spain: 1 ppm VLA-EC; 3 mg/m3 VLA-EC Personal Protective Equipment Eyes: Wear chemical splash goggles.
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 OSHAs 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Liquid
Color: amber
Odor: pungent odor - vinegar odor
pH: acidic.
Vapor Pressure: 11 mm Hg @ 20 deg C
Viscosity: Not available.
Boiling Point: 244 deg F
Freezing/Melting Point: 63 deg F
Autoignition Temperature: Not available.
Flash Point: 106 deg F ( 41.11 deg C)
Explosion Limits, lower: 4 vol %
Explosion Limits, upper: 19.9 vol %
Decomposition Temperature: Not available.
Solubility in water: Soluble in water.
Specific Gravity/Density: 1.06
Molecular Formula: Mixture
Molecular Weight: 0
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
Incompatible materials, ignition sources, excess heat.
Incompatibilities with Other Materials:
Metals, acetic anhydride, alcohols, aluminum, amines, ammonia, ammonium nitrate, chlorine trifluoride, magnesium, nitric acid, permanganates, peroxides, sodium hydroxide, sodium peroxide, steel, hydrogen peroxides, acetaldehyde, antimony, caustics (e.g. ammonia, ammonium hydroxide, calcium hydroxide, potassium hydroxide, sodium hydroxide), acid anhydrides, chlorosulfonic acid, oleum, chromium trioxide, potassium hydroxide, carbonates, bromine pentafluoride, perchloric acid, chromic anhydride, potassium-tert-butoxide, calcium salts, ethyleneimine, Attacks some forms of plastics, rubbers, and coatings., 2-aminoethanol, ethylene diamine, phosphorus trichloride, chromic acid anhydride, phosphorus isocyanate, diallyl methyl carbinol + ozone, nitric acid + acetone, xylene, sodium salts.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic gases, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: Has not been reported.
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
Incompatible materials, ignition sources, excess heat.
Incompatibilities with Other Materials:
Metals, acetic anhydride, alcohols, aluminum, amines, ammonia, ammonium nitrate, chlorine trifluoride, magnesium, nitric acid, permanganates, peroxides, sodium hydroxide, sodium peroxide, steel, hydrogen peroxides, acetaldehyde, antimony, caustics (e.g. ammonia, ammonium hydroxide, calcium hydroxide, potassium hydroxide, sodium hydroxide), acid anhydrides, chlorosulfonic acid, oleum, chromium trioxide, potassium hydroxide, carbonates, bromine pentafluoride, perchloric acid, chromic anhydride, potassium-tert-butoxide, calcium salts, ethyleneimine, Attacks some forms of plastics, rubbers, and coatings., 2-aminoethanol, ethylene diamine, phosphorus trichloride, chromic acid anhydride, phosphorus isocyanate, diallyl methyl carbinol + ozone, nitric acid + acetone, xylene, sodium salts.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic gases, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: Has not been reported.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 64-19-7: AF1225000 CAS# 7553-56-2: NN1575000 CAS# 7782-50-5: FO2100000 LD50/LC50:
CAS# 64-19-7: Draize test, rabbit, skin: 50 mg/24H Mild; Inhalation, mouse: LC50 = 5620 ppm/1H; Oral, rat: LD50 = 3310 mg/kg; Skin, rabbit: LD50 = 1060 uL/kg.
CAS# 7553-56-2: Oral, mouse: LD50 = 22 gm/kg; Oral, mouse: LD50 = 1000 mg/kg; Oral, rabbit: LD50 = 10 gm/kg; Oral, rat: LD50 = 14 gm/kg.
CAS# 7782-50-5: Inhalation, mouse: LC50 = 137 ppm/1H; Inhalation, mouse: LC50 = 368 mg/m3/30M; Inhalation, rat: LC50 = 293 ppm/1H.
Carcinogenicity:
Acetic acid - Not listed by ACGIH, IARC, or NTP.
Iodine - Not listed by ACGIH, IARC, or NTP.
Chlorine - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 64-19-7: AF1225000 CAS# 7553-56-2: NN1575000 CAS# 7782-50-5: FO2100000 LD50/LC50:
CAS# 64-19-7: Draize test, rabbit, skin: 50 mg/24H Mild; Inhalation, mouse: LC50 = 5620 ppm/1H; Oral, rat: LD50 = 3310 mg/kg; Skin, rabbit: LD50 = 1060 uL/kg.
CAS# 7553-56-2: Oral, mouse: LD50 = 22 gm/kg; Oral, mouse: LD50 = 1000 mg/kg; Oral, rabbit: LD50 = 10 gm/kg; Oral, rat: LD50 = 14 gm/kg.
CAS# 7782-50-5: Inhalation, mouse: LC50 = 137 ppm/1H; Inhalation, mouse: LC50 = 368 mg/m3/30M; Inhalation, rat: LC50 = 293 ppm/1H.
Carcinogenicity:
Acetic acid - Not listed by ACGIH, IARC, or NTP.
Iodine - Not listed by ACGIH, IARC, or NTP.
Chlorine - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Ecotoxicity:
Fish: Bluegill/Sunfish: LC50 = 75 mg/L; 96 Hr; CAS# 64-19-7: UnspecifiedFish: Goldfish: LC50 = 423 mg/L; 24 Hr; CAS# 64-19-7: UnspecifiedWater flea Daphnia: EC50 = 32-47 mg/L; 24-48 Hr; CAS# 64-19-7: UnspecifiedBacteria: Phytobacterium phosphoreum: EC50 = 8.86-11 mg/L; 5,15,25 min; CAS# 64-19-7: Microtox testFish: Fathead Minnow: LC50 = 88 mg/L; 96 Hr; CAS# 64-19-7: Static bioassay @ 18-22CFish: Bluegill/Sunfish: LC50 = 75 mg/L; 96 Hr; CAS# 64-19-7: UnspecifiedFish: Goldfish: LC50 = 423 mg/L; 24 Hr; CAS# 64-19-7: UnspecifiedWater flea Daphnia: EC50 = 32-47 mg/L; 24-48 Hr; CAS# 64-19-7: UnspecifiedBacteria: Phytobacterium phosphoreum: EC50 =
Fish: Bluegill/Sunfish: LC50 = 75 mg/L; 96 Hr; CAS# 64-19-7: UnspecifiedFish: Goldfish: LC50 = 423 mg/L; 24 Hr; CAS# 64-19-7: UnspecifiedWater flea Daphnia: EC50 = 32-47 mg/L; 24-48 Hr; CAS# 64-19-7: UnspecifiedBacteria: Phytobacterium phosphoreum: EC50 = 8.86-11 mg/L; 5,15,25 min; CAS# 64-19-7: Microtox testFish: Fathead Minnow: LC50 = 88 mg/L; 96 Hr; CAS# 64-19-7: Static bioassay @ 18-22CFish: Bluegill/Sunfish: LC50 = 75 mg/L; 96 Hr; CAS# 64-19-7: UnspecifiedFish: Goldfish: LC50 = 423 mg/L; 24 Hr; CAS# 64-19-7: UnspecifiedWater flea Daphnia: EC50 = 32-47 mg/L; 24-48 Hr; CAS# 64-19-7: UnspecifiedBacteria: Phytobacterium phosphoreum: EC50 =
Section 13 - DISPOSAL CONSIDERATIONS
Products which are considered hazardous for supply are classified as Special Waste and the disposal of such chemicals is covered by regulations which may vary according to location. Contact a specialist disposal company or the local waste regulator for advice. Empty containers must be decontaminated before returning for recycling.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: CORROSIVE LIQUID, FLAMMABLE, NOS(Acetic acid solut
ion)
Hazard Class: 8
UN Number: 2920
Packing Group: II
IMO
Shipping Name: CORROSIVE LIQUID, FLAMMABLE, NOS(Acetic acid solut
ion)
Hazard Class: 8
UN Number: 2920
Packing Group: II
RID/ADR
Shipping Name: CORROSIVE LIQUID, FLAMMABLE, NOS(Acetic acid solut
ion)
Hazard Class: 8
UN Number: 2920
Packing group: II
USA RQ: CAS# 64-19-7: 5000 lb final RQ; 2270 kg final RQ
USA RQ: CAS# 7782-50-5: 10 lb final RQ; 4.54 kg final RQ
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 10 Flammable.
R 35 Causes severe burns.
Safety Phrases:
S 23 Do not inhale gas/fumes/vapour/spray.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 64-19-7: 1
CAS# 7553-56-2: 1
CAS# 7782-50-5: 2
Canada
CAS# 64-19-7 is listed on Canadas DSL List.
CAS# 7553-56-2 is listed on Canadas DSL List.
CAS# 7782-50-5 is listed on Canadas DSL List.
CAS# 64-19-7 is listed on Canadas Ingredient Disclosure List.
CAS# 7553-56-2 is listed on Canadas Ingredient Disclosure List.
CAS# 7782-50-5 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 64-19-7 is listed on the TSCA inventory.
CAS# 7553-56-2 is listed on the TSCA inventory.
CAS# 7782-50-5 is listed on the TSCA inventory.
