[Mitch]

Corvettaholic wrote:
On an unrelated note... isn't iodine really BAD for you in sufficient quantity? Cause we use iodine tabs to purify our water sometimes.

FISHER SCIENTIFIC  CHEMICAL MF -- 11400,IODINE
=======================================================

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MSDS Safety Information

=======================================================
MSDS Date: 12/12/1997
MSDS Num: CKWTK
Product ID: 11400,IODINE
MFN: 01
Responsible Party
Cage: 1B464
Name: FISHER SCIENTIFIC CO.  CHEMICAL MFG DIV
Address: 1 REAGENT LANE
City: FAIR LAWN NJ 07410-2802
Info Phone Number: 201-796-7100
Emergency Phone Number: 201-796-7100
Resp. Party Other MSDS No.: 11400
Preparer's Name: NOT PROVIDED
Chemtrec IND/Phone: (800)424-9300
Review Ind: Y
Published: Y
=======================================================

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Contractor Summary

=======================================================
Cage: 1B464
Name: FISHER SCIENTIFIC CO.  CHEMICAL MFG DIV
Address: 1 REAGENT LANE
City: FAIRLAWN NJ 07410-2802
Phone: 201-796-7100
=======================================================

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Ingredients

=======================================================
Cas: 7553-56-2
RTECS #: NN1575000
Name: IODINE
Percent by Wt: 100.
Other REC Limits: 2 PPM  (MFR)
OSHA PEL: C1 MG/M3;C0.1 PPM
ACGIH TLV: NOT ESTABLISHED
ACGIH STEL: C1.0 MG/M3;C0.1 PPM
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Health Hazards Data

=======================================================
LD50 LC50 Mixture: LD50 (ORAL, RAT) 14,000 MG/KG
Carcinogenicity Inds - NTP: NO
IARC: NO
OSHA: NO
Effects of Exposure: EYE: CAUSES SEVERE IRRITATION AND BURNS. VAPOR/MIST MAY
  CAUSE IRRITATION, SEVERE BURNS. SKIN: HARMFUL IF ABSORBED THROUGH SKIN.
  CAUSES SKIN BURNS. MAY CAUSE SKIN SENSITIZATION, AN ALLERGIC REACTION. I
  NGESTION: MAY CAUSE GI IRRITATION AND BURNS WITH NAUSEA, VOMITING, DIARRHEA.
  MAY BE HARMFUL IF SWALLOWED. INHALATION: MAY CAUSE IRRITATION OF RESPIRATORY
  TRACT WITH BURNING PAIN IN NOSE, THROAT, COUGH ING, WHEEZING, SHORTNESS OF
  BREATH, PULMONARY EDEMA, EPIPHORIA (EXCESSIVE TEARING). CHRONIC: CAN LEAD TO
  IODISM CHARACTERIZED BY SALIVATION, NASAL DISCHARGE, SNEEZING, FEVER,
  BRONCHITIS, STOMATITIS, S KIN RASH. CAN AFFECT THYROID FUNCTION.
Explanation Of Carcinogenicity: NOT LISTED BY ACGIH, IARC, NIOSH, NTP, OR OSHA.
Signs And Symptions Of Overexposure: EYE: CAUSES SEVERE IRRITATION AND BURNS.
  VAPOR/MIST MAY CAUSE IRRITATION, SEVERE BURNS. SKIN: CAUSES SKIN BURNS. MAY
  CAUSE SKIN SENSITIZATION, AN ALLERGIC REACTION. INGESTION: MAY CAUSE GI
  IRRITATION  AND BURNS WITH NAUSEA, VOMITING, DIARRHEA. INHALATION: MAY CAUSE
  IRRITATION OF RESPIRATORY TRACT WITH BURNING PAIN IN NOSE, THROAT, COUGHING,
  WHEEZING, SHORTNESS OF BREATH, PULMONARY EDEMA, EPIPHORIA  (EXCESSIVE
  TEARING).
Medical Cond Aggravated By Exposure: NOT PROVIDED
First Aid: EYES: IMMEDIATELY FLUSH WITH PLENTY OF WATER FOR AT LEAST 15
  MINUTES., OCCASIONALLY LIFTING UPPER AND LOWER EYELIDS. GET MEDICAL AID
  IMMEDIATELY. SKIN: GET MEDICAL AID IMMEDIATELY. RINSE AREA WITH WAT ER FOR AT
  LEAST 15 MINUTES. REMOVE CONTAMINATED CLOTHING. INGESTION: DO NOT INDUCE
  VOMITING. IF VICTIM IS CONSCIOUS AND ALERT, GIVE 2-4 CUPFULS OF MILK OR
  WATER. NEVER GIVE ANYTHING BY MOUTH TO AN UNC ONSCIOUS PERSON. GET MEDICAL
  AID IMMEDIATELY. INHALATION: GET MEDICAL AID IMMEDIATELY. REMOVE FROM
  EXPOSURE TO FRESH AIR IMMEDIATELY. IF NOT BREATHING, GIVE ARTIFICIAL
  RESPIRATION. IF BREATHING  IS DI FFICULT, GIVE OXYGEN.
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Handling and Disposal

=======================================================
Spill Release Procedures: USE PROPER PERSONAL PROTECTIVE EQUIPMENT. SWEEP UP OR
  ABSORB MATERIAL, THEN PLACE INTO A SUITABLE CLEAN, DRY, CLOSED CONTAINER FOR
  DISPOSAL.
Neutralizing Agent: NOT PROVIDED
Waste Disposal Methods: DISPOSE OF IN A MANNER CONSISTENT WITH FEDERAL, STATE,
  AND LOCAL REGULATIONS.
Handling And Storage Precautions: KEEP CONTAINER TIGHTLY CLOSED. DO NOT STORE
  NEAR COMBUSTIBLE MATERIALS. KEEP AWAY FROM FOOD AND DRINKING WATER. KEEP AWAY
  FROM STRONG ACIDS. KEEP AWAY FROM METALS. KEEP AWAY FROM REDUCING AGENTS.
  AVOI D CONTACT WITH CLOTHING AND OTHER COMBUSTIBLE MATERIALS.
Other Precautions: DO NOT INGEST OR INHALE.  DO NOT GET ON SKIN OR IN EYES.
  WASH THOROUGHLY AFTER HANDLING. USE WITH ADEQUATE VENTILATION.
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Fire and Explosion Hazard Information

=======================================================
Extinguishing Media: USE WATER SPRAY TO COOL FIRE-EXPOSED CONTAINERS. SUBSTANCE
  IS NONCOMBUSTIBLE; USE AGENT MOST APPROPRIATE TO EXTINGUISH SURROUNDING FIRE.
Fire Fighting Procedures: AS IN ANY FIRE, WEAR A SELF-CONTAINED BREATHING
  APPARATUS IN PRESSURE-DEMAND, MSHA/NIOSH (APPROVED OR EQUIVALENT), AND FULL
  PROTECTIVE GEAR. MATERIAL WILL NOT BURN. OXIDIZER. GREATLY INCREASES THE BUR
  NING RATE OF COMBUSTIBLE MATERIALS.
Unusual Fire/Explosion Hazard: NOT PROVIDED
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Control Measures

=======================================================
Respiratory Protection: FOLLOW THE OSHA RESPIRATOR REGULATIONS FOUND IN 29 CFR
  1910.134 OR EUROPEAN STANDARD EN 149. ALWAYS USE A NIOSH OR EUROPEAN STANDARD
  EN 149 APPROVED RESPIRATOR WHEN NECESSARY.
Ventilation: VENTILATION IS NORMALLY REQUIRED WHEN HANDLING OR USING THIS
  PRODUCT TO KEEP EXPOSURE TO AIRBORNE CONTAMINANTS BELOW THE EXPOSURE LIMIT.
Protective Gloves: WEAR IMPERVIOUS GLOVES.
Eye Protection: WEAR CHEMICAL GOGGLES AND A FACE SHIELD.
Other Protective Equipment: WEAR APPROPRIATE PROTECTIVE CLOTHING TO PREVENT
  SKIN EXPOSURE.
Work Hygienic Practices: NOT PROVIDED
Supplemental Safety and Health: P/N: 11757. NOTE TO PHYSICIAN: TREAT
  SYMPTOMATICALLY. ABBREVIATION: N/A=NOT APPLICABLE OR NOT AVAILABLE.
  N/K=UNKNOWN. N/P=NOT PROVIDED. N/R=NOT RELEVANT. N/D=NOT DETERMINED. N/E=NOT
  ESTABLISHED. CNS=C ENTRAL NERVOUS SYSTEM. GI=GASTROINTESTINAL.
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Physical/Chemical Properties

=======================================================
HCC: C1
NRC/State LIC No: NOT RELEVANT
Boiling Point: =184.4C, 363.9F
Melt/Freeze Pt: =113.5C, 236.3F
Decomp Text: NOT AVAILABLE
Vapor Pres: 1 MM HG @38.7
Vapor Density: 9.0
Spec Gravity: 4.93
PH: NOT AVAILABLE
Evaporation Rate & Reference: NEGLIGIBLE
Solubility in Water: SOLUBLE IN ALCOHOL, MEOH,
Appearance and Odor: BLACK-VIOLET SOLID; IODINE-LIKE ODOR.
Percent Volatiles by Volume: NOT PROVIDED
Corrosion Rate: NOT PROVIDED
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Reactivity Data

=======================================================
Stability Indicator: YES
Stability Condition To Avoid: INCOMPATIBLE MATERIALS.
Materials To Avoid: POWDERED ALUMINUM, ACTIVE METALS. ACETYLENE, ACETALDEHYDE
  CAUSE EXPLOSIVE REACTIONS. IODINE REACTS WITH AMMONIUM HYDROXIDE TO FORM
  SHOCK SENSITIVE COMPOUNDS THAT ARE EXPLOSIVE WHEN DRY.
Hazardous Decomposition Products: HYDROGEN IODIDE, IODINE.
Hazardous Polymerization Indicator: NO
Conditions To Avoid Polymerization: NONE
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Toxicological Information

=======================================================
Toxicological Information: ORAL, MOUSE: LD50 = 22 GM/KG; ORAL, RABBIT: LD50 =
  10 GM/KG; ORAL, RAT: LD50 = 14 GM/KG.
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Ecological Information

=======================================================
Ecological: ECOTOXICITY: FISH, LC50: 28.5 MG/KG. ENVIRONMENTAL FATE: NOT
  AVAILABLE.
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MSDS Transport Information

=======================================================
Transport Information: US DOT SHIPPING NAME: CORROSIVE SOLID, N. O. S.
  (IODINE). HAZARD CLASS: 8. UN NUMBER: UN1759. PACKING GROUP: I I. IMO
  SHIPPING NAME: TOXIC SOLID, INORGANIC, NOS. HAZARD CLASS: 6.1. UN NUMBER:
  UN3288.  PACKING GROUP: I I I. IATA SHIPPING NAME: TOXIC SOLID, INORGANIC,
  NOS. HAZARD CLASS: 6.1. UN NUMBER: UN3288. PACKING GROUP: I I I.
=======================================================

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Regulatory Information

=======================================================
Sara Title III Information: SECTION 302 (RQ): NONE OF THE CHEMICALS IN THIS
  MATERIAL HAVE AN RQ.    SECTION 302 (TPQ): NONE OF THE CHEMICALS IN THIS
  PRODUCT HAVE A TPQ.   SARA CODES CAS # 7553-56-2: ACUTE, CHRONIC, FLAMMABLE.
   S ECTION 313: NO CHEMICALS ARE REPORTABLE UNDER SECTION 313.   CLEAN AIR
  ACT: THIS MATERIAL DOES NOT CONTAIN ANY HAZARDOUS AIR POLLUTANTS. THIS
  MATERIAL DOES NOT CONTAIN ANY CLASS 1 OZONE DEPLETORS. THI S MATERIAL DOES
  NOT CONTAIN ANY CLASS 2 OZONE DEPLETORS.
Federal Regulatory Information: TSCA: CAS# 7553-56-2 IS LISTED ON THE TSCA
  INVENTORY.   CLEAN WATER ACT:  NONE OF THE CHEMICALS IN THIS PRODUCT ARE
  LISTED AS HAZARDOUS SUBSTANCES UNDER THE CWA. NONE OF THE CHEMICALS IN THIS
  PRODUCT  ARE LISTED AS PRIORITY POLLUTANTS UNDER THE CWA. NONE OF THE
  CHEMICALS IN THIS PRODUCT ARE LISTED AS TOXIC POLLUTANTS UNDER THE CWA.
OSHA:  NONE OF THE CHEMICALS IN THIS PRODUCT ARE CONSIDERED HIGH LY HAZARDOUS
  BY OSHA.
State Regulatory Information: CAS# 7553-56-2 CAN BE FOUND ON THE FOLLOWING
  STATE RIGHT TO KNOW LISTS: CALIFORNIA, NEW JERSEY, FLORIDA, PENNSYLVANIA,
  MINNESOTA, MASSACHUSETTS.  CALIFORNIA NO SIGNIFICANT RISK LEVEL: NONE OF THE
  CHEM ICALS IN THIS PRODUCT ARE LISTED.
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Other Information

=======================================================
Other Information: DANGER! MAY CAUSE ALLERGIC SKIN REACTION. CORROSIVE. CAUSES
  EYE AND SKIN BURNS. MAY CAUSE SEVERE RESPIRATORY AND DIGESTIVE TRACT
  IRRITATION WITH POSSIBLE BURNS.  TARGET ORGANS: NONE.
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Transportation Information

=======================================================
Responsible Party Cage: 1B464
Trans ID NO: 155624
Product ID: 11400,IODINE
MSDS Prepared Date: 12/12/1997
Review Date: 12/19/2000
MFN: 1
Tech Entry NOS Shipping Nm: IODINE
Multiple KIT Number: 0
Unit Of Issue: CY
Type Of Container: CYLINDER
Additional Data: DOT, IMO, IATA PROPER SHIPPING NAMES, UN ID NUMBERS, HAZARD
  CLASSES, AND PACKING GROUPS PER MSDS.
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Detail DOT Information

=======================================================
DOT PSN Code: DWZ
Symbols: G
DOT Proper Shipping Name: CORROSIVE SOLIDS, N.O.S.
Hazard Class: 8
UN ID Num: UN1759
DOT Packaging Group: II
Label: CORROSIVE
Packaging Exception: 154
Non Bulk Pack: 212
Bulk Pack: 240
Max Qty Pass: 15 KG
Max Qty Cargo: 50 KG
Vessel Stow Req: A
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Detail IMO Information

=======================================================
IMO PSN Code: OTQ
IMO Proper Shipping Name: TOXIC SOLID, INORGANIC, N.O.S. o
IMDG Page Number: 6270-6
UN Number: 3288
UN Hazard Class: 6.1
IMO Packaging Group: I/II/III
Subsidiary Risk Label: -
EMS Number: 6.1-04
MED First Aid Guide NUM: T
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Detail IATA Information

=======================================================
IATA PSN Code: YJF
IATA UN ID Num: 3288
IATA Proper Shipping Name: TOXIC SOLID, INORGANIC, N.O.S. *
IATA UN Class: 6.1
IATA Label: TOXIC
UN Packing Group: III
Packing Note Passenger: 619
Max Quant Pass: 100KG
Max Quant Cargo: 200KG
Packaging Note Cargo: 619
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Detail AFI Information

=======================================================
AFI PSN Code: HMF
AFI Symbols: *
AFI Proper Shipping Name: CORROSIVE SOLID, N.O.S.
AFI Hazard Class: 8
AFI UN ID NUM: UN1759
AFI Packing Group: II
Special Provisions: P5
Back Pack Reference: A12.4
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HAZCOM Label

=======================================================
Product ID: 11400,IODINE
Cage: 1B464
Company Name: FISHER SCIENTIFIC CO.  CHEMICAL MFG DIV
Street: 1 REAGENT LANE
City: FAIRLAWN NJ
Zipcode: 07410-2802
Health Emergency Phone: 201-796-7100
Label Required IND: Y
Date Of Label Review: 12/20/2000
Status Code: A
MFG Label NO: NOT PROVIDED
Origination
Chronic Hazard IND: Y
Eye Protection IND: YES
Skin Protection IND: YES
Signal Word: DANGER
Respiratory Protection IND: NO
Health Hazard: Moderate
Contact Hazard: Severe
Fire Hazard: None
Reactivity Hazard: None
Hazard And Precautions: TARGET ORGANS: NONE. DANGER! MAY CAUSE ALLERGIC SKIN
  REACTION. CORROSIVE. CAUSES EYE AND SKIN BURNS. MAY CAUSE SEVERE RESPIRATORY
  AND DIGESTIVE TRACT IRRITATION WITH POSSIBLE BURNS. FIRST AID: EYES: I
  MMEDIATELY FLUSH WITH WATER FOR AT LEAST15 MINUTES., LIFTING UPPER AND LOWER
  EYELIDS. GET MEDICAL AID IMMEDIATELY. SKIN: GET MEDICAL AID IMMEDIATELY.
  RINSE AREA WITH WATER FOR 15 MINUTES. INGESTION: D O NOT INDUCE VOMITING. IF
  VICTIM IS CONSCIOUS, GIVE 2-4 CUPFULS OF MILK/WATER. GET MEDICAL AID
  IMMEDIATELY. INHALATION: GET MEDICAL AID. REMOVE TO FRESH AIR. IF NOT
  BREATHING, GIVE ARTIFICIAL RESPIRAT ION. IF BREATHING  IS DIFFICULT, GIVE
  OXYGEN.
=======================================================
Disclaimer (provided with this information by the compiling agencies): This
  information is formulated for use by elements of the Department of Defense.
  The United States of America in no manner whatsoever expressly or implied
  warrants, states, or intends said information to have any application, use or
  viability by or to any person or persons outside the Department of Defense
  nor any person or persons contracting with any instrumentality of the United
  States of America and disclaims all liability for such use. Any person
  utilizing this instruction who is not a military or civilian employee of the
  United States of America should seek competent professional advice to verify
  and assume responsibility for the suitability of this information to their
  particular situation regardless of similarity to a corresponding Department
  of Defense or other government situation.

[Corvettaholic]

According to that MSDS sheet, iodine is solid at room temperature? Since unstable stuff would encompass solids that turn into two stable gases.. iodine isn't naturally a gas. But I suppose with the heat of a boom it would be a gas really briefly, then become solid again.

[gregpawin]

One word: thermodynamics

[Corvettaholic]

Ah, good point. There will be plenty of heat at first, but its going to diffuse really quick, maybe too quick to see, but at some point the laws are followed. Love that word, thermodynamics. Always trips me up  

[jdurg]

Iodine is most definitely a solid at room temperature.  However, it easily sublimes into a beautiful violet colored vapor at normal atmospheric pressure.  If you take some Iodine crystals and just put them out in the open air, over time they will sublime into iodine vapor and your crystals will be no more.  All the halogens tend to easily form vapors if they aren't already gasses at room temperature.  (Bromine especially.  That's what makes it so difficult to contain.  The liquid will quickly form a vapor and fill up any container it's in, then proceed to eat through said container).  If you heat up solid iodine, you'll quickly see it turn into the gaseous form.  It's in this form that it's the most dangerous as it's easily absorbed into you lungs and mucus membranes.  With bromine you'll at least know right away that you've got some on you as it will quickly start burning.  With iodine, you may not realize that you had some on your skin for a good while until you see a big red spot form where the crystals had been lying.

[edited to stability thread]

[Corvettaholic]

Do all halogens behave this way? And all halogens are caustic? Pretend I had some iodine crystals, I should be able to store them in a glass jar (with a good lid), and if they turn into gas they probably won't eat through the sides? Or I could always overpressurize the jar and they definantly shouldn't sublime.

[Mitch]

In a closed system they won't sublime to an extent where you will have to worry about that..

[hmx9123]

Iodine won't eat the glass jar, but it might eat the lid.  Also, it will sublime through the lid's fitting to the glass, although it might not be that quick.  Unless you flame seal it in glass, I have yet to see a fitting that is tight enough to keep iodine in.  It sublimes through everything, including vacuum grease on a ground glass joint (surprisingly fast, too).  It leaves stains, but they sublime away, too.  In a closed system, any difference in temperature or concentration may promote the sublimation of the crystals around the inside of the flask/ampule/whatever.  Not a big deal if it's sealed.

[Corvettaholic]

I assume jdurg has some iodine, given his element collection. From reading the MSDS sheet, sounds like its bad for you, and given that it sublimes... not good to play with. So if I want some, pretty much get an ampoule and just keep it sealed for collection sake. Now doesn't lye contain a lot of iodine in it? What bonds to it to keep it nice and inside the jar?

[Scratch-]

Lye is sodium hydroxide, NaOH.

[Corvettaholic]

Oh, never mind then. What is iodine used for besides water purification tabs anyways? And speaking of those things, since iodine is bad for you, what kind of concentration is in those things and why do they work?

[Scratch-]

Iodine is used as a sterilizer for medical stuff. You can buy medical iodine in plastic bottles, its about 2% iodine and 3% iodine salts. It works because its so reactive that even in small amounts its still effective for what they use it for.

[jdurg]

When looking at MSDS sheets, remember one thing; they exaggerate for safety's sake.  If you've ever read the MSDS for water, you'd be kind of shocked at how dangerous it makes it sound.  Of all the halogens, Iodine is the least reactive/dangerous.  My ounce-and-a-half of Iodine is contained within a fairly small amber-glass bottle with a Teflon-cone screw top cap with Teflon tape wrapped around the threads.  The Iodine has been safely secured in there for about three months now without any odor or visible leakage coming from it.  (Unlike my bromine which has a mild bromine odor coming out of the bottle).  If you drop a crystal of Iodine on your skin and you promptly remove it and wash the area, there will be no damage.  It's only if you forget to remove it that it will begin to damage your flesh.  (Bromine, on the other hand, will immediately begin to eat away at your skin.  It's a really nasty substance and I'm thinking about taking what I have and heat sealing it into a very large ampoule to compensate for pressure changes).