Newsgroup: it.scienza.chimica
Titolo: ma l' ITX del latte nestlè......

...è tossico oppure no ?
grazie
-- 
Cordiali Saluti

L'ITX è una miscela di isomeri dell'isopropiltioxantone in particolare il 
2-isopropiltioxantone e il 4-isopropiltioxantone.
A parte gli studi sulla tossicità della sostanza che si stanno svolgendo in 
questi giorni si può dire che le informazioni a disposizione sull'ITX siano 
veramente scarse. Riporto la scheda MSDS dell'ITX venduto dalla ACETO CORP:
INIZIO SCHEDA MSDS
ACETO CORP -- SPEEDCURE ITX -- 6850-00N057659
=======================================================
MSDS Safety Information
=======================================================
FSC: 6850
MSDS Date: 06/09/1988
MSDS Num: BWZZS
LIIN: 00N057659
Tech Review: 03/17/1995
Product ID: SPEEDCURE ITX
Responsible Party
Cage: 3K700
Name: ACETO CORP
Address: ONE HOLLOW LN
City: LAKE SUCCESS NY 11042 US
Info Phone Number: 
516-627-6000
Emergency Phone Number: 
800-424-9300
 (CHEMTREC)
Review Ind: N
=======================================================
Contractor Summary
=======================================================
Cage: 3K700
Name: ACETO CORP
Address: 126-02 NORTHERN BLVD
City: CORONA NY 11368-1523 US
Phone: 
516-627-6000
=======================================================
Ingredients
=======================================================
Cas: 5495-84-1
Name: 2-ISOPROPYLTHIOXANTHONE
% by Wt: 80-85
OSHA PEL: N/K (FP N)
ACGIH TLV: N/K (FP N)
-----------------------------
Cas: 83846-86-0
Name: 4-ISOPROPYLTHIOXANTHONE
% by Wt: 15-20
OSHA PEL: N/K (FP N)
ACGIH TLV: N/K (FP N)
=======================================================
Health Hazards Data
=======================================================
LD50 LC50 Mixture: LD50: >5000 MG/KG (ORAL RAT).
Route Of Entry Inds - Inhalation: YES
Skin: YES
Ingestion: YES
Carcinogenicity Inds - NTP: NO
IARC: NO
OSHA: NO
Effects of Exposure: DRY POWDER CAN BE IRRITANT TO EYES, SKIN AND
  RESPIRATORY TRACT.
Explanation Of Carcinogenicity: NOT RELEVANT.
Signs And Symptions Of Overexposure: SEE HEALTH HAZARDS.
Medical Cond Aggravated By Exposure: NONE SPECIFIED BY MANUFACTURER.
First Aid: INHAL: REMOVE TO FRESH AIR AND GET MEDICAL ATTENTION. EYES:
  FLUSH WITH WATER FOR AT LEAST 15 MINUTES. GET MEDICAL ATTENTION. SKIN:
  REMOVE CONTAMINATED CLOTHING. WASH IMMEDIATELY WITH SOAP AND WATER. G ET
  MEDICAL ATTENTION IF SYMPTOMS PERSIST. INGEST: DO NOT INDUCE VOMITING.
  GIVE ONE CUP OF WATER TO DRINK. GET MEDICAL ATTENTION.
=======================================================
Handling and Disposal
=======================================================
Spill Release Procedures: SWEEP UP AND PLACE IN CONTAINERS FOR DISPOSAL.
  WASH DOWN AREA WITH LARGE VOLUMES OF WATER.
Neutralizing Agent: NONE SPECIFIED BY MANUFACTURER.
Waste Disposal Methods: CONTROLLED INCINERATION OR LANDFILL IN ACCORDANCE
  W/LOCAL, STATE & FEDERAL REGULATIONS (FP N).
Handling And Storage Precautions: STORE IN COOL DRY PLACE AWAY FROM LIGHT.
  AVOID INHALATION AND SKIN CONTACT. KEEP AWAY FROM OPEN FLAMES AND
  SPARKS.
Other Precautions: NONE SPECIFIED BY MANUFACTURER.
=======================================================
Fire and Explosion Hazard Information
=======================================================
Flash Point Method: CC
Flash Point Text: 424F,218C
Extinguishing Media: FOAM, DRY POWDER, CARBON DIOXIDE OR WATER SPRAY.
Fire Fighting Procedures: WEAR NIOSH/MSHA APPROVED SCBA & FULL PROTECTIVE
  EQUIPMENT (FP N).
Unusual Fire/Explosion Hazard: WHEN HEATED TO DECOMPOSITION, TOXIC FUMES
  CONTAINING SULFUR COMPOUNDS ARE EMITTED.
=======================================================
Control Measures
=======================================================
Respiratory Protection: USE NIOSH/MSHA APPROVED DUST MASK APPROPRIATE FOR
  EXPOSURE OF CONCERN (FP N).
Ventilation: MECHANICAL GENERAL VENTILATION RECOMMENDED.
Protective Gloves: PVC GLOVES.
Eye Protection: ANSI APPRVD CHEM WORKERS GOGGS (FP N).
Other Protective Equipment: PVC APRON, BOOTS, EYEWASH AND SHOWER MEETING
  ANSI DESIGN CRITERIA (FP N).
Work Hygienic Practices: NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health: NONE SPECIFIED BY MANUFACTURER.
=======================================================
Physical/Chemical Properties
=======================================================
M.P/F.P Text: >151F,>66C
Solubility in Water: INSOLUBLE
Appearance and Odor: DULL YELLOW POWDER, CHARACTERISTIC ODOR
=======================================================
Reactivity Data
=======================================================
Stability Indicator: YES
Stability Condition To Avoid: EXPOSURE TO LIGHT, HIGH TEMPERATURES.
Materials To Avoid: NONE.
Hazardous Decomposition Products: OXIDES OF SULFUR.
Hazardous Polymerization Indicator: NO
Conditions To Avoid Polymerization: NOT RELEVANT.
=======================================================
Toxicological Information
=======================================================
=======================================================
Ecological Information
=======================================================
=======================================================
MSDS Transport Information
=======================================================
=======================================================
Regulatory Information
=======================================================
=======================================================
Other Information
=======================================================
=======================================================
HAZCOM Label
=======================================================
Product ID: SPEEDCURE ITX
Cage: 3K700
Company Name: ACETO CORP
Street: 126-02 NORTHERN BLVD
City: CORONA NY
Zipcode: 11368-1523 US
Health Emergency Phone: 
800-424-9300
 (CHEMTREC)
Date Of Label Review: 03/17/1995
Label Date: 03/17/1995
Chronic Hazard IND: N
Eye Protection IND: YES
Skin Protection IND: YES
Signal Word: CAUTION
Respiratory Protection IND: YES
Health Hazard: Slight
Contact Hazard: Slight
Fire Hazard: Slight
Reactivity Hazard: None
Hazard And Precautions: ACUTE: DRY POWDER CAN BE IRRITANT TO EYES, SKIN
  AND RESPIRATORY TRACT. CHRONIC: NONE SPECIFIED BY MANUFACTURER.
=======================================================
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.
FINE SCHEDA MSDS
Inoltre ho trovato un abstract del "Pesticide & Toxic Chemical News" che 
parla di un'irritazione cutanea provocata dall'ITX e riportata da dei 
lavoratori della First Chemical:
INIZIO ABSTRACT
Firstcure ITX is a mixture of 80% 2-isopropylthioxanthone (CAS No. 
5495-84-1) and 20% 4-isopropylthioxanthone (CAS No. 83846-86-0). The 
substance is processed by the firm Advanced Chemicals. Six workers had 
reddening of the skin on the head and neck after working with the substance 
and then being exposed to sunlight.
The reddening appeared immediately after sunlight exposure and persisted up 
to one day, with no other subsequent systems, according to the document. Two 
workers at First Chemical also had similar symptoms after similar exposures. 
None required medical attention.
In standard rabbit irritation tests, the product was found nonirritating to 
the eyes and skin. First Chemical reports technical problems prevented a 
phototoxicity study in guinea pigs in concentrations greater than .5%, at 
which concentration no phototoxicity was observed. A mild sensitization 
reactions was found in guinea pigs tested by the standard Buehler method, 
First Chemical reports.
As a result of the incidence, First Chemical revised the products Material 
Safety Data Sheet, recommending protective equipment, including PVC or 
neoprene gloves, goggles, chemical resistant clothing, and boots. The MSDS 
also indicates inhalation of the substance in dry powder form may irritate 
the respiratory tract. First Chemical says it is in the process of notifying 
employees and customers of the new information.
Pesticide & Toxic Chemical News, Volume 27, Number 51, October 14, 1999 
Copyright © CRC Press LLC 1999
FINE ABSTRACT
Sembra di capire che l'ITX non sia pericoloso, al massimo sensibilizzerà un 
pò la cute. Comunque c'è da dire che un conto è un uomo adulto e un conto è 
un neonato. Quindi secondo me il ritiro è stata una cosa giusta.
Patrick
C'è un documento
"Gabriele" <a...@vert.oi> ha scritto nel messaggio 
news:dm4krs$3lh$1...@nnrp-beta.newsland.it...
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