Τι είναι το MSDS του Μεταδιθειώδους Νατρίου

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Μεταδιθειώδες νάτριο

Section 1- Chemical Product and Company Identification

MSDS Name: Sodium metabisulfite
Synonyms: Sodium pyrosulfite; Disodium disulfite; Pyrosulfurous acid, disodium salt; Disodium metabisulfite; Disodium pyrosulfite.
Company Identification: Roneda Chemical Co., Ltd
For information, call: +86 731-28813327
Emergency Number: +86 13617333142

Section 2-Composition. Information on Ingredients

Section 3- Hazards Identification
EMERGENCY OVERVTEW
Appearance: white to yellow solid.
Danner!May cause alleraic respiratory and skin reaction. May cause severe eve irritation and possible iniury. May he harmful if swallowed. May cause skin and respiratory tract irritation. Contact with acids liherates toxic gas, sulfur dioxide. Slowly axidized to. the sulfate on exposure to air and moisture. Corrosive to aluminum in anueous solution.
Target Organs:Respiratory system, eyes, skin
Πιθανές επιπτώσεις στην υγεία
Μάτι:May cause severe eve irritation and possible injury.
Δέρμα:May cause skin irritation. May be harmful if absorbed through the skin. May cause an allergic reaction in certain individuals
Εγχυση εις τον στόμαχο:May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed. Sulfite compounds may cause a severe allergic reaction in sensitive individuals and some asthmatics. Sodium metabisulfite used as a preservative in vineqar provoked severe asthma in a 67-vear-old woman who ate salad with vinegar-based dressing. (ACGIH Documentation of the TLVs)
Εισπνοή:Mav cause alleric resniratory reaction. Mav cause effects similar to those described for ingestion. Inhalation of dust may cause respiratory tract irritation.
Χρόνια:Prolonged or repeated skin contact may cause dermatitis, Repeated or prolonged exposure may cause alleraic reactions in sensitive individuals.

Section 4- First Aid Measures
Eves: In case of contact, immediately flush eyes with plenty of water for a t least 15 minutes. Get medical aid immediately.
Skin: In case of contact, flush skin with plenty of water, Remove contaminated clothing and shoes, Get medical aid if irritatior develops and persists. Wash clothing before reuse.
Ingestion: If swallowed, do not induce vomiting unless directed to do so hy medical nersonnel, Never aive anvthina by mouth to an unconscious person, Get medical aid.
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: Treat symptomatically and supportively.
Section 5- Fire Fighting Measures
Γενικές Πληροφορίες:As in any fire, 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, Substance is noncombustible.
Extinquishing Media:Use water fog, dry chemical, carbon dioxide, or reqular foam.
Σημείο ανάφλεξης:δεν ισχύει
Θερμοκρασία αυτανάφλεξης:Δεν εφαρμόζεται.
Explosion Limits, Lower:Μη διαθέσιμος.
Άνω:Δεν υπάρχουν διαθέσιμα στοιχεία
NFPA Rating:(estimated) Health: 3; Flammability: 0: Instability: 0
Section 6-Accidental Release Measures

Γενικές Πληροφορίες:Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Eauipment section. Avoid generating dusty conditions. Providę ventilation.
Section 7- Handling and Storage
Χειρισμός, ή Αντιμετώπιση:Wash thorouahly after handlina. Remave contaminated clothina and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation, Keep container tightly closed. Avoid breathing dust, Do not get in eves, Ayoid contact with skin and clothing.
Αποθήκευση:Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from strong acids. Do not store in aluminum containers. Store protected from moisture, Keep away from oxidizing agents.
Section 8-Fxnosure Controls. Personal Protection
Τεχνικοί Έλεγχοι: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
Όρια έκθεσης

OSHA Vacated PEls: Sodium metabisulfite: 5 ma/m3 TWA Sulfur dioxide: 2 ppm TWA: 5 mg/m3 TWA
Τα μέσα ατομικής προστασίας
μάτια:Wear appropriate protective eyeglasses or chemical safety gogales as described by OSHA's eve and face protection renulations in 29 CER 1910.133 or Furonean Standard FN166.
Δέρμα:Wear appropriate protective gloves to prevent skin exposure.

Είδη ένδυσης:Wear appropriate protective clothing to prevent skin exposure.

Αναπνευστήρες:Follow the OSHA respirator reaulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or Furonean Standard FN 149 anproved resnirator if exnosure limits are exceeded or if irritation or other symptoms. are experienced.
Section 9- Physical and Chemical Properties
Φυσική κατάσταση:Στερεά
Εμφάνιση:white to vellow
Οσμή:sulfur dioxide odor
pH:acid in soln
Πίεση ατμού:Μη διαθέσιμος.
Πυκνότητα ατμών:Μη διαθέσιμος.
Ρυθμός εξάτμισης:Μη διαθέσιμος.
ιξώδες:Μη διαθέσιμος.
Σημείο βρασμού:Μη διαθέσιμος.
Σημείο Πήξης/Τήξης:150 βαθμοί γ
Θερμοκρασία αποσύνθεσης:150 dea c
Διαλυτότητα:Soluble.
Ειδικό Βάρος/Πυκνότητα:1.4
Μοριακός τύπος:Na2S205
Μοριακό βάρος:190.11

Section 10 - Stability and Reactivity
Χημική σταθερότητα:Stable under normal temperatures and pressures. Slowly oxidized to the sulfate on exposure to air and moisture
Συνθήκες προς αποφυγή:Dust generation, moisture, exposure to air, excess heat, Corrosive to aluminum in aqueous solution..
Incompatibilities with other Materials:Strong oxidizing agents, acids.
Επικίνδυνα προϊόντα αποσύνθεσης:Oxides of sulfur, toxic fumes of sodium oxide .
Hazardous Polvmerization:Has not been reported.Section 11-Toxicological Information.

RTECS#:
CAS#7681-57-4: UX8225000
CAS#7446-09-5: WS4550000
LD50/LC50:C
AS# 7681-57-4:
Dermal, guinea pig: LD50 = >1gm/kg;
Draize test, rabbit, eye: 100 mg/24H Mild;
Draize test, rabbit, skin: 500 mg.
Oral, rat: LD50 = 1131 mg/kg
Skin, rat: LD50 =>2 gm/kg;

CAS#7446-09-5
Draize test, rabbit,eye: 6 ppm/32D Mild;
Inhalation, mouse: LC50 = 3000 ppm/30M;
Inhalation, rat: LC50 = 2520 ppm/1H;
Inhalation, rat: LC50 = 2168 mg/m3;
Καρκινογένεση:
CAS# 7681-57-4: Not listed by ACGIH, IARC, NTP, or CA Prop 65
CAS# 7446-09-5: Not listed by ACGIH, IARC, NTP, or CA Prop 65

Επιδημιολογία:Two cases of occupational asthma in laundry workers exposed to sodium metabisulfite were reported, Sodium. metabisulfite may be considered to be the anhydride of sodium bisulfite and is the chief constituent of commercial dry sodium bisulfite

Τερατογένεση:Δεν βρέθηκαν πληροφορίες
Αναπαραγωγικές Επιδράσεις:See actual entry in RTECS for complete information
Μεταλλαξιογένεση:See actual entry in RTECS for complete information. Neurotoxicity: No information found
Other Studies:

Section 12 - Ecological Information

Δεν υπάρχουν διαθέσιμες πληροφορίες
Section 13 - Disposal Considerations

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA quidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series:Δεν αναφέρεται κανένα
RCRA U-Series:None listed.
Section 14- Transport Information