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ميتابيسلفيت الصوديوم

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.
الأعضاء المستهدفة:Respiratory system, eyes, skin
الآثار الصحية المحتملة
عين:May cause severe eve irritation and possible injury.
الجلد:May cause skin irritation. May be harmful if absorbed through the skin. May cause an allergic reaction in certain individuals
ابتلاع: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)
استنشاق:Mav cause alleric resniratory reaction. Mav cause effects similar to those described for ingestion. Inhalation of dust may cause respiratory tract irritation.
المزمنة: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
معلومات عامة: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.
نقطة الفلاش:غير قابل للتطبيق
درجة حرارة الاشتعال الذاتي:غير قابل للتطبيق.
Explosion Limits, Lower:غير متوفر.
العلوي:غير متوفرة
NFPA Rating:(estimated) Health: 3; Flammability: 0: Instability: 0
Section 6-Accidental Release Measures

معلومات عامة: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
التعامل مع المواد: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.
التخزين: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
الضوابط الهندسية: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
حدود التعرض

OSHA Vacated PEls: Sodium metabisulfite: 5 ma/m3 TWA Sulfur dioxide: 2 ppm TWA: 5 mg/m3 TWA
معدات الحماية الشخصية
عيون: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.
الجلد:Wear appropriate protective gloves to prevent skin exposure.

ملابس:Wear appropriate protective clothing to prevent skin exposure.

كمامات: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
الحالة الفيزيائية:سوليد
مظهر:white to vellow
رائحة:sulfur dioxide odor
درجة الحموضة:acid in soln
ضغط البخار:غير متوفر.
كثافة بخار:غير متوفر.
معدل التبخر:غير متوفر.
اللزوجة:غير متوفر.
نقطة الغليان:غير متوفر.
نقطة التجمد / الانصهار:150 deg c
درجة حرارة التحلل:150 dea c
الذوبان:Soluble.
الثقل النوعي / الكثافة:1.4
الصيغة الجزيئية:Na2S205
الوزن الجزيئي الغرامي:190.11

Section 10 - Stability and Reactivity
الاستقرار الكيميائي:Stable under normal temperatures and pressures. Slowly oxidized to the sulfate on exposure to air and moisture
شروط يجب تجنبها:Dust generation, moisture, exposure to air, excess heat, Corrosive to aluminum in aqueous solution..
Incompatibilities with other Materials:Strong oxidizing agents, acids.
منتجات التحلل الخطرة:Oxides of sulfur, toxic fumes of sodium oxide .
Hazardous Polvmerization:Has not been reported.Section 11-Toxicological Information.

رقم 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;
السرطنة:
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

علم الأوبئة: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

التشوهات الخلقية:لم يتم العثور على معلومات
التأثيرات الإنجابية:See actual entry in RTECS for complete information
Mutagenicity:See actual entry in RTECS for complete information. Neurotoxicity: No information found
Other Studies:

Section 12 - Ecological Information

لا توجد معلومات متاحة
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:لا شيء مدرج
RCRA U-Series:None listed.
Section 14- Transport Information