查看所有供应商和价格请点击：
1.主要用于造纸工业，其次用作生产快速显影液硫代硫酸铵的原料，用于有机合成作还原剂、磺化剂。日用化学品卷发液的生产原料。
2.亚硫酸铵在亚硫酸盐镀金中用作络合剂，与氨一起和金离子生成亚硫酸金铵双配合物，从而提高阴极极化，改善镀液的分散能力和覆盖能力。
| 中文名 | 亚硫酸铵 |
|---|---|
| 英文名 | Ammonium sulfite monohydrate |
| 中文别名 | 亚硫酸铵(一水) |
| 英文别名 |
MFCD00150959
EINECS 233-484-9 Ammonium sulfite hydrate (2:1:1) ammonium sulfite |
| 密度 | 1.41 g/mL at 25ºC(lit.) |
|---|---|
| 熔点 | 60-70ºC |
| 分子式 | H10N2O4S |
| 分子量 | 134.155 |
| 精确质量 | 134.036133 |
| PSA | 92.45000 |
| LogP | 1.13030 |
| 外观性状 | Crystalline | White |
| 折射率 | 1.515 |
| 储存条件 | 贮存在阴凉、干燥的库房中。因本品易氧化、受潮，故贮存时间不宜太长。 |
| 稳定性 | 1.溶于水（0℃时32.4g/100ml水；100℃时60.4g/100ml水），其水溶液呈碱性。微溶于醇。不溶于丙酮和二硫化碳。在空气中易氧化。在60～70℃时分解。易溶于水。当在空气中加热时渐渐失水并被氧化为(NH4)2SO4。 |
| 水溶解性 | Soluble in water. Insoluble in acetone and alcohol. |
| 分子结构 | 1、摩尔折射率：无可用的 2、摩尔体积（cm3/mol）：无可用的 3、等张比容（90.2K）：无可用的 4、表面张力（dyne/cm）：无可用的 5、介电常数：无可用的 6、极化率（10-24cm3）：无可用的 7、单一同位素质量：134.036127 Da 8、标称质量：134 Da 9、平均质量：134.1554 Da |
| 计算化学 | 1、 疏水参数计算参考值（XlogP）： 2、 氢键供体数量：0 3、 氢键受体数量：6 4、 可旋转化学键数量：0 5、 互变异构体数量： 6、 拓扑分子极性表面积（TPSA）：114 7、 重原子数量：9 8、 表面电荷：-2 9、 复杂度：36.5 10、 同位素原子数量：0 11、 确定原子立构中心数量：0 12、 不确定原子立构中心数量：0 13、 确定化学键立构中心数量：0 14、 不确定化学键立构中心数量：0 15、 共价键单元数量：3 |
| 更多 | 1. 性状：无色单斜晶系结晶。 2. 密度（g/mLat 25°C）：1.41 3. 相对蒸汽密度（g/mL,空气=1）：未确定 4. 熔点（ºC）：60-70 5. 沸点（ºC,常压）：未确定 6. 沸点（ºC,0.1mmHg）：未确定 7. 折射率（n20/D）：1.515 8. 闪点（ºC）：未确定 9. 比旋光度（º）：未确定 10. 自燃点或引燃温度（ºC）：未确定 11. 蒸气压（mmHg,37ºC）：未确定 12. 饱和蒸气压（kPa,114.4 ºC）：未确定 13. 燃烧热（KJ/mol）：未确定 14. 临界温度（ºC）：未确定 15. 临界压力（MPa）：未确定 16. 油水（辛醇/水）分配系数的对数值：未确定 17. 爆炸上限（%,V/V）：未确定 18. 爆炸下限（%,V/V）：未确定 19. 溶解性：溶于水，微溶于醇,不溶于丙酮和二硫化碳。 |
|
SECTION 1: Identification of the substance/mixture and of the company/undertaking Product identifiers Product name: Ammonium sulfite monohydrate REACH No.: A registration number is not available for this substance as the substance or its uses are exempted from registration, the annual tonnage does not require a registration or the registration is envisaged for a later registration deadline.
CAS-No.: 7783-11-1 Relevant identified uses of the substance or mixture and uses advised against Identified uses: Laboratory chemicals, Manufacture of substances SECTION 2: Hazards identification Classification of the substance or mixture Classification according to Regulation (EC) No 1272/2008 Skin irritation (Category 2), H315 Eye irritation (Category 2), H319 Specific target organ toxicity - single exposure (Category 3), H335 For the full text of the H-Statements mentioned in this Section, see Section 16. Classification according to EU Directives 67/548/EEC or 1999/45/EC Xi IrritantR31, R36/37/38 For the full text of the R-phrases mentioned in this Section, see Section 16. Label elements Labelling according Regulation (EC) No 1272/2008 Pictogram Signal wordWarning Hazard statement(s) H315Causes skin irritation. H319Causes serious eye irritation. H335May cause respiratory irritation. Precautionary statement(s) P261Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray. P305 + P351 + P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Supplemental Hazard information (EU) EUH031Contact with acids liberates toxic gas. Safety data sheet available on request. Other hazards - none SECTION 3: Composition/information on ingredients Substances Formula: H8N2O3S · H2O Molecular Weight: 134,16 g/mol CAS-No.: 7783-11-1 EC-No.: 233-484-9 Hazardous ingredients according to Regulation (EC) No 1272/2008 ComponentClassificationConcentration Ammonium sulphite Skin Irrit. 2; Eye Irrit. 2; STOT- SE 3; H315, H319, H335, EUH031 Hazardous ingredients according to Directive 1999/45/EC ComponentClassificationConcentration Ammonium sulphite Xi, R31 - R36/37/38- For the full text of the H-Statements and R-Phrases mentioned in this Section, see Section 16 SECTION 4: First aid measures Description of first aid measures General advice Consult a physician. Show this safety data sheet to the doctor in attendance. If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact Wash off with soap and plenty of water. Consult a physician. In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. If swallowed Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician. Most important symptoms and effects, both acute and delayed The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in section 11 Indication of any immediate medical attention and special treatment needed no data available SECTION 5: Firefighting measures Extinguishing media Suitable extinguishing media Dry powder Special hazards arising from the substance or mixture nitrogen oxides (NOx), Sulphur oxides Advice for firefighters Wear self contained breathing apparatus for fire fighting if necessary. Further information no data available SECTION 6: Accidental release measures Personal precautions, protective equipment and emergency procedures Wear respiratory protection. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8. Environmental precautions Do not let product enter drains. Methods and materials for containment and cleaning up Pick up and arrange disposal without creating dust. Sweep up and shovel. Do not flush with water. Keep in suitable, closed containers for disposal. Reference to other sections For disposal see section 13. SECTION 7: Handling and storage Precautions for safe handling Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2. Conditions for safe storage, including any incompatibilities Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Never allow product to get in contact with water during storage. Do not store near acids. Handle and store under inert gas. Air sensitive. Specific end use(s) A part from the uses mentioned in section 1.2 no other specific uses are stipulated SECTION 8: Exposure controls/personal protection Control parameters Components with workplace control parameters Exposure controls Appropriate engineering controls Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. Personal protective equipment Eye/face protection Safety glasses with side-shields conforming to EN166 Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Full contact Material: Nitrile rubber Minimum layer thickness: 0,11 mm Break through time: 480 min Material tested:Dermatril® (KCL 740 / Z677272, Size M) Splash contact Material: Nitrile rubber Minimum layer thickness: 0,11 mm Break through time: 480 min Material tested:Dermatril® (KCL 740 / Z677272, Size M) data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, test method: EN374 If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the CE approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario. Body Protection impervious clothing, The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Respiratory protection Where risk assessment shows air-purifying respirators are appropriate use a full-face particle respirator type N100 (US) or type P3 (EN 143) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Control of environmental exposure Do not let product enter drains. SECTION 9: Physical and chemical properties Information on basic physical and chemical properties a) AppearanceForm: solid b) Odourno data available c) Odour Thresholdno data available d) pHno data available e) Melting point/freezingno data available point f) Initial boiling point and no data available boiling range g) Flash pointnot applicable h) Evapouration rateno data available i) Flammability (solid, gas) no data available j) Upper/lowerno data available flammability or explosive limits k) Vapour pressureno data available l) Vapour densityno data available m) Relative density1,41 g/cm3 at 25 °C n) Water solubilityno data available o) Partition coefficient: n- no data available octanol/water p) Auto-ignitionno data available temperature q) Decompositionno data available temperature r) Viscosityno data available s) Explosive propertiesno data available t) Oxidizing propertiesno data available Other safety information no data available SECTION 10: Stability and reactivity Reactivity no data available Chemical stability Stable under recommended storage conditions. Possibility of hazardous reactions no data available Conditions to avoid Air Incompatible materials Strong oxidizing agents, Do not store near acids. Hazardous decomposition products Other decomposition products - no data available In the event of fire: see section 5 SECTION 11: Toxicological information Information on toxicological effects Acute toxicity no data available Skin corrosion/irritation no data available Serious eye damage/eye irritation no data available Respiratory or skin sensitisation no data available Germ cell mutagenicity no data available Carcinogenicity IARC:No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC. Reproductive toxicity no data available Specific target organ toxicity - single exposure Inhalation - May cause respiratory irritation. Specific target organ toxicity - repeated exposure no data available Aspiration hazard no data available Additional Information RTECS: Not available Gastrointestinal tract, Diarrhoea, Central nervous system depression, To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated. SECTION 12: Ecological information Toxicity no data available Persistence and degradability no data available Bioaccumulative potential no data available Mobility in soil no data available Results of PBT and vPvB assessment PBT/vPvB assessment not available as chemical safety assessment not required/not conducted Other adverse effects no data available SECTION 13: Disposal considerations Waste treatment methods Product Offer surplus and non-recyclable solutions to a licensed disposal company. Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. Contaminated packaging Dispose of as unused product. SECTION 14: Transport information UN number ADR/RID: -IMDG: -IATA: - UN proper shipping name ADR/RID: Not dangerous goods IMDG: Not dangerous goods IATA:Not dangerous goods Transport hazard class(es) ADR/RID: -IMDG: -IATA: - Packaging group ADR/RID: -IMDG: -IATA: - Environmental hazards ADR/RID: noIMDG Marine pollutant: noIATA: no Special precautions for user no data available SECTION 15 - REGULATORY INFORMATION N/A SECTION 16 - ADDITIONAL INFORMATION N/A |
| 符号 |
GHS07 |
|---|---|
| 信号词 | Warning |
| 危害声明 | H315-H319-H335 |
| 补充危害声明 | Contact with acids liberates toxic gas. |
| 警示性声明 | P261-P305 + P351 + P338 |
| 危害码 (欧洲) | Xi |
| 风险声明 (欧洲) | R31 |
| 安全声明 (欧洲) | S26-S36 |
| 危险品运输编码 | UN3077 9/PG 3 |
| WGK德国 | 3 |
2. 氨水法 将氨水配制成一定比重和碱度的溶液，循环吸收制硫酸尾气或焚硫烟气中二氧化硫，制得亚硫酸氢铵溶液，当吸收液相对密度达到1.30～1.32时送人中和器，再加入氨水中和反应至终点，经离心分离、干燥，制得亚硫酸铵成品
3.将相对密度为0.895,浓度约为32%的氨水置于长颈烧瓶中，将烧瓶用装有冰盐混合物的冷浴冷却。用导管向氨水中通二氧化硫气体，但导气管不要浸入到氨水中。当形成的盐的沉淀使溶液变为糊状物时，停止通入二氧化硫气体。在保持氨过量的情况下，亚硫酸铵的溶解度很小。抽干后将固体盐放入以氢氧化钾为干燥剂的干燥器中进行短时间的干燥即可。