Baser
Baser af forskellige kemiske sammensætninger, pH-værdier, renheder, reagenskvaliteter og mængder egnet til en lang række laboratorieapplikationer. Produkterne fås i fast og flydende form.
Baser opfattes normalt som den kemiske modsætning til syrer . De defineres almindeligvis som forbindelser, der danner vandige opløsninger, der smager bittert, har en høj pH (> 7), får lakmuspapir til at blive blåt, er glatte at røre ved og reagerer med syrer og danner vand og salte.
I laboratoriet bruges baser som reagenser eller katalysatorer i mange kemiske reaktioner, og nogle er gode ledere af elektricitet. I et industrimiljø bruges baser i mange applikationer, såsom fremstilling af sæbe, papir, blegepulver og syntetisk fiber rayon.
Kemisk kan baser klassificeres som:
- Arrhenius, stoffer, der producerer hydroxid (OH− ) ioner i vandige opløsninger og omfatter natriumhydroxid (lud eller kaustisk soda), kaliumhydroxid (eller kaustisk kaliumchlorid) og ammoniumhydroxid (eller aqua øammoniak) Br nsted-Lowry, stoffer som ammoniak (NH 3 ), der kan acceptere en proton eller hydrogenion
- Lewis, forbindelser såsom ammoniak, alkyl eller arylaminer og pyridiner og pyrimidiner, der er elektronpardonorer
BEMÆRK: En Lewis-base er også en Br ønsted-Lowry-base, men en Lewis-syre er ikke nødvendigvis også en Br ønsted-Lowry-syre.
Filtrerede søgeresultater
| MDL nummer | MFCD00003548 |
|---|---|
| Lineær formel | NaOH |
| Sundhedsfare 3 | GHS P Statement: Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. WARNING: The information provided on this web site was developed in compliance with European Union (EU) regulations and is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guide for safe handling and use. It is not to be considered as either a warranty or quality specification. |
| Sundhedsfare 2 | GHS H Statement: Causes skin irritation. Causes serious eye irritation. |
| Sundhedsfare 1 | Warning |
| Formel vægt | 39.99 |
| Emballage | Plastflaske |
| ChEBI | CHEBI:32145 |
| IUPAC navn | natriumhydroxid |
| PubChem CID | 14798 |
| Molekylvægt (g/mol) | 39.997 |
| Tæthed | 1.0100g/mL |
| Fieser | 01,1083; 05,616; 07,336; 08,460 |
| SMIL | [OH-].[Na+] |
| InChI nøgle | HEMHJVSKTPXQMS-UHFFFAOYSA-M |
| Kemisk navn eller materiale | Sodium hydroxide |
| Specifik vægtfylde | 1.01 |
| Opløselighedsinformation | Solubility in water: soluble. |
| RTECS nummer | WB4900000 |
| Merck Index | 15, 8761 |
| Koncentration | 0.1996 to 0.2004N |
| Fysisk form | Væske |
| Farve | Farveløs |
| EINECS nummer | 215-185-5 |
| CAS | 7732-18-5 |
| Synonym | sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic |
| TSCA | TSCA |
| Molekylær formel | HNaO |
Natriumhydroxidopløsning (50 % w/w/certificeret), Fisher Chemical™
CAS: 1310-73-2 Molekylær formel: HNaO Molekylvægt (g/mol): 39.997 MDL nummer: MFCD00003548 InChI nøgle: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC navn: natriumhydroxid SMIL: [OH-].[Na+]
| MDL nummer | MFCD00003548 |
|---|---|
| PubChem CID | 14798 |
| Molekylvægt (g/mol) | 39.997 |
| CAS | 1310-73-2 |
| ChEBI | CHEBI:32145 |
| Synonym | sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic |
| SMIL | [OH-].[Na+] |
| IUPAC navn | natriumhydroxid |
| InChI nøgle | HEMHJVSKTPXQMS-UHFFFAOYSA-M |
| Molekylær formel | HNaO |
Natriumhydroxid, ren, pellets, Thermo Scientific Chemicals
CAS: 1310-73-2 Molekylær formel: HNaO Molekylvægt (g/mol): 39.997 InChI nøgle: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC navn: natriumhydroxid SMIL: [OH-].[Na+]
| PubChem CID | 14798 |
|---|---|
| Molekylvægt (g/mol) | 39.997 |
| CAS | 1310-73-2 |
| ChEBI | CHEBI:32145 |
| Synonym | sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic |
| SMIL | [OH-].[Na+] |
| IUPAC navn | natriumhydroxid |
| InChI nøgle | HEMHJVSKTPXQMS-UHFFFAOYSA-M |
| Molekylær formel | HNaO |
Sodium hydroxide, 98.5%, for analysis, pellets
CAS: 1310-73-2 Molekylær formel: HNaO Molekylvægt (g/mol): 39.997 MDL nummer: MFCD00003548 InChI nøgle: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC navn: natriumhydroxid SMIL: [OH-].[Na+]
| MDL nummer | MFCD00003548 |
|---|---|
| PubChem CID | 14798 |
| Molekylvægt (g/mol) | 39.997 |
| CAS | 1310-73-2 |
| ChEBI | CHEBI:32145 |
| Synonym | sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic |
| SMIL | [OH-].[Na+] |
| IUPAC navn | natriumhydroxid |
| InChI nøgle | HEMHJVSKTPXQMS-UHFFFAOYSA-M |
| Molekylær formel | HNaO |
Ammoniak, ca. 7N opløsning i methanol, Thermo Scientific Chemicals
Ammoniak, H3N, CAS-nummer-7664-41-7, 67-56-1, am-fol, ammoniak, ammoniak, vandfri, ammoniak, vandfri, ammoniakgas, ammoniak, ammoniakgas, vandfri ammoniak, nitro-sil, hartshornssprit, 2,5L, Gul til 134BI, 1,6L, CHE34BI:1,06 7,5N, 0,7700 g/mL, 05,15, 14 grader C, 17,03, GHS-signalord: Fare
| MDL nummer | MFCD00011418 |
|---|---|
| Lineær formel | NH3 |
| Kemisk navn eller materiale | Ammonia |
| Specifik vægtfylde | 0.77 |
| Sundhedsfare 3 | GHS P Statement: IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. Wear protective gloves/protective clothing/eye protection/face protection. Call a POISON CENTER or doctor/physician if you feel unwell. IF ON SKIN: Gently wash with plenty of soap and water. IF SWALLOWED: rinse mouth. Do NOT induce vomiting. Wear eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. IF exposed: Call a POISON CENTER or doctor/physician. IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. Avoid release to the environment. Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Ground/Bond container and receiving equipment. WARNING: The information provided on this web site was developed in compliance with European Union (EU) regulations and is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guide for safe handling and use. It is not to be considered as either a warranty or quality specification. |
| Sundhedsfare 2 | GHS H Statement: Toxic if swallowed. Causes severe skin burns and eye damage. Toxic in contact with skin. Causes damage to organs. Fatal if inhaled. Highly flammable liquid and vapor. |
| Sundhedsfare 1 | GHS-signalord: Fare |
| Formel vægt | 17.03 |
| ChEBI | CHEBI:16134 |
| Merck Index | 15, 488 |
| Koncentration | 6.0 to 7.5N |
| Fysisk form | Væske |
| IUPAC navn | azane |
| Farve | Farveløs til gul |
| Navn note | ca. 7N Solution in Methanol |
| PubChem CID | 222 |
| Molekylvægt (g/mol) | 17.03 |
| Tæthed | 0.7700g/mL |
| Fieser | 05,15 |
| CAS | 67-56-1 |
| Synonym | ammonia,ammonia gas,spirit of hartshorn,nitro-sil,ammoniakgas,ammonia anhydrous,anhydrous ammonia,ammonia, anhydrous,ammoniak,am-fol |
| SMIL | N |
| Flammepunkt | 14°C |
| InChI nøgle | QGZKDVFQNNGYKY-UHFFFAOYSA-N |
| Molekylær formel | H3N |
Sodium hydroxide, 98%, extra pure, pellets
CAS: 1310-73-2 Molekylær formel: HNaO Molekylvægt (g/mol): 39.997 MDL nummer: MFCD00003548 InChI nøgle: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC navn: natriumhydroxid SMIL: [OH-].[Na+]
| MDL nummer | MFCD00003548 |
|---|---|
| PubChem CID | 14798 |
| Molekylvægt (g/mol) | 39.997 |
| CAS | 1310-73-2 |
| ChEBI | CHEBI:32145 |
| Synonym | sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic |
| SMIL | [OH-].[Na+] |
| IUPAC navn | natriumhydroxid |
| InChI nøgle | HEMHJVSKTPXQMS-UHFFFAOYSA-M |
| Molekylær formel | HNaO |
Ammoniak, 2M opløsning i methanol, AcroSeal™ , Thermo Scientific Chemicals
CAS: 7664-41-7 | H3N | 17.03 g/mol
| MDL nummer | MFCD00011418 |
|---|---|
| Lineær formel | NH3 |
| Sundhedsfare 3 | GHS P Statement Immediately call a POISON CENTER or doctor/physician. Wear protective gloves/protective clothing/eye protection/face protection. Do not breathe dust/fume/gas/mist/vapors/spray. Keep away from heat/sparks/open flames/hot surfaces. - No smoking. IF ON SKIN: Wash with plenty of soap and water. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
| Sundhedsfare 2 | GHS P Statement Toxic in contact with skin. Causes damage to organs. Toxic if swallowed. Causes serious eye damage. Toxic if inhaled. Causes skin irritation. Highly flammable liquid and vapor. |
| Sundhedsfare 1 | GHS-signalord: Fare |
| Formel vægt | 17.03 |
| Emballage | AcroSeal™ Glasflaske |
| ChEBI | CHEBI:16134 |
| IUPAC navn | azane |
| PubChem CID | 222 |
| Molekylvægt (g/mol) | 17.03 |
| Tæthed | 0.7870g/mL |
| Fieser | 05,15 |
| SMIL | N |
| Flammepunkt | 6°C |
| InChI nøgle | QGZKDVFQNNGYKY-UHFFFAOYSA-N |
| Kemisk navn eller materiale | Ammonia |
| Specifik vægtfylde | 0.787 |
| Opløselighedsinformation | Solubility in water: soluble. Other solubilities: soluble in most organic solvents |
| Merck Index | 15, 488 |
| Koncentration | 1.90 to 2.20M |
| Fysisk form | Væske |
| Farve | Farveløs |
| CAS | 67-56-1 |
| Synonym | ammonia,ammonia gas,spirit of hartshorn,nitro-sil,ammoniakgas,ammonia anhydrous,anhydrous ammonia,ammonia, anhydrous,ammoniak,am-fol |
| Molekylær formel | H3N |
Sodium hydroxide, for analysis, micropearls
CAS: 1310-73-2 Molekylær formel: HNaO Molekylvægt (g/mol): 39.997 MDL nummer: MFCD00003548 InChI nøgle: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC navn: natriumhydroxid SMIL: [OH-].[Na+]
| MDL nummer | MFCD00003548 |
|---|---|
| PubChem CID | 14798 |
| Molekylvægt (g/mol) | 39.997 |
| CAS | 1310-73-2 |
| ChEBI | CHEBI:32145 |
| Synonym | sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic |
| SMIL | [OH-].[Na+] |
| IUPAC navn | natriumhydroxid |
| InChI nøgle | HEMHJVSKTPXQMS-UHFFFAOYSA-M |
| Molekylær formel | HNaO |