06203

Sodium hydroxide

puriss., meets analytical specification of Ph. Eur., BP, NF, E524, 98-100.5%, pellets

• Synonym(s): ‘Caustic soda’
• Linear Formula: NaOH
• CAS Number: 1310-73-2
• Molecular Weight: 40.00
• EC Number: 215-185-5
• MDL number: MFCD00003548
• UNSPSC Code: 12352302
• PubChem Substance ID: 329748217
• NACRES: NA.21
• assay: 98-100.5%
• vapor pressure: <18 mmHg ( 20 °C); 3 mmHg ( 37 °C)

Properties

• vapor density: >1 (vs air)
• Quality Level: 200
• vapor pressure: <18 mmHg ( 20 °C); 3 mmHg ( 37 °C)
• grade: puriss.
• assay: 98-100.5%
• form: pellets
• quality: meets analytical specification of Ph. Eur., BP, NF, E524
• impurities: ≤0.0005% total nitrogen (N); ≤0.002% heavy metals (as Pb); ≤0.5% Na₂CO₃
• mp: 318 °C (lit.)
• solubility: water: soluble 1260 g/L at 20 °C

Description

General description

Sodium hydroxide, also known as lye and caustic soda, is a strong base used universally as a neutralization agent in the chemical industry, paper making, petroleum refining, cleaning compounds, and drain cleaners.

Application

Sodium hydroxide can be used as:

• A reagent in the gold-catalyzed selective oxidation of glycerol to glyceric acid.
• A catalyst for the cross-dehydrogenative coupling of alcohols and hydrosilanes to synthesize silyl ethers.
• A base in the transition-metal free Sonogashira-type couplings of aryl halides and alkynes to synthesize ynones in the presence of PEG as a phase-transfer agent.

Safety Information

• pictograms: GHS05
• signalword: Danger
• hcodes: H290,H314
• pcodes: P234 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Storage Class: 8B - Non-combustible corrosive hazardous materials
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable