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Sodium hydroxide

CAS:
1310-73-2
MF:
NaOH
MW:
39.99711

Properties

Melting point:
681 °C(lit.)
Boiling point:
145 °C
Density 
1.515 g/mL at 20 °C
vapor density 
<1 (vs air)
vapor pressure 
1 mm Hg ( 745 °C)
refractive index 
1,473-1,475
Flash point:
176-178°C
storage temp. 
room temp
solubility 
H2O: 1 M at 20 °C, clear, colorless
form 
beads
color 
White
Specific Gravity
2.13
Odor
Odorless
PH
>14 (100g/l, H2O, 20℃)
PH Range
13 - 14
Water Solubility 
SOLUBLE
Decomposition 
176-178 ºC
λmax
λ: 260 nm Amax: 0.015
λ: 280 nm Amax: 0.01
Sensitive 
Air Sensitive & Hygroscopic
Merck 
14,8627
Exposure limits
TLV-TWA air 2 mg/m3 (OSHA); ceiling 2 mg/m3 (ACGIH) and 2 mg/m3/15 min (NIOSH).
Stability:
hygroscopic

Safety Information

Symbol(GHS) 

GHS05
Signal word 
Danger
Hazard statements 
H318-H290-H314
Precautionary statements 
P260-P305+P351+P338+P310-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P260h-P301+P330+P331-P405-P501a-P310
Hazard Codes 
C,Xi
Risk Statements 
36/38-35-34
Safety Statements 
26-45-37/39-24/25-36/37/39
RIDADR 
UN 1824 8/PG 2
WGK Germany 
1
RTECS 
TT2975000
8
TSCA 
Yes
HS Code 
2815 11 00
HazardClass 
8
PackingGroup 
II
Toxicity
LD orally in rabbits: 500 mg/kg (10% soln) (Fazekas)

Use

Sodium hydroxide is sold commercially as anhydrous flakes or pellets or as 50% or 73% aqueous solutions. It has countless industrial uses and is one of the top 10 chemical in terms of production and use on a global scale. Approximately 15 million tons of sodium hydroxide is used annually. Its largest use, consuming about half of its production, is as a base in producing other chemicals. It is used to control pH and neutralize acids in chemical processes. The paper industry makes extensive use of sodium hydoxide in the pulping process. Sodium hydroxide is used to separate fibers by dissolving the connecting lignin. It is used in a similar fashion in the production of rayon from cellulose. Sodium hydroxide is a key chemical in the soap industry.In the saponification process, triglycerides obtained from animal and plants are heated in abasic solution to give glycerol and soap:Sodium hydroxide is used in the textile industry for bleaching and treating textiles to makethem dye more readily. The petroleum industry uses sodium hydroxide in drilling muds and asa bactericide. Sodium hypochlorite (NaOCl) is used extensively for cleaning and as a disinfectant.Common household bleach consists of about 5% sodium hypochlorite solution. Sodiumhypochlorite is prepared by reacting chlorine with sodium hydroxide: Cl2(g) + 2NaOH(aq) →NaOCl(aq) + NaCl(aq) + H2O(l). Sodium hydroxide is used in the food industry for cleaningand peeling fruits and vegetables. Sodium hydroxide is a minor ingredient in many commonhousehold products, but in a few it may constitute more than half of the product. Dranocrystals contain between 30% and 60% sodium hydroxide and some drain cleaners can consistof 100% sodium hydroxide.

251 supplier list of "Sodium hydroxide"

    US $0.00/ 200KG

  • Product Name:Sodium hydroxide
  • Products Intro:Purity: 30% | Package: 200KG;USD
  • Type of Enterprise: Manufacturer
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  • Product Name:Sodium hydroxide
  • Products Intro:Purity: 98% HPLC | Package: 5MG;10MG;50MG;100MG,1G,5G
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  • Product Name:Sodium hydroxide
  • Products Intro:Purity: 0.99 | Package: 5KG;1KG/aluminum foil package; 25kg/drum | CustNote: Paypal,credit card,western union,bank transfer
  • Type of Enterprise: Trader
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  • Main Products: hgh191aa,peptides,sarms
  • Product Name:Sodium hydroxide
  • Products Intro:Purity: 97% | Package: 1g/25g/100g/500g/1kg/bulk package
  • Type of Enterprise: Trader
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  • Product Name:Sodium hydroxide
  • Products Intro:Purity: 0.99 | Package: 5KG;1KG
  • Type of Enterprise: Trader
  • Country/Region: CHINA
  • TEL: ;

    US $20.00/ 1KG

  • Product Name:SodiuRemdesivirm hydroxide
  • Products Intro:Purity: 99% | Package: 1KG;20USD
  • Type of Enterprise: Trader
  • Country/Region: CHINA
  • TEL: +8617172178822

    US $20.00/ 1KG

  • Product Name:Caustic soda
  • Products Intro:Purity: 99.99$ | Package: 1KG;20USD
  • Type of Enterprise: Trader
  • Country/Region: CHINA
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    US $2.30/ 25Kg/Bag

  • Product Name:Sodium hydroxide
  • Products Intro:Purity: 99%|Package: 25Kg/Bag;2.3USD
  • Type of Enterprise: Trader
  • Country/Region: CHINA
  • TEL: 008613573296305

    US $10.00/ 1KG

  • Product Name:Sodium hydroxide
  • Products Intro:Purity: 99%min | Package: 1KG;10USD
  • Type of Enterprise: Trader
  • Country/Region: CHINA
  • TEL: 02768782018
  • Product Name:Sodium hydroxide
  • Products Intro:Purity: 0.99 | Package: 100KG;25KG
  • Type of Enterprise: Trader
  • Country/Region: CHINA
  • TEL: 15502138767

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