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Sodium Hydroxide CAS#1310-73-2

Sodium Hydroxide CAS#1310-73-2

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product description
Sodium hydroxide, also known as caustic soda, has the chemical formula NaOH. It is a highly corrosive strong alkali, typically appearing as white flakes or granules. It readily mixes with water to form an alkaline solution and is also soluble in methanol and ethanol. Being deliquescent, it absorbs moisture from the air as well as acidic gases like carbon dioxide. Sodium hydroxide is one of the most widely used chemicals, essential in many industrial processes, including the production of paper pulp, textiles, soap, and other cleaning agents. It is also commonly used in household alkaline drain cleaners.

Sodium hydroxide Chemical Properties

Melting point

681 °C(lit.)

Boiling point

1390°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

Fp

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 Range

13 - 14

PH

10.98(1 mM solution);11.95(10 mM solution);12.88(100 mM solution);

Water Solubility

SOLUBLE

Sensitive

Air Sensitive & Hygroscopic

Decomposition

176-178 ºC

λmax

λ: 260 nm Amax: 0.015

λ: 280 nm Amax: 0.01

Merck

148,627

Dielectric constant

57.5(25℃)

Exposure limits

TLV-TWA air 2 mg/m3 (OSHA); ceiling 2 mg/m3 (ACGIH) and 2 mg/m3/15 min (NIOSH).

Stability:

hygroscopic

CAS DataBase Reference

1310-73-2(CAS DataBase Reference)

NIST Chemistry Reference

Sodium hydroxide(1310-73-2)

EPA Substance Registry System

Sodium hydroxide (1310-73-2)

Safety Information


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

F

8

TSCA

Yes

HS Code

2815 11 00

HazardClass

8

PackingGroup

II

Hazardous Substances Data

1310-73-2(Hazardous Substances Data)

Toxicity

LD orally in rabbits: 500 mg/kg (10% soln) (Fazekas)

IDLA

10 mg/m3


Sodium hydroxide has a broad range of applications. In chemical experiments, it serves not only as a reagent but also as an alkaline desiccant due to its strong hygroscopic properties. Caustic soda plays a vital role in the national economy, with numerous industrial sectors relying on it. The largest consumer is the chemical manufacturing industry, followed by paper production, aluminum and tungsten smelting, viscose fiber manufacturing, and soap production. It is also used in the manufacture of dyes, plastics, pharmaceuticals, organic intermediates, reclaimed rubber, metal sodium electrolysis, water treatment, and inorganic salt production such as borax, chromium salts, manganates, and phosphates.

Industrial sodium hydroxide must meet the requirements of national standard GB209-2006;
Industrial ion-exchange membrane sodium hydroxide should comply with GB/T11199-89;
Sodium hydroxide for chemical fiber should meet GB11212-89;
Food-grade sodium hydroxide must conform to GB5175-85.

In industrial contexts, sodium hydroxide is commonly referred to as caustic soda, a name derived from its ability to cause severe skin burns upon contact with concentrated solutions. It dissolves proteins, making alkali burns slower to heal than acid burns. A 0.02% solution instilled into rabbit eyes can damage the corneal epithelium. Toxicity data include: mouse intraperitoneal LD50 of 40 mg/kg and rabbit oral LDLo of 500 mg/kg. Dust can irritate the eyes and respiratory tract, corrode the nasal septum, and damage skin—especially mucous membranes—producing soft scabs that may penetrate deeply and leave permanent scars.

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FAQ

1. What are Jinyu Chemical primary product lines?
Our company specializes in petrochemicals (methanol, styrene, ethylene glycol), plastic resins (PP, PE, PVC, ABS), fine chemicals (pharmaceutical/pesticide intermediates, additives, solvents), chemical fiber raw materials (PTA, polyester filament, polyester staple fiber), inorganic chemicals (soda ash, caustic soda, titanium dioxide), as well as rubber, paraffin wax, and other products. We offer one-stop procurement services covering a wide range of categories.


2. Are you a trading company or a manufacturer?
We are a professional chemical trading company specializing in international trade. We have established long-term strategic partnerships with numerous high-quality domestic manufacturers to ensure a stable supply of goods and competitive pricing, while also providing comprehensive export services throughout the entire process.


3. Can you provide third-party inspection reports?
Yes. We provide a Certificate of Analysis (COA) with every shipment. Additionally, upon a client's request, we can arrange for inspections by third-party agencies such as SGS, BV, or ITS; the associated costs and details are negotiable.


4. What is the Minimum Order Quantity (MOQ)?
For plastic resins and chemical fiber raw materials, the MOQ typically starts at 1–5 tons, and we welcome small-batch trial orders. For liquid chemicals, bulk shipments start at 20 tons, while drummed shipments can be consolidated (LCL). For fine chemicals, the MOQ is determined on a case-by-case basis depending on the specific product.


5. From which ports do you primarily ship?
Our company is located in close proximity to the Port of Tianjin. We can also arrange shipments from other major domestic ports—such as Qingdao or Shanghai—to meet our clients' specific requirements.


6. Can you handle the export of hazardous materials?
Yes. Our company holds a valid license for the operation of hazardous chemicals. We are well-versed in the procedures for hazardous material declaration, obtaining hazardous packaging certificates, and booking cargo space, thereby ensuring full compliance with all export regulations.


7. What payment methods do you accept?
Our standard payment terms are T/T (30% upfront deposit, with the remaining 70% payable upon presentation of a copy of the Bill of Lading) or Sight L/C (Letter of Credit). For small-batch sample orders, we also accept Western Union. For long-term partners—subject to a credit assessment—we may negotiate deferred L/C or Open Account (OA) terms.


8. What is your typical lead time?
For standard products, the lead time is typically 7–15 business days. For customized products or those with special specifications, it is 15–25 business days. For in-stock items, shipments can be dispatched within 3–7 business days after receipt of payment.

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