Sodium Hydroxide CAS#1310-73-2

Sodium Hydroxide CAS#1310-73-2

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PRODUCT PARAMETERS

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.

Packaging and Shipping

桶装包装2


FACTORY DISPLAY

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We are a comprehensive foreign trade company specializing in the international trade of chemical products. Leveraging the strengths of Shandong's chemical industry and the expertise of our professional foreign trade team, we provide global clients with one-stop procurement and export services for a wide range of chemical products—including paints and coatings, fertilizers and agricultural inputs, water treatment chemicals, synthetic resins, paraffin wax and related products, food additives, and cosmetic raw materials.
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Our clients are located worldwide; our primary markets include Southeast Asia (Vietnam, Thailand, Indonesia, Malaysia), the Middle East (UAE, Saudi Arabia), Africa (Nigeria, Kenya, Egypt), Europe and the Americas (Germany, Poland, USA), as well as CIS countries.
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Our company’s product portfolio spans seven major categories, detailed as follows:
Paints & Coatings: Titanium Dioxide, Iron Oxide Pigments, Acrylic/Epoxy Resins, Solvents, Curing Agents, Additives
Fertilizers & Agricultural Inputs: Urea, Diammonium Phosphate (DAP), Muriate of Potash (MOP), Potassium Sulfate, Compound Fertilizers, Ammonium Sulfate
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Paraffin & Wax Products: Fully Refined Paraffin, Semi-Refined Paraffin, Microcrystalline Wax, Vaseline, White Oil
Food Additives: Thickeners (Xanthan Gum, CMC), Preservatives (Sodium Benzoate, Potassium Sorbate), Sweeteners, Acidity Regulators (Citric Acid)
Cosmetic Ingredients: Humectants (Glycerin, Propylene Glycol), Surfactants (AES, 6501), Emulsifiers, White Oil, Vaseline, Functional Additi
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Product requirements vary significantly:
Bulk commodities (e.g., paints, resins, paraffin wax, fertilizers): Generally require a minimum order of 1–5 tons; small-batch trial orders may be available for select products.
Water treatment chemicals: Standard grades are packaged in 25kg bags, with a minimum order quantity of 1 ton.
Food additives and cosmetic raw materials: Small-batch orders (25kg to 1 ton) are supported to facilitate customer sampling and testing.
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We strictly vet our manufacturing partners, collaborating exclusively with high-quality enterprises that hold certifications such as ISO and FDA. A Certificate of Analysis (COA) is provided with every shipment. Upon customer request, we can arrange for third-party inspection agencies—such as SGS, BV, or ITS—to conduct testing and verify that the products meet international standards or specific customer requirements.
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What foreign trade services do you offer?

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We provide comprehensive, end-to-end export services for chemical products, including:
Contract negotiation and Letter of Credit (L/C) review
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Export booking, customs declaration, and inspection filing
Preparation of a complete set of export documents (Bill of Lading, Commercial Invoice, Packing List, COA, Certificate of Origin, Hazardous Packaging Certificate, MSDS, Health Certificate, etc.)
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Are there specific documentation requirements for exporting food additives and cosmetic raw materials?

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