Name: Sodium Sulfate
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Sodium Sulfate

CAS No.: 7757-82-6
Molecular Formula: Na2SO4
Molecular weight: 142.04214

+86 18765828098

+86 18765828098

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Product Introduction

Sodium Sulfate, with the chemical formula Na₂SO₄, is an inorganic compound. It is a white, odorless crystalline solid, soluble in water, and has stable chemical properties, widely used in various industrial and agricultural fields.

CHEMICAL PROPERTIES

Property	Value
Melting Point	884 °C (lit.)
Boiling Point	1700°C
Bulk Density	1400-1600 kg/m³
Density	2.68 g/mL at 25 °C (lit.)
Refractive Index	1.484
Storage Conditions	Store at +5°C to +30°C.
Solubility	H₂O: 1 M at 20 °C, clear, colorless
Acid Dissociation Constant (pKa)	4.76
Form	Powder
Color	White
Specific Gravity	2.68
Odor	White crystals or powder, odorless, bitter salty taste
pH Value	5.2-8.0 (50g/l, H₂O, 20°C)
pH Range (Indicator)	5.2 - 9.2
Water Solubility	18.5 mg/L
Wavelength Maximum (λ_max)	λ: 260 nm Amax: 0.015 λ: 280 nm Amax: 0.015
Sensitivity	Hygroscopic
Merck	14,8680
Dielectric Constant	2.7 (Ambient)
Stability	Stable. Incompatible with strong acids, aluminum, magnesium, strong bases. Hygroscopic.
Cosmetic Ingredient Functions	BULKING, VISCOSITY CONTROLLING
InChI	1S/2Na.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q2*+1;/p-
InChIKey	PMZURENOXWZQFD-UHFFFAOYSA-L
SMILES	[Na+].[Na+].[O-]S([O-])(=O)=O
LogP	-1.031 (est)
CAS Database	7757-82-6 (CAS DataBase Reference)
NIST Chemical Substances Information	Sodium sulfate (7757-82-6)
EPA Chemical Substances Information	Sodium sulfate (7757-82-6)

SAFETY INFORMATION

Property	Value
Hazard Symbols	Xi
Hazard Class Codes	36/37/38
Safety Description Codes	24/25
WGK Germany	1
RTECS Number	WE1650000
F	3
TSCA	TSCA listed
HS Code	28331100
Storage Class	13 - Non-combustible solids
Hazardous Substances Data	7757-82-6 (Hazardous Substances Data)
Toxicity	LD50 orally in Rabbit: > 2000 mg/kg

PRODUCT USAGE

Sodium sulfate is an important inorganic chemical raw material. In the detergent industry, it is used as a filler and additive to improve detergency and prevent caking. In the textile and dyeing industry, it serves as an accelerating agent for sulfur dyes and vat dyes, helping dyes adhere evenly, and is also used for degreasing and scouring textile fibers. In the glass and paper industries, it helps clarify glass melts and adjust pulp properties. Additionally, it is used as a degreasing agent in leather processing, and as a drying agent and synthetic raw material in pharmaceuticals and chemicals. Its advantages include wide availability, low cost, and good chemical stability.

Factory Showcase

FAQ

Q: Are you a factory or a trading company?

A: We are a company integrating manufacturing and trading.

Q: Can you provide samples for testing before mass production?

A: Of course. We can send you samples free of charge, and we also include a COA. However, you will be responsible for the shipping fee.

Q: How can I get an accurate quote?

A: Please provide the exact product specifications, particle size, color, and intended use, and we will provide you with an accurate quote.

Q: Can you provide a COA?

A: Of course, but only for standard products. If you require an accurate COA, we will produce and test samples before providing you with an accurate COA.

Q: Do you accept ODM or OEM services?

A: Yes, we offer customized services for ingredients, packaging, and labeling. We have strong design capabilities. Please contact us to design your own brand.

Q: Can I visit your factory before placing a large order?

A: Of course. We welcome you at any time.

Q: What is the loading port?

A: Usually Qingdao or Tianjin.