Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.

Basic Information

• Product Name: L(+)-Potassium hydrogen tartrate
• Alias: Potassium bitartrate; Tartaric acid monopotassium salt; Cream of tartar; L-Tartaric acid monopotassium salt
• CAS No.: 868-14-4
• EINECS No.: 212-769-1
• Molecular Formula: C?H?KO?
• Molecular Weight: 188.18 g/mol
• Classification: Organic potassium salt, food additive (leavening agent), analytical reagent, buffer, reducing agent

Physical & Chemical Properties

• Appearance: White crystalline powder, odorless, with a pleasant cool sour taste
• Density: 1.954 g/mL (25℃, lit.)
• Melting Point: 267℃ (dec.)
• Boiling Point: 318℃ (at 101325 Pa)
• Solubility: Slightly soluble in water (0.54 g/100mL at 20℃; 6.9 g/100mL at 100℃); insoluble in ethanol and acetic acid; soluble in dilute inorganic acids, alkali solutions or borax solutions
• Optical Rotation: [α]2?/D +10° (c=2 in 10% HCl)
• pH Value: 3.66 (saturated aqueous solution, 17℃)
• Purity: ≥99.0% (industrial/food grade)
• Storage Condition: Sealed, cool and dry place; avoid moisture and strong oxidizing agents

Main Uses

• Food Industry: As a leavening agent (baking powder component), anticaking agent, pH regulator, stabilizer and thickener for baked goods, candies, jellies and puddings
• Analytical Chemistry: Used as a buffer, reducing agent and masking agent in volumetric analysis
• Pharmaceutical & Cosmetics: Applied in pharmaceutical formulations and cosmetic products as a pH adjuster and stabilizer
• Industrial Field: Used in electroplating, metal surface treatment and as a raw material for organic synthesis

Specification Table